Member-at-large of APS Topical Group on Gravitation
Just one more committee
Posts by Tags
Browse by: Category Tags Year#APS
#BMS
Prescriptions for Measuring and Transporting Local Angular Momenta in General Relativity
Angular momentum is tricky to define in GR! Here’s an approach so that observers can all agree with each others’ measurements.
#Chern-Simons
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
Recent talks in Rome and Nottingham
Just an update on talks I gave recently. Valeria Ferrari, Leonardo Gualtieri, and Paolo Pani hosted the conference “New Frontiers in Gravitational-Wave Astr...
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
TG17 and APS17 talk slides
My talk slides/movies from TG17 and APS17
FF2016 Talk Slides
My talk slides/movies from the FF2016 conference at Northwestern
GR21 Talk Slides
My talk slides/movies from the GR21 conference in NYC
April APS Talk Slides
My talks slides/movies from the 2016 April APS meeting in SLC
Extremal Black Holes in Dynamical Chern-Simons Gravity
Progress in understanding the structure of extremal black holes in Chern-Simons
Rapidly Rotating Black Holes in Dynamical Chern-Simons Gravity: Decoupling Limit Solutions and Breakdown
Numerical solutions for rapidly-rotating dCS black holes show where the weak-coupling expansion breaks down.
#GGR
Member-at-large of APS Topical Group on Gravitation
Just one more committee
#Gauss-Bonnet
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
#INSPIRE
Living Reviews in Relativity author index
I missed the author index from LRR, so I rebuilt one.
#LIGO
Measuring stochastic gravitational-wave energy beyond general relativity
Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
#LRR
Living Reviews in Relativity author index
I missed the author index from LRR, so I rebuilt one.
#SXS
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
#algebra
Notes: A family of ramp functions and the Beta function
Sometimes in a numerical method, you need to be able to continuously turn a calculation on or off in space or time.
Complex polynomial roots toy
Interactive toy for visualizing relationship between polynomial roots and coefficients
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
Note on commutation coefficients in two ways
An identity between vector commutation coefficients and coframe connection coefficients
Note on exterior, interior, and Lie derivative superalgebra
These three objects form a superalgebra! Whoa!
Note on a (dimension-dependent) Weyl identity
There is a nice 4-dimensional Weyl identity that I can never seem to remember off the top of my head; so I decided I need to write this note so I don’t have ...
#asymptotia
Prescriptions for Measuring and Transporting Local Angular Momenta in General Relativity
Angular momentum is tricky to define in GR! Here’s an approach so that observers can all agree with each others’ measurements.
#beyond-GR
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
Measuring stochastic gravitational-wave energy beyond general relativity
Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
Recent talks in Rome and Nottingham
Just an update on talks I gave recently. Valeria Ferrari, Leonardo Gualtieri, and Paolo Pani hosted the conference “New Frontiers in Gravitational-Wave Astr...
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
TG17 and APS17 talk slides
My talk slides/movies from TG17 and APS17
EHT16 Talk Slides
My talk slides/movies from the EHT16 conference in Cambrige, MA
FF2016 Talk Slides
My talk slides/movies from the FF2016 conference at Northwestern
GR21 Talk Slides
My talk slides/movies from the GR21 conference in NYC
April APS Talk Slides
My talks slides/movies from the 2016 April APS meeting in SLC
Black Hole Based Tests of General Relativity
Invited review for CQG Focus Issue
Extremal Black Holes in Dynamical Chern-Simons Gravity
Progress in understanding the structure of extremal black holes in Chern-Simons
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
Testing General Relativity With Present and Future Astrophysical Observations
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
Rapidly Rotating Black Holes in Dynamical Chern-Simons Gravity: Decoupling Limit Solutions and Breakdown
Numerical solutions for rapidly-rotating dCS black holes show where the weak-coupling expansion breaks down.
Probes of Strong-field Gravity (PhD Thesis) External link
MIT PhD thesis of Leo C. Stein
#black holes
The location of the last stable orbit in Kerr spacetime
The dividing line between bound and plunging orbits is an algebraic variety
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Titanium Physicists podcast episode 80 External link
Hear me, Katie Bouman, and friends talk about how to snap a picture of a black hole with the Event Horizon Telescope!
