May, 2022: Signatures of mass ratio reversal in gravitational waves from merging binary black holes
(Broekgaarden, Stevenson, Thrane) posted on the arxiv.
April, 2022: When models fail: an introduction to posterior predictive checks and model misspecification in gravitational-wave astronomy
(Romero-Shaw, Thrane, Lasky) accepted for publication in Pub. Astron. Soc. Aust.
April, 2022: GWCloud: a searchable repository for the creation and curation of gravitational-wave inference results
(Baker, Lasky, Thrane, Ashton, Cantos, Lakerink, Leslie, Poole, Reichardt) posted on the arxiv.
April, 2022: Orbital dynamics and extreme scattering event properties from long-term scintillation observations of PSR J1603-7202
(Walker, Reardon, Thrane, Smith) accepted in Astrophys. J.
April, 2022: The imprint of superradiance on hierarchical black hole mergers
(Payne, Sun, Kremer, Lasky Thrane) accepted for publciation in Astrophys. J.
I enjoyed teaching year-3/4 students about black holes at an outreach event today!
March, 2022: Linking the rates of neutron star binaries and short gamma-ray bursts
(Sarin et al) accepted for publication in Phys. Rev. D.
March, 2022: Deep follow-up of GW151226: ordinary binary or low-mass-ratio system?
(Vajpeyi, Smith, Thrane) posted on the arxiv.
March, 2022: Measuring the properties of active galactic nuclei disks with gravitational waves
(Vajpeyi, Thrane, Smith, McKernan, Ford) accepted for publication in Astrophys. J.
March, 2022: Fast, flexible, and accurate evaluation of Malmquist bias with machine learning: Preparing for the pending flood of gravitational-wave detections
(Talbot and Thrane) published in Astrophys. J
February, 2022: Don't Just Leave-One-Out: Probing Extremal Gravitational-Wave Events with Coarse-grained Likelihoods
(Essick et al) published in Astrophys. J
A huge congratulations to Ethan Payne, winner of the Australian Institute of Physics TH Laby Medal
"for the best Honours or Masters thesis from an Australian University."
January, 2022: Bayesian WIMP detection with the Cherenkov Telescope Array
(Mangipudi, Thrane, Balazs) posted on the arxiv.
December, 2021: Optimized localization for gravitational-waves from merging binaries
(You, Ashton, Zhu, Thrane, Zhu) published in Mon. Not. R. Ast. Soc
November, 2021: Did Goryachev et al. detect megahertz gravitational waves?
(Lasky & Thrane) published in Phys. Rev. D
Congratulations to Isobel Romero-Shaw for submission of her dissertation, Eccentricity in gravitational-wave transients
(Credit: S. Galaudage)
The third LIGO-Virgo catalog GWTC-3 is now public! Postgraduate student, Isobel Romero-Shaw, contributed to the writing of the catalog paper
. Shanika Galaudage, meanwhile, contributed to the population paper
. In the news: Record number of new gravitational waves offers game-changing window into Universe
November, 2021: Implications of Eccentric Observations on Binary Black Hole Formation Channels
(Zevin, Romero-Shaw, Kremer, Thrane, Lasky) published in Astrophys. J. Lett
November, 2021: Signs of eccentricity in two gravitational-wave signals may indicate a sub-population of dynamically assembled binary black holes
(Romero-Shaw, Lasky, Thrane) published in Astrophys. J. Lett
. See also: Can Gravitational Waves Tell Us How Binary Black Holes Form
November, 2021: Building better spin models for merging binary black holes: Evidence for non-spinning and rapidly spinning nearly aligned sub-populations
(Galaudage, Talbot, Nagar, Jain, Thrane, Mandel) published in Astrophys. J. Lett
October, 2021: Inference with finite time series: Observing the gravitational Universe through windows
(Talbot, Thrane, Biscoveanu, Smith) published in Phys. Rev. Res.
