Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Kaze W K Wong"'
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 272, Iss 1, p 2 (2024)
We present AspGap, a new approach to inferring stellar labels from the low-resolution Gaia XP spectra, including precise [ α /M] estimates—the first time these are obtained by such an approach. AspGap is a neural-network-based regression model tra
Externí odkaz:
https://doaj.org/article/9b576ab6d55b4fcf9e09d9c300f2ff52
Publikováno v:
The Astrophysical Journal, Vol 958, Iss 2, p 129 (2023)
We present a lightweight, flexible, and high-performance framework for inferring the properties of gravitational-wave events. By combining likelihood heterodyning, automatically differentiable, and accelerator-compatible waveforms, and gradient-based
Externí odkaz:
https://doaj.org/article/dc6cd5e324e54659978d20ce3b2861b7
Publikováno v:
The Astrophysical Journal, Vol 950, Iss 2, p 181 (2023)
One promising way to extract information about stellar astrophysics from a gravitational-wave catalog is to compare the catalog to the outputs of stellar population synthesis modeling with varying physical assumptions. The parameter space of physical
Externí odkaz:
https://doaj.org/article/b7cc018c58e7494f998993135b60033f
Autor:
Francisco Villaescusa-Navarro, Shy Genel, Daniel Anglés-Alcázar, Lucia A. Perez, Pablo Villanueva-Domingo, Digvijay Wadekar, Helen Shao, Faizan G. Mohammad, Sultan Hassan, Emily Moser, Erwin T. Lau, Luis Fernando Machado Poletti Valle, Andrina Nicola, Leander Thiele, Yongseok Jo, Oliver H. E. Philcox, Benjamin D. Oppenheimer, Megan Tillman, ChangHoon Hahn, Neerav Kaushal, Alice Pisani, Matthew Gebhardt, Ana Maria Delgado, Joyce Caliendo, Christina Kreisch, Kaze W. K. Wong, William R. Coulton, Michael Eickenberg, Gabriele Parimbelli, Yueying Ni, Ulrich P. Steinwandel, Valentina La Torre, Romeel Dave, Nicholas Battaglia, Daisuke Nagai, David N. Spergel, Lars Hernquist, Blakesley Burkhart, Desika Narayanan, Benjamin Wandelt, Rachel S. Somerville, Greg L. Bryan, Matteo Viel, Yin Li, Vid Irsic, Katarina Kraljic, Federico Marinacci, Mark Vogelsberger
Publikováno v:
The Astrophysical Journal Supplement Series, Vol 265, Iss 2, p 54 (2023)
The Cosmology and Astrophysics with Machine Learning Simulations (CAMELS) project was developed to combine cosmology with astrophysics through thousands of cosmological hydrodynamic simulations and machine learning. CAMELS contains 4233 cosmological
Externí odkaz:
https://doaj.org/article/3325626d077745a3abeb937b84af2f24
Autor:
Mark Ho-Yeuk Cheung, Vishal Baibhav, Emanuele Berti, Vitor Cardoso, Gregorio Carullo, Roberto Cotesta, Walter Del Pozzo, Francisco Duque, Thomas Helfer, Estuti Shukla, Kaze W. K. Wong
Publikováno v:
Physical Review Letters. 130
We report evidence for nonlinear modes in the ringdown stage of the gravitational waveform produced by the merger of two comparable-mass black holes. We consider both the coalescence of black hole binaries in quasicircular orbits and high-energy, hea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a776d5356294ae9ec1db4f2a15c1313
https://doi.org/10.1103/physrevlett.130.081401
https://doi.org/10.1103/physrevlett.130.081401
Publikováno v:
Physical Review D. 106
Gravitational-wave population studies have become more important in gravitational-wave astronomy because of the rapid growth of the observed catalog. In recent studies, emulators based on different machine learning techniques are used to emulate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33c049fbab572284ee1c6837e4c8aebf
https://doi.org/10.1103/physrevd.106.083014
https://doi.org/10.1103/physrevd.106.083014
Inferring the Intermediate-mass Black Hole Number Density from Gravitational-wave Lensing Statistics
The population properties of intermediate-mass black holes remain largely unknown, and understanding their distribution could provide a missing link in the formation of supermassive black holes and galaxies. Gravitational-wave observations can help f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ee49c133585eab00ac64c3a2a071794
https://lirias.kuleuven.be/handle/20.500.12942/718141
https://lirias.kuleuven.be/handle/20.500.12942/718141
Autor:
Gabriele Franciolini, Vishal Baibhav, Valerio De Luca, Ken K. Y. Ng, Kaze W. K. Wong, Emanuele Berti, Paolo Pani, Antonio Riotto, Salvatore Vitale
With several dozen binary black hole events detected by LIGO/Virgo to date and many more expected in the next few years, gravitational-wave astronomy is shifting from individual-event analyses to population studies. Using the GWTC-2 catalog, we perfo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f76c58d7513738463825a0432c24499
http://hdl.handle.net/11573/1643057
http://hdl.handle.net/11573/1643057
Autor:
Kareem El-Badry, Hans-Walter Rix, Eliot Quataert, Andrew W Howard, Howard Isaacson, Jim Fuller, Keith Hawkins, Katelyn Breivik, Kaze W K Wong, Antonio C Rodriguez, Charlie Conroy, Sahar Shahaf, Tsevi Mazeh, Frédéric Arenou, Kevin B Burdge, Dolev Bashi, Simchon Faigler, Daniel R Weisz, Rhys Seeburger, Silvia Almada Monter, Jennifer Wojno
We report discovery of a bright, nearby ($G = 13.8;\,\,d = 480\,\rm pc$) Sun-like star orbiting a dark object. We identified the system as a black hole candidate via its astrometric orbital solution from the Gaia mission. Radial velocities validated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ccb12d5d0ae2dbe8171cd675ac55ecd
Despite their potential role as massive seeds for quasars, in dwarf galaxy feedback, and in tidal disruption events, the observational evidence for intermediate-mass black holes (IMBHs) is scarce. LISA may observe stellar-mass black hole binaries orb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::50192ad59ded99306dc9c52df20fba95
http://arxiv.org/abs/2109.08154
http://arxiv.org/abs/2109.08154