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
On the Starts with a Bang Podcast! External link
I’m on Episode 42 of the Starts with a Bang Podcast
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Recent talks in Rome and Nottingham
Just an update on talks I gave recently. Valeria Ferrari, Leonardo Gualtieri, and Paolo Pani hosted the conference “New Frontiers in Gravitational-Wave Astr...
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
TG17 and APS17 talk slides
My talk slides/movies from TG17 and APS17
EHT16 Talk Slides
My talk slides/movies from the EHT16 conference in Cambrige, MA
FF2016 Talk Slides
My talk slides/movies from the FF2016 conference at Northwestern
GR21 Talk Slides
My talk slides/movies from the GR21 conference in NYC
On the Titanium Physicists Podcast AGAIN! External link
I’m on Episode 64 of the Titanium Physicists Podcast
April APS Talk Slides
My talks slides/movies from the 2016 April APS meeting in SLC
Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
Black Hole Based Tests of General Relativity
Invited review for CQG Focus Issue
On the Titanium Physicists Podcast! External link
I’m on Episode 62 of the Titanium Physicists Podcast
Extremal Black Holes in Dynamical Chern-Simons Gravity
Progress in understanding the structure of extremal black holes in Chern-Simons
Kerr Calculator V2
Interactive tool to compute Kerr quantities
Kerr ISCO calculator
Interactive tool to compute ISCOs in Kerr
Testing General Relativity With Present and Future Astrophysical Observations
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
Rapidly Rotating Black Holes in Dynamical Chern-Simons Gravity: Decoupling Limit Solutions and Breakdown
Numerical solutions for rapidly-rotating dCS black holes show where the weak-coupling expansion breaks down.
Probes of Strong-field Gravity (PhD Thesis) External link
MIT PhD thesis of Leo C. Stein
#chaos
Poincaré section clicker for the double pendulum
Interactive toy for understanding Poincaré sections and chaos
#code
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
Simple slow-rotation neutron star structure solver External link
I’m releasing into the wild a simple code for computing neutron star structure in the slow-rotation expansion to first and second order. This code was origi...
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
Elliptic Integrals in Javascript External link
I just created a repo on github for computing complete elliptic integrals in javascript. The README.md is below, and a demo after that. You might ask yoursel...
Whitespace Cleanup on Diff Lines in Emacs
If you’re in the intersection of git, emacs, and persnickety about whitespace.
#collaboration
Winning at #science With Twitter
That moment when social media creates scientific collaboration
#compact objects
Simple slow-rotation neutron star structure solver External link
I’m releasing into the wild a simple code for computing neutron star structure in the slow-rotation expansion to first and second order. This code was origi...
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
Testing General Relativity With Present and Future Astrophysical Observations
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
#conformal
(Notes) When is a metric conformal to Ricci-flat?
Integrability conditions when trying to solve for a conformal factor
#dynamics
Poincaré section clicker for the double pendulum
Interactive toy for understanding Poincaré sections and chaos
The location of the last stable orbit in Kerr spacetime
The dividing line between bound and plunging orbits is an algebraic variety
Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
“Slimplectic” Integrators: Variational Integrators for General Nonconservative Systems
A generalization of symplectic integrators to non-conservative dynamics.
The Principle of Stationary Nonconservative Action for Classical Mechanics and Field Theories
Extending Hamilton’s variational principle to nonconservative systems.
#emacs
Whitespace Cleanup on Diff Lines in Emacs
If you’re in the intersection of git, emacs, and persnickety about whitespace.
#general relativity
The location of the last stable orbit in Kerr spacetime
The dividing line between bound and plunging orbits is an algebraic variety
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Titanium Physicists podcast episode 80 External link
Hear me, Katie Bouman, and friends talk about how to snap a picture of a black hole with the Event Horizon Telescope!
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
On the Starts with a Bang Podcast! External link
I’m on Episode 42 of the Starts with a Bang Podcast
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Measuring stochastic gravitational-wave energy beyond general relativity
Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
EHT16 Talk Slides
My talk slides/movies from the EHT16 conference in Cambrige, MA
On the Titanium Physicists Podcast AGAIN! External link
I’m on Episode 64 of the Titanium Physicists Podcast
Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
Prescriptions for Measuring and Transporting Local Angular Momenta in General Relativity
Angular momentum is tricky to define in GR! Here’s an approach so that observers can all agree with each others’ measurements.
