Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Roulet, Javier"'
Autor:
Wadekar, Digvijay, Venumadhav, Tejaswi, Roulet, Javier, Mehta, Ajit Kumar, Zackay, Barak, Mushkin, Jonathan, Zaldarriaga, Matias
Publikováno v:
Phys. Rev. D 110, 044063 (2024)
Nearly all template-based gravitational wave (GW) searches only include the quasi-circular quadrupolar modes of the signals in their templates. Including additional degrees of freedom in the GW templates corresponding to higher-order harmonics, orbit
Externí odkaz:
http://arxiv.org/abs/2405.17400
Autor:
Roulet, Javier, Mushkin, Jonathan, Wadekar, Digvijay, Venumadhav, Tejaswi, Zackay, Barak, Zaldarriaga, Matias
Publikováno v:
Phys. Rev. D 110, 044010 (2024)
We introduce an algorithm to marginalize the likelihood for a gravitational wave signal from a quasi-circular binary merger over its extrinsic parameters, accounting for the effects of higher harmonics and spin-induced precession. The algorithm takes
Externí odkaz:
http://arxiv.org/abs/2404.02435
Autor:
Roulet, Javier, Venumadhav, Tejaswi
This review provides a conceptual and technical survey of methods for parameter estimation of gravitational wave signals in ground-based interferometers such as LIGO and Virgo. We introduce the framework of Bayesian inference and provide an overview
Externí odkaz:
http://arxiv.org/abs/2402.11439
Autor:
Wadekar, Digvijay, Roulet, Javier, Venumadhav, Tejaswi, Mehta, Ajit Kumar, Zackay, Barak, Mushkin, Jonathan, Olsen, Seth, Zaldarriaga, Matias
Nearly all of the previous gravitational wave (GW) searches in the LIGO-Virgo data included GW waveforms with only the dominant quadrupole mode, i.e., omitting higher-order harmonics which are predicted by general relativity. Based on the techniques
Externí odkaz:
http://arxiv.org/abs/2312.06631
Autor:
Mehta, Ajit Kumar, Olsen, Seth, Wadekar, Digvijay, Roulet, Javier, Venumadhav, Tejaswi, Mushkin, Jonathan, Zackay, Barak, Zaldarriaga, Matias
We report the detection of 6 new candidate binary black hole (BBH) merger signals in the publicly released data from the second half of the third observing run (O3b) of advanced LIGO and advanced Virgo. The LIGO-Virgo-KAGRA (LVK) collaboration report
Externí odkaz:
http://arxiv.org/abs/2311.06061
Autor:
Wadekar, Digvijay, Venumadhav, Tejaswi, Mehta, Ajit Kumar, Roulet, Javier, Olsen, Seth, Mushkin, Jonathan, Zackay, Barak, Zaldarriaga, Matias
Publikováno v:
Phys. Rev. D 110, 084035 (2024)
Searches for gravitational wave events use models, or templates, for the signals of interest. The templates used in current searches in the LIGO-Virgo-Kagra (LVK) data model the dominant quadrupole mode $(\ell,|m|)=(2,2)$ of the signals, and omit sub
Externí odkaz:
http://arxiv.org/abs/2310.15233
Publikováno v:
PHYS. REV. D 108, 064059 (2023)
We present IMRPhenomXODE, a new phenomenological frequency-domain waveform approximant for gravitational wave (GW) signals from precessing binary black holes (BBHs) with generic spin configurations. We build upon the success of IMRPhenomXPHM [G. Prat
Externí odkaz:
http://arxiv.org/abs/2306.08774
Autor:
Chia, Horng Sheng, Edwards, Thomas D. P., Wadekar, Digvijay, Zimmerman, Aaron, Olsen, Seth, Roulet, Javier, Venumadhav, Tejaswi, Zackay, Barak, Zaldarriaga, Matias
We report results on the first matched-filtering search for binaries with compact objects having large tidal deformabilities in the LIGO-Virgo gravitational wave (GW) data. The tidal deformability of a body is quantified by the ``Love number" $\Lambd
Externí odkaz:
http://arxiv.org/abs/2306.00050
We present a parameter estimation framework for gravitational wave (GW) signals that brings together several ideas to accelerate the inference process. First, we use the relative binning algorithm to evaluate the signal-to-noise-ratio timeseries in e
Externí odkaz:
http://arxiv.org/abs/2210.16278
Autor:
Roulet, Javier, Olsen, Seth, Mushkin, Jonathan, Islam, Tousif, Venumadhav, Tejaswi, Zackay, Barak, Zaldarriaga, Matias
Quasicircular binary black hole mergers are described by 15 parameters, of which gravitational wave observations can typically constrain only $\sim 10$ independent combinations to varying degree. In this work, we devise coordinates that remove correl
Externí odkaz:
http://arxiv.org/abs/2207.03508