October, 2021: Constraints on Weak Supernova Kicks from Observed Pulsar Velocities
(Wilcox, Mandel, Thrane, Deller, Stevenson, Vigna-Gómez) published in Astrophy. J. Lett
August, 2021: Bayesian inference for gravitational waves from binary neutron star mergers in third-generation observatories
(Smith et al.) published in Phys. Rev. Lett
August, 2021: On the evidence for a common-spectrum process in the search for the nanohertz gravitational wave background with the Parkes Pulsar Timing Array
(Goncharov et al.) published in Astrophys. J. Lett
I had a blast doing "Solve It! for Kids," a podcast by Jennifer Swanson and Jeff Gonyea.
Episode 63 is How Do Scientists LISTEN to Black Holes?
July, 2021: A search for intermediate-mass black holes mergers
(Vajpeyi et al) posted on the arxiv.
July, 2021: Evidence for hierarchical black hole mergers in the second LIGO--Virgo gravitational-wave catalog
(Kimball et al.) published in Astrophys. J. Lett
July, 2021: LIGO--Virgo correlations between mass ratio and effective inspiral spin: testing the active galactic nuclei channel>
(McKernan et al.) posted on the arxiv.
Come work for Monash Gravity! We are advertising for postdocs in astrophysics and gravitational-wave astronomy (advert
). Get in touch if you're interested.
July, 2021: The Memory Remains (Undetected): Updates from the Second LIGO/Virgo Gravitational-Wave Transient Catalog
(Hübner, Lasky, Thrane) published in Phys. Rev. D
June, 2021: Observation of Gravitational Waves from Two Neutron Star–Black Hole Coalescences
publisheed in Astrophys. J. Lett.
Congratulations to my colleague, Rory Smith, who co-wrote this paper for the LIGO-Virgo Collaborations!
See Rory's popular science summary in The Conversation: ‘Laws of nature turned up to 11’: astronomers spot two neutron stars being swallowed by black holes
June, 2021: Gravitational Waves as a Probe of Globular Cluster Formation and Evolution
(Romero-Shaw, Kremer, Lasky, Thrane, Samsing) accepted for publication in Mon. Not. R. Ast. Soc.
Congratulations to my former PhD student, Colm Talbot, has been awarded the Charlene Heisler Prize for the most outstanding astronomy PhD thesis in Australia.
Colm Talbot is the recipient of the 2020 Vice-Chancellor’s Commendation for Thesis Excellence (for the best Monash dissertation in any subject last year). Congratulations, Colm!
March, 2021: Evidence for an intermediate-mass black hole from a gravitationally lensed gamma-ray burst
(Paynter, Webster, Thrane) published in Nature Astronomy
. We present evidence for the detection of a ~6×104
solar mass black hole using the apparently lensed pulses of GRB 950830. The discovery was covered by a number of outlets including The Independent
, The Daily Mail
, and Quanta Magazine
March, 2021: Heavy double neutron stars: birth, mid-life and death
(Galaudage, Adamcewicz, Zhu, Stevenson, Thrane) published in Astrophys. J. Lett
February, 2021: Population properties of compact objects from the second LIGO-Virgo Gravitational-Wave Transient Catalog
published in Astrophys. J
as part of a Focus Issue
: Gravitational-wave Astrophysics from the Second LIGO-Virgo Transient Catalog.
See also: Astronomers probe black hole origins after 39 new cosmic collisions detected
, Black hole mergers? 44 confirmed, and counting
, Monash press release
, the GWTC-2 paper
, LVK webinar on YouTube
February, 2021: Standard-siren cosmology using gravitational waves from binary black holes
(You, Zhu, Ashton, Thrane) published in Astrophys. J
January, 2021: Black-hole spectroscopy, the no-hair theorem and GW150914: Kerr vs. Occam
(Calderón Bustillo, Lasky, Thrane) published in Phys. Rev. D
January, 2021: Temperature dependent appearance of exotic matter makes nascent neutron stars spin faster
(Hernandez-Vivanco et al.) posted on the arxiv.