Black Hole Based Tests of General Relativity
Invited review for CQG Focus Issue
On the Titanium Physicists Podcast! External link
I’m on Episode 62 of the Titanium Physicists Podcast
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
Kerr Calculator V2
Interactive tool to compute Kerr quantities
Kerr ISCO calculator
Interactive tool to compute ISCOs in Kerr
Testing General Relativity With Present and Future Astrophysical Observations
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
Probes of Strong-field Gravity (PhD Thesis) External link
MIT PhD thesis of Leo C. Stein
#geometry
(Notes) When is a metric conformal to Ricci-flat?
Integrability conditions when trying to solve for a conformal factor
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
Note on commutation coefficients in two ways
An identity between vector commutation coefficients and coframe connection coefficients
Note on exterior, interior, and Lie derivative superalgebra
These three objects form a superalgebra! Whoa!
Note on Lie derivatives and divergences
When can you integrate-by-parts with Lie derivatives?
Note on generating a divergence identity
Special thanks to Ben Mares for coming up with this identity.
Note on a (dimension-dependent) Weyl identity
There is a nice 4-dimensional Weyl identity that I can never seem to remember off the top of my head; so I decided I need to write this note so I don’t have ...
Notes on the Weyl, E/B, and 3+1 decompositions of Riemann, and curvature invariants
The Weyl decomposition, further splitting into E/B, and computing in terms of 3+1 objects
Notes on the pullback connection
In an effort to keep myself organized, I decided I should type up some notes I have laying around.
Prescriptions for Measuring and Transporting Local Angular Momenta in General Relativity
Angular momentum is tricky to define in GR! Here’s an approach so that observers can all agree with each others’ measurements.
#git
Whitespace Cleanup on Diff Lines in Emacs
If you’re in the intersection of git, emacs, and persnickety about whitespace.
#gravitational waves
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Measuring stochastic gravitational-wave energy beyond general relativity
Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
Testing General Relativity With Present and Future Astrophysical Observations
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
#gravity
The location of the last stable orbit in Kerr spacetime
The dividing line between bound and plunging orbits is an algebraic variety
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Measuring stochastic gravitational-wave energy beyond general relativity
Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
Probes of Strong-field Gravity (PhD Thesis) External link
MIT PhD thesis of Leo C. Stein
#group theory
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
#integrability
(Notes) When is a metric conformal to Ricci-flat?
Integrability conditions when trying to solve for a conformal factor
#interactive
Poincaré section clicker for the double pendulum
Interactive toy for understanding Poincaré sections and chaos
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
Complex polynomial roots toy
Interactive toy for visualizing relationship between polynomial roots and coefficients
Kerr Spherical Photon Orbits
Interactive tool for visualizing spherical/circular photon orbits in Kerr
Kerr Calculator V2
Interactive tool to compute Kerr quantities
Kerr ISCO calculator
Interactive tool to compute ISCOs in Kerr
#ipython
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#iterm2
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#javascript
Elliptic Integrals in Javascript External link
I just created a repo on github for computing complete elliptic integrals in javascript. The README.md is below, and a demo after that. You might ask yoursel...
#jupyter
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#lisp
Whitespace Cleanup on Diff Lines in Emacs
If you’re in the intersection of git, emacs, and persnickety about whitespace.
#numerical relativity
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
The SXS Collaboration catalog of binary black hole simulations
Accurate models of gravitational waves from merging black holes are necessary for detectors to observe as many events as possible while extracting the maximu...
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
#outreach
Titanium Physicists podcast episode 80 External link
Hear me, Katie Bouman, and friends talk about how to snap a picture of a black hole with the Event Horizon Telescope!
On the Starts with a Bang Podcast! External link
I’m on Episode 42 of the Starts with a Bang Podcast
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
On the Titanium Physicists Podcast AGAIN! External link
I’m on Episode 64 of the Titanium Physicists Podcast
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
On the Titanium Physicists Podcast! External link
I’m on Episode 62 of the Titanium Physicists Podcast
#perturbation theory
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
Numerical binary black hole mergers in dynamical Chern-Simons: I. Scalar field
One of the first numerical simulations of black hole mergers in beyond-GR effective field theories
Probes of Strong-field Gravity (PhD Thesis) External link
MIT PhD thesis of Leo C. Stein
#podcast
Titanium Physicists podcast episode 80 External link
Hear me, Katie Bouman, and friends talk about how to snap a picture of a black hole with the Event Horizon Telescope!
