576 Hits in 6.4 sec

Reproducing GW150914: the first observation of gravitational waves from a binary black hole merger [article]

Duncan A. Brown, Karan Vahi, Michela Taufer, Von Welch, Ewa Deelman
2020 arXiv   pre-print
In February 2016, LIGO and Virgo announced the first observation of gravitational waves from a binary black hole merger, known as GW150914.  ...  In this paper, we attempt to reproduce the result from the compact binary coalescence search presented in the GW150914 discovery paper using publicly available code executed primarily on the Open Science  ...  ACKNOWLEDGMENT We would like to thank Mats Rynge for providing input on configuring the pipeline to run on OSG, Alexander Nitz and Maria Alessandra Papa for providing the script used to make the PyCBC  ... 
arXiv:2010.07244v1 fatcat:nmdl7nwkxffchnct5u4kgh3aji

When and where did GW150914 form?

A. Lamberts, S. Garrison-Kimmel, D. R. Clausen, P. F. Hopkins
2016 Monthly Notices of the Royal Astronomical Society: Letters  
The recent LIGO detection of gravitational waves (GW150914), likely originating from the merger of two ∼ 30 M_ black holes suggests progenitor stars of low metallicity ([Z/Z_] ≲ 0.3), constraining when  ...  We combine estimates of galaxy properties (metallicity, star formation rate and merger rate) across cosmic time to predict the low redshift black hole - black hole merger rate as a function of present  ...  INTRODUCTION On 2015 September 14, both detectors from the Laser Interferometer Gravitational-Wave Observatory (LIGO) made the first direct detection of gravitational waves (Abbott et al. 2016b ).  ... 
doi:10.1093/mnrasl/slw152 fatcat:s7px5ia4izebbkojocptyxrs4y

Revisiting the ringdown of GW150914 [article]

Maximiliano Isi, Will M. Farr
2022 arXiv   pre-print
We examine recent claims that evidence for an overtone in the ringdown of the GW150914 binary black hole merger was a result of noise anomalies.  ...  a superposition of quasinormal modes of the remnant black hole.  ...  strain, the gravitational-wave emission from a binary black hole should be well described by a superposition of quasinormal modes with frequencies and damping rates of the remnant black hole (and not  ... 
arXiv:2202.02941v2 fatcat:funjnzktgbap7dlqag6khk6npu

Did GW150914 produce a rotating gravastar?

Cecilia Chirenti, Luciano Rezzolla
2016 Physical Review D  
The interferometric LIGO detectors have recently measured the first direct gravitational-wave signal from what has been interpreted as the inspiral, merger and ringdown of a binary system of black holes  ...  The signal-to-noise ratio of the measured signal is large enough to leave little doubt that it does refer to the inspiral of two massive and ultracompact objects, whose merger yields a rotating black hole  ...  It it is a pleasure to thank E. Barausse, V. Ferrari, K. Kokkotas, and P. Pani for useful discus-  ... 
doi:10.1103/physrevd.94.084016 fatcat:pgx5xwvtd5gpxjsud2kak7gr6e


Carl L. Rodriguez, Carl-Johan Haster, Sourav Chatterjee, Vicky Kalogera, Frederic A. Rasio
2016 Astrophysical Journal Letters  
Understanding the contribution of dynamics to the binary black hole merger problem is a critical step in unlocking the full potential of gravitational-wave astronomy.  ...  We explore the possibility that GW150914, the binary black hole merger recently detected by Advanced LIGO, was formed by gravitational interactions in the core of a dense star cluster.  ...  INTRODUCTION The first detection of gravitational waves from merging black holes (Abbott et al. 2016a ) has begun a new era of astronomy.  ... 
doi:10.3847/2041-8205/824/1/l8 fatcat:rn2mymm3p5eh7nlg62t74qklbq

Single progenitor model for GW150914 and GW170104

Daniel J. D'Orazio, Abraham Loeb
2018 Physical Review D  
However, the gravitational wave (GW) events GW150914 and GW170104, detected by the Laser Interferometer Gravitational Wave Observatory (LIGO) to be the result of merging, ~60 solar mass binary black holes  ...  Motivated by the intriguing possibility of an EM counterpart to BBH mergers, we construct a model that can reproduce the observed EM and GW signals for GW150914- and GW170104-like events, from a single-star  ...  This work was supported in part by the Black Hole Initiative, which is funded by a grant from the John Templeton Foundation.  ... 
doi:10.1103/physrevd.97.083008 fatcat:itqiipaxovf3xedk5hmyvlajum

Constraining noncommutative spacetime from GW150914

Archil Kobakhidze, Cyril Lagger, Adrian Manning
2016 Physical Review D  
We show that the leading non-commutative correction to the phase of the gravitational waves produced by a binary system appears at the 2nd order of the post- Newtonian expansion.  ...  The gravitational wave signal GW150914, recently detected by LIGO and Virgo collaborations, is used to place a bound on the scale of quantum fuzziness of non-commutative space-time.  ...  NOTE ADDED During the preparation of this paper, the gravitational wave signal GW151226 detected by the LIGO detectors was announced [60] . The bound on space-time non-commutativity  ... 
doi:10.1103/physrevd.94.064033 fatcat:7lj6rbnpfba45bcarc3woppui4

The black hole merger event GW150914 within a modified theory of general relativity

P. O. Hess
2016 Monthly notices of the Royal Astronomical Society  
In February 2016 the first observation of gravitational waves were reported.  ...  The source of this event, denoted as GW150914, was identified as the merger of two black holes with a about 30 solar masses each, at a distance of approximately 400Mpc.  ...  Hess acknowledges the financial support from DGAPA-PAPIIT (IN100315). He also acknowledges the hospitality at the Frankfurt Institute for Adevances Studies, where part of the work has been realized.  ... 
doi:10.1093/mnras/stw1919 fatcat:jql4lk6t3fa3blodrnqygw42sq

