Language:

GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M

Astrophysical journal. Letters, 2020-03, Vol.892 (1), p.L3 [Peer Reviewed Journal]

2020. The Author(s). Published by the American Astronomical Society. ;Copyright IOP Publishing Mar 20, 2020 ;ISSN: 2041-8205 ;ISSN: 2041-8213 ;EISSN: 2041-8213 ;DOI: 10.3847/2041-8213/ab75f5

Full text available

Citations Cited by

Actions
1. Add to My Research
2. Remove from My Research
3. E-mail
4. Print
5. Permalink
6. Citation
7. EasyBib
8. EndNote
9. RefWorks
10. Delicious
11. Export RIS
12. Export BibTeX

Title:
GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M
Author: Abbott, R. ; Abraham, S. ; Amato, A. ; Ballmer, S. W. ; Basti, A. ; Beniwal, D. ; Bhandare, R. ; Briggs, J. H. ; Buonanno, A. ; Cabero, M. ; Cao, J. ; Caudill, S. ; Chan, M. ; Cheong, C. K. ; Chincarini, A. ; Chung, S. ; Ciolfi, R. ; Corban, P. ; Corsi, A. ; Cortese, S. ; Costa, C. A. ; Cowart, M. J. ; Croquette, M. ; D'Antonio, S. ; Datrier, L. E. H. ; Dent, T. ; Dhurandhar, S. ; Palma, I. Di ; Downes, T. P. ; Estevez, D. ; Fan, X. ; Fiori, I. ; Fittipaldi, R. ; Fiumara, V. ; Freise, A. ; Fulda, P. ; Gabbard, H. A. ; Gammaitoni, L. ; Gayathri, V. ; George, R. ; González, G. ; Haegel, L. ; Hannam, M. D. ; Hannuksela, O. A. ; Harms, J. ; Hendry, M. ; Hild, S. ; Hoy, C. G. ; Idzkowski, B. ; Junker, J. ; Kim, W. ; Kozak, D. B. ; Laghi, D. ; Lane, B. B. ; Levin, Y. ; Losurdo, G. ; Lough, J. D. ; Lower, M. E. ; Martelli, F. ; Meadors, G. D. ; Mehmet, M. ; Mercer, R. A. ; Mereni, L. ; Michel, C. ; Mills, J. C. ; Milovich-Goff, M. C. ; Moreno, G. ; Page, M. A. ; Pang, P. T. H. ; Paoletti, F. ; Phukon, K. S. ; Pirello, M. ; Porter, E. K. ; Prajapati, A. K. ; Prestegard, T. ; Punturo, M. ; Pürrer, M. ; Razzano, M. ; Richardson, C. J. ; Rosofsky, S. G. ; Rüdiger, A. ; Samajdar, A. ; Scheel, M. ; Schreiber, E. ; Schutz, B. F. ; Shukla, K. ; ShyamSundar, S. ; Somala, S. ; Sunil, S. ; Tapia, A. ; Toland, K. ; Trovato, A. ; Tsang, K. W. ; Vass, S. ; Venugopalan, G. ; Verkindt, D. ; Wang, S. ; Ward, R. L. ; Williamson, A. R. ; Wittel, H.
Subjects: ASTRONOMY