On the Starts with a Bang Podcast! External link
I’m on Episode 42 of the Starts with a Bang Podcast
On the Titanium Physicists Podcast AGAIN! External link
I’m on Episode 64 of the Titanium Physicists Podcast
On the Titanium Physicists Podcast! External link
I’m on Episode 62 of the Titanium Physicists Podcast
#polynomial
Complex polynomial roots toy
Interactive toy for visualizing relationship between polynomial roots and coefficients
#pulsars
Challenging the Presence of Scalar Charge and Dipolar Radiation in Binary Pulsars
Not all theories with long-ranged scalar fields produce dipole radiation in binaries
Testing General Relativity With Present and Future Astrophysical Observations
A major review on non-GR theories, black holes and neutron stars in non-GR theories, compact binaries in non-GR theories, and pulsar, gravitational-wave, and...
#python
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
Living Reviews in Relativity author index
I missed the author index from LRR, so I rebuilt one.
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#quora
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
#remote
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#ringdown
Numerical relativity simulation of GW150914 beyond general relativity
The first astrophysically-relevant numerical simulation of merging black holes in a higher-curvature theory beyond GR.
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Numerical binary black hole collisions in dynamical Chern-Simons gravity
The first numerical beyond-GR binary black hole merger simulation.
#roots
Complex polynomial roots toy
Interactive toy for visualizing relationship between polynomial roots and coefficients
#scientific computing
qnm: A Python package for calculating Kerr quasinormal modes, separation constants, and spherical-spheroidal mixing coefficients
qnm is an open-source Python package for computing the Kerr quasinormal mode frequencies, angular separation constants, and spherical-spheroidal mixing coeff...
Simple slow-rotation neutron star structure solver External link
I’m releasing into the wild a simple code for computing neutron star structure in the slow-rotation expansion to first and second order. This code was origi...
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#social media
Quora session on gravitational waves, LIGO, black holes External link
I hosted a Quora session. It went well!
Winning at #science With Twitter
That moment when social media creates scientific collaboration
#special functions
Notes: A family of ramp functions and the Beta function
Sometimes in a numerical method, you need to be able to continuously turn a calculation on or off in space or time.
Elliptic Integrals in Javascript External link
I just created a repo on github for computing complete elliptic integrals in javascript. The README.md is below, and a demo after that. You might ask yoursel...
#ssh
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
#stochastic
Measuring stochastic gravitational-wave energy beyond general relativity
Gravity theories beyond general relativity (GR) can change the properties of gravitational waves: their polarizations, dispersion, speed, and, importantly, e...
#superalgebra
Note on exterior, interior, and Lie derivative superalgebra
These three objects form a superalgebra! Whoa!
#surrogate
Surrogate models for precessing binary black hole simulations with unequal masses
A surrogate model extending the parameter space range of fully precessing quasicircular inspirals
High-accuracy mass, spin, and recoil predictions of generic black-hole merger remnants
Modeling black holes remnants directly from numerical relativity
Black-hole kicks from numerical-relativity surrogate models
Modeling black holes’ kicks directly from numerical relativity
#symmetry
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
Deformation of extremal black holes from stringy interactions
Finding the shape of extremal black holes in beyond-GR theories
Separating metric perturbations in near-horizon extremal Kerr spacetimes
Whenever you’ve got symmetry, you should use it!
#topology
Black hole scalar charge from a topological horizon integral in Einstein-dilaton-Gauss-Bonnet gravity
In theories of gravity that include a scalar field, a compact object’s scalar charge is a crucial quantity since it controls dipole radiation, which can be s...
#tunnel
ssh ipython notebook tunneling magic
How to get remote jupyter to automatically open a local browser.
Winning at #science With Twitter
That moment when social media creates scientific collaboration
#visualization
The binary black hole explorer: on-the-fly visualizations of precessing binary black holes
Real-time interactive visualizations of merging black holes in seconds!
#webinar
Talk on the Latin American Webinar on Physics External link
Want to hear me talk about numerical relativity and theories beyond GR?
#xTensor
Note on simple(r) equations for Einstein-dilaton-Gauss-Bonnet and dynamical Chern-Simons theories
Here to save you some algebra and column-inches
Note on a (dimension-dependent) Weyl identity
There is a nice 4-dimensional Weyl identity that I can never seem to remember off the top of my head; so I decided I need to write this note so I don’t have ...
#xml
Living Reviews in Relativity author index
I missed the author index from LRR, so I rebuilt one.