The ARC has funded "Australian Partnership in Advanced LIGO+" (LE210100002); $3M AUD for 12 investigators.
December, 2020: Gravitational-wave astronomy with a physical calibration model
(Payne, Talbot, Lasky, Thrane, Kissel) published in Phys Rev D
December, 2020: Gravitational-wave astronomy with an uncertain noise power spectral density
(Talbot, Thrane) published in Phys. Rev. Res
November, 2020: A scalable random forest regressor for combining neutron-star equation of state measurements: A case study with GW170817 and GW190425
(Hernandez Vivanco, Smith, Thrane, Lasky) published in Mon. Not. R. Ast. Soc
November, 2020: Searching for anisotropy in the distribution of binary black hole mergers
(Payne, Banagiri, Lasky, Thrane) published in Phys. Rev. D
November, 2020: Neutron Star Extreme Matter Observatory: A kilohertz-band gravitational-wave detector in the global network
(Ackley et al; OzGrav) published in PASA
November, 2020: Constraining temperature distribution inside LIGO test masses from frequencies of their vibrational modes
(Blair, Levin, Thrane) published in Phys. Rev. D
November, 2020: Measuring the primordial gravitational-wave background in the presence of astrophysical foregrounds
(Biscoveanu, Talbot, Thrane, Smith) published in Phys. Rev. Lett.
October, 2020: Identifying and mitigating noise sources in precision pulsar timing data sets
(Goncharov et al.) published in MNRAS
October, 2020: GW190521: orbital eccentricity and signatures of dynamical formation in a binary black hole merger signal
(Romero-Shaw, Lasky, Thrane, (Calderón Bustillo) published in Astrophys. J. Lett.
, OzGrav press release
October, 2020: Gravitational-wave inference in the catalog era: evolving priors and marginal events
(Galaudage, Talbot, Thrane) published in Phys. Rev. D
September, 2020: Black hole genealogy: Identifying hierarchical mergers with gravitational waves
(Kimball, Talbot, Berry, Carney, Zevin, Thrane, Kalogera) published in Astrophys. J
September, 2020: Bayesian inference for compact binary coalescences with BILBY: Validation and application to the first LIGO--Virgo gravitational-wave transient catalogue
(Romero-Shaw, Talbot, Biscoveanu, et al. published in Mon. Not. R. Ast. Soc
September, 2020: Toward the unambiguous identification of supermassive binary black holes through Bayesian inference
(Zhu, Thrane) published in ApJ
September, 2020: 'Impossible' black hole causes biggest collision ever detected by gravitational waves
featuring Monash PhD student Isobel Romero-Shaw.
There are two papers: GW190521: A Binary Black Hole Merger with a Total Mass of 150 M⚆
(published in Phys. Rev. Lett.) and Properties and Astrophysical Implications of the 150 M⚆ Binary Black Hole Merger GW190521
August, 2020: GW190412: Observation of a Binary-Black-Hole Coalescence with Asymmetric Masses
(LIGO/Virgo) published in Phys. Rev. D
August, 2020: Is there a spectral turnover in the spin noise of millisecond pulsars?
(Goncharov, Zhu, Thrane) published in MNRAS
July, 2020: The astrophysical odds of GW151216
(Ashton, Thrane) publishedin MNRAS
June, 2020: GW190814: Gravitational Waves from the Coalescence of a 23 Solar Mass Black Hole with a 2.6 Solar Mass Compact Object
(LIGO/Virgo) published in Astrophys. J. Lett.