Investigating the noise residuals around the gravitational wave event GW150914

Alex B. Nielsen, Alexander H. Nitz, Collin D. Capano, Duncan A. Brown
2019 Journal of Cosmology and Astroparticle Physics  
at the time of the binary black hole merger GW150914.  ...  model binary black hole mergers in general relativity.  ...  ABN and DAB thank Andrew Jackson, Hao Liu and Pavel Naselsky for helpful discussions and the 2017 Kavli Summer Program in Astrophysics at the Niels Bohr Institute in Copenhagen and DARK University of Copenhagen  ... 
doi:10.1088/1475-7516/2019/02/019 fatcat:7kzaf6ihs5bgfkx3xkxhzx22ai

Looking for ancillary signals around GW150914

Rahul Maroju, Sristi Ram Dyuthi, Anumandla Sukrutha, Shantanu Desai
2019 Journal of Cosmology and Astroparticle Physics  
around GW150914, for the same time lag between the two LIGO detectors as the gravitational wave signal.  ...  We replicated the procedure in Liu and Jackson (arXiv:1609.08346), who had found evidence for a low amplitude signal in the vicinity of GW150914.  ...  Acknowledgments This research has made use of data, software and/or web tools obtained from the Gravitational Wave Open Science Center (, a service of LIGO Laboratory, the  ... 
doi:10.1088/1475-7516/2019/04/007 fatcat:pbegd4y4fjgufgc6el3rvy4nhe

GW150914: spin-based constraints on the merger time of the progenitor system

Doron Kushnir, Matias Zaldarriaga, Juna A. Kollmeier, Roni Waldman
2016 Monthly notices of the Royal Astronomical Society  
We derive a simple model for the observed spin in the case that the progenitor system was a field binary composed of a black hole (BH) and a Wolf-Rayet star and explore the implications of the observed  ...  The spin observation allows us to place a lower limit for the delay time between the formation of the BH+BH binary and the actual merger, t_merge.  ...  M.Z. is supported in part by the NSF grants PHY-1213563, AST-1409709 and PHY-1521097. JAK gratefully acknowledges support from the Institute for Advanced Study.  ... 
doi:10.1093/mnras/stw1684 fatcat:tofexwsaijfjra7qp4uhrwzhqy

GW150914: The Birth of Gravitational Wave Astronomy

Mainak Singha, Ottewill
2016 Zenodo  
That is reasonable due to high noise that the LIGO detectors is unable to sense gravitational wave strain from the "Binary Black Holes" (BBH) or other astrophysical sources.  ...  waveforms which is accounted for.We perform a test to check the consistency of the data with the predicted leastdamped QNM of the remnant black hole.  ...  Appendix A Appendix import numpy as np from scipy import signal from scipy.interpolate import interp1d from scipy.signal import butter, filtfilt, iirdesign, zpk2tf, freqz # the ipython magic below must  ... 
doi:10.5281/zenodo.3866442 fatcat:7wjnt62apzealhzgdfbnvygndy

Evolution of dwarf galaxies hosting GW150914-like events

S Marassi, L Graziani, M Ginolfi, R Schneider, M Mapelli, M Spera, M Alparone
2019 Monthly notices of the Royal Astronomical Society  
Here we present a detailed analysis of the properties and evolution of different dwarf galaxies, candidate to host the coalescence of black hole binary systems (BHB) generating GW150914-like events.  ...  feedback; (iii) a stringent condition for the environments where GW150914-like binaries can form comes from a combination of the accretion history of their DM halos and the radiative feedback in the high  ...  INTRODUCTION With the first detection of the two signals GW150914 and GW151226 (Abbott et al. 2016a,b) the LIGO Collaboration opened a new era of gravitational astronomy relying on gravitational wave  ... 
doi:10.1093/mnras/stz170 fatcat:fjeftpxmyrfkpcr3ows472itt4

Theoretical physics implications of the binary black-hole mergers GW150914 and GW151226

Nicolás Yunes, Kent Yagi, Frans Pretorius
2016 Physical Review D  
The gravitational wave observations GW150914 and GW151226 by Advanced LIGO provide the first opportunity to learn about physics in the extreme gravity environment of coalescing binary black holes.  ...  We also show that GW150914 constrains inferred properties of exotic compact object alternatives to Kerr black holes.  ...  The gravitational wave observations GW150914 and GW151226 by Advanced LIGO provide the first opportunity to learn about physics in the extreme gravity environment of coalescing binary black holes.  ... 
doi:10.1103/physrevd.94.084002 fatcat:ay3fte7il5avvpasxkdmiwai6u

Massive stars in advanced evolutionary stages, and the progenitor of GW150914

Wolf-Rainer Hamann, Lidia Oskinova, Helge Todt, Andreas Sander, Rainer Hainich, Tomer Shenar, Varsha Ramachandran
2016 Proceedings of the International Astronomical Union  
The recent discovery of a gravitational wave from the merging of two black holes of about 30 solar masses each challenges our incomplete understanding of massive stars and their evolution.  ...  Close binaries which avoided early merging could evolve quasi-homogeneously and lead to close compact remnants of relatively high masses that merge within a Hubble time.  ...  Acknowledgements We thank Pablo Marchant for providing the MOB evolutionary tracks.  ... 
doi:10.1017/s1743921317002563 fatcat:6bqtkev6oraivbiifppzagmg7i
« Previous Showing results 1 — 15 out of 576 results