June, 2020: Memory Effect or Cosmic String? Classifying Gravitational-Wave Bursts with Bayesian Inference
(Divakarla, Thrane, Lasky, Whiting) published in Phys. Rev. D
June, 2020: Inferring the population properties of binary black holes from unresolved gravitational waves
(Smith, Talbot, Hernandz Vivanco, Thrane) published in MNRAS
May, 2020: On the origin of GW190425
(Romero-Shaw, Farrow, Stevenson, Thrane, Zhu), published in MNRAS Lett
April, 2020: Constraining short gamma-ray burst jet properties with gravitational waves and gamma rays
(Biscoveanu, Thrane, Vitale) published in Astrophys. J
April, 2020: Ultra-relativistic astrophysics using multi-messenger observations of double neutron stars with LISA and the SKA
(Thrane, Osłowski, Lasky) published in MNRAS
January, 2020: Thanks for the memory: measuring gravitational-wave memory in the first LIGO/Virgo gravitational-wave transient catalog
(Hübner, Talbot, Lasky, Thrane) published in Phys. Rev. D
. The paper was also featured in an article on space.com
January, 2020: GW190425: Observation of a Compact Binary Coalescence with Total Mass 3.4 M☉
(LIGO/Virgo) published in Astrophys. J. Lett
December, 2019: Ground-Based Gravitational-Wave Astronomy in Australia: 2019 White Paper
(Bailes et al.) posted on the arxiv.
December, 2019: Higher order gravitational-wave modes with likelihood reweighting
(Payne, Talbot, Thrane) published in Phys. Rev. D
December, 2019: Gravitational wave detection without boot straps: a Bayesian approach
(Ashton, Thrane, Smith) published in Phys. Rev. D
November, 2019: Measuring the neutron star equation of state with gravitational waves: the first forty binary neutron star mergers
(Hernandez Vivanco, Smith, Thrane, Lasky, Talbot, Raymond) published in Phys. Rev. D
November, 2019: Searching for Eccentricity: Signatures of Dynamical Formation in the First Gravitational-Wave Transient Catalogue of LIGO and Virgo
(Romero-Shaw, Lasky, Thrane) published in MNRAS
September, 2019: Binary Black Hole Population Properties Inferred from the First and Second Observing Runs of Advanced LIGO and Advanced Virgo
published in Astrophys. J. Lett
September, 2019: Parallelized Inference for Gravitational-Wave Astronomy
(Talbot, Smith, Thrane, Poole) published in Phys. Rev. D
September, 2019: GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
published in Phys. Rev. X
August, 2019: Accelerated detection of the binary neutron star gravitational-wave background
(Hernandez Vivanco, Smith, Thrane, and Lasky) published in Phys. Rev. D
May, 2019: Exploring the sensitivity of gravitational wave detectors to neutron star physics
(Martynov et al.) published in Phys. Rev. D
May, 2019: We've detected new gravitational waves, we just don't know where they come from (yet)
with Tara Murphy and Qi Chu.
April, 2019: The mass distribution of Galactic double neutron stars
(Farrow, Zhu, and Thrane) published in The Astrophys. J.
March, 2019: Directional limits on persistent gravitational waves using data from Advanced LIGO's first two observing runs
published in Phys. Rev. D
March, 2019: An introduction to Bayesian inference in gravitational-wave astronomy: parameter estimation, model selection, and hierarchical models
(Thrane and Talbot) published in PASA
I appeared in The Black Hole Hunters
produced by ABC Catalyst alongside fellow OzGrav members, David Blair and Carl Blair, with host, Tamara Davis.
February, 2019: Bilby: A user-friendly Bayesian inference library for gravitational-wave astronomy
(Ashton, et al.) published in the Astrophys. J. Supp
Filming for an upcoming program on black holes next to the OzStar computer.
(Credit: Amy Sherden)
November, 2018: The minimum and maximum gravitational-wave background from supermassive binary black holes
(Zhu, Cui, and Thrane) published in MNRAS
November, 2018: Measuring eccentricity in binary black hole inspirals with gravitational waves
(Lower, Thrane, Lasky, and Smith) published in Phys. Rev. D
September, 2018: Gravitational-wave memory: waveforms and phenomenology
(Talbot, Thrane, Lasky, and Lin) published in Phys. Rev. D
August, 2018: An all-sky radiometer for narrowband gravitational waves using folded data
(Goncharov and Thrane) published in Phys. Rev. D
July, 2018: Inferring the population properties of binary neutron stars with gravitational-wave measurements of spin
(Zhu, Thrane, Osłowski, Levin, and Lasky) published in Phys. Rev. D
June, 2018: The cosmic gravitational wave symphony | Sylvia Biscoveanu
May, 2018: A Search for Tensor, Vector, and Scalar Polarizations in the Stochastic Gravitational-Wave Background
published in Phys. Rev. Lett
April, 2018: The optimal search for an astrophysical gravitational-wave background
(Smith and Thrane) published in Phys. Rev. X
See also: Viewpoint: Listening for the Cosmic Hum of Black Holes
April, 2018: Australian scientists pioneer new way to hear black holes colliding across the universe
with Sylvia Biscoveanu and Rory Smith (credit: ABC).
Here's what two black holes smashing into each other sounds like
(credit: The Age)
April, 2018: Measuring the binary black hole mass spectrum with an astrophysically motivated parameterization
(Talbot and Thrane) published in Astrophys. J.
Filming for an upcoming media release at the new OzStar supercomputer with Rory Smith and Sylvia Biscoveanu (credit: Yeshe Fenner).
March, 2018: Gravitational waves attract US talent
with Sylvia Biscoveanu.
December, 2017: Tests of General Relativity with the Stochastic Gravitational-Wave Background
(Callister et al.) published in Phys. Rev X
October, 2017: Challenges testing the no-hair theorem with gravitational waves
(Thrane, Lasky, & Levin) published in Phys. Rev. D
October, 2017: GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
, A gravitational-wave standard siren measurement of the Hubble constant
, Gravitational Waves and Gamma-Rays from a Binary Neutron Star Merger: GW170817 and GRB 170817A
, GW170817: Implications for the Stochastic Gravitational-Wave Background from Compact Binary Coalescences
, Search for post-merger gravitational waves from the remnant of the binary neutron star merger GW170817
October, 2017: Nobel Prize in Physics: Australians helped in gravitational waves research
An award with real gravity: how gravitational waves attracted a Nobel Prize
with Yuri Levin and Paul Lasky. The Monash gravity team celebrates the 2017 Nobel Prize for decisive contributions to the LIGO detector and the observation of gravitational waves...with cake (credit: Steve Morton).
July, 2017: Determining the population properties of spinning black holes
(Talbot & Thrane) published in Phys. Rev. D
Team OzGrav in official hoodies (credit: Agustin Schiffrin).
Posing with a Permian mesosaurus
(credit: Steve Morton).
Gravitational waves detected from GW1710104
: press release
, "A new discovery of gravitational waves has black holes in a spin"
May, 2017: Gravitational Waves from Orphan Memory
(McNeill, Thrane, Lasky) published in Phys. Rev. Lett.
See also this popular science articles in New Scientist
, Science Alert
, Eureka Alert
, and Gizmodo
April, 2017: Suspending test masses in terrestrial millihertz gravitational-wave detectors: a case study with a magnetic assisted torsion pendulum
(Thrane, Anderson, Levin, Turner) published in Class. Quant. Grav
April, 2017: Validating gravitational-wave detections: The Advanced LIGO hardware injection system
(Biwer et al.) published in Phys. Rev. D
March, 2017: Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run
(LIGO/Virgo) and Directional limits on persistent gravitational waves from Advanced LIGO's first observing run
(LIGO/Virgo) published for publication in PRL: isotropcic
Gravitational waves featured on "Beyond the Lab
" (featuring yours truly and Janna Levin among others).
October, 2016: Postdoctoral Research Fellow in Astrophysics
: new OzGrav positions open at Monash.
October, 2016: "Subtraction of correlated noise in global networks of gravitational-wave interferometers"
(with Coughlin et al.) published in CQG
I am delighted to be part of The ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav)
Established at the Swinburne University of Technology, OzGrav will explore the extreme physics of black holes and warped spacetime, inspiring the next generation of Australian scientists and engineers.
Researchers at this Centre, led by Professor Matthew Bailes, will build on decades of Australian investment in gravitational wave and pulsar science, coalescing research activities into a focused national programme.
August 2016: Detecting gravitational-wave memory with LIGO: implications of GW150914
(P D Lasky, E Thrane, Y Levin, J Blackman, and Y Chen) published as an Editors' Suggestion in Phys. Rev. Lett
"The limits of astrophysics with gravitational wave backgrounds
" (with Callister et al.) published in Phys. Rev X
Chris Whittle featured in The Australian
"Astronomers excited by 2nd gravitational wave discovery
" on ABC News Breakfast.
LIGO observes another binary black hole: "GW151226: Observation of Gravitational Waves from a 22-Solar-Mass Binary Black Hole Coalescence
Read Paul Lasky's take on the discovery in The Conversation
nomination photo for a Faculty of Science teaching award with Theo Hughes, Michael Morgan, and Jasmina Lazendic-Galloway.
ARC interview for OzGrav: Centre of Excellence for Gravitational Wave Discovery (with Daniel Shaddock, David McClelland, Matthew Bailes, Susan Scott, Peter Veitch, Aleksander Subic, and Tania Bezzobs.
I am proud to share the Special Breakthrough Prize in Fundamental Physics
with my LIGO-Virgo colleagues!
February, 2016: "Gravitational wave discovered"
(a public talk with Yuri Levin).
February, 2016: "Observation of Gravitational Waves from a Binary Black Hole Merger." LIGO detects gravitational waves.
The Monash LIGO team is featured in the Sydney Morning Herald
("Einstein GW150914" by Brynley Pearlston.)
See also: "GW150914: Implications for the stochastic gravitational wave background from binary black holes
" published in Phys. Rev. Lett
For some lighter media coverage of GW150914, here's my cameo
on The Project.
I have been awarded a 2015 Future Fellowship
from the Australian Research Council for "Gravitational-wave astronomy: detection and beyond."
December, 2015: "Detectability of gravitational waves from high-redshift binaries
" (Rosado et al.) published in Phys. Rev. Lett.
"Gravitational-wave cosmology across 29 decades in frequency
" (with Lasky et al.) published in Phys. Rev. X
A busy month for physics media! I appeared with Paul Lasky on The Science Show
with Robyn Williams. Later in the month, I appeared on Catalyst
to speak about gravitational waves.
October, 2015: "Detecting gravitational-wave transients at five sigma: a hierarchical approach"
(Thrane and Coughlin) published in Phys. Rev. Lett
October, 2015: Takaaki Kajita wins the Nobel Prize in Physics.
October, 2015: Gravitational waves on Science Cafe
: my appearance on the Young Scientists of Australia podcast.
September, 2015: Mock data and science challenge for detecting an astrophysical stochastic gravitational-wave background with Advanced LIGO and Advanced Virgo
published in Phys. Rev. D
Open Day at Monash (credit: Steve Morton)!
LIGO S6 data is publicly available here
"Gravitational wave explorer seeks light of merging dead stars" appears in Monash Memo
June, 2015: All-sky, narrowband, gravitational-wave radiometry with folded data
(Thrane, Mitra, Christensen, Mandic, and Ain) published in Phys. Rev. D
Cool picture taken as I was leaving the Physics & Astronomy building (credit: Steve Morton):
May, 2015: Detecting very long-lived gravitational-wave transients lasting hours to weeks
(Thrane, Mandic, and Christensen) published in Phys. Rev. D
March, 2015: The detectability of eccentric compact binary coalescences with advanced gravitational-wave detectors
(M Coughlin, P Meyers, E Thrane, J Luo, and N Christensen) published in Phys. Rev. D
February, 2015: Searching for stochastic gravitational waves using data from the two co-located LIGO Hanford detectors
(LIGO & Virgo) is to be featured as part of the Phys. Rev. D Kaleidoscope
I have joined the Physics
faculty at Monash University
in Melbourne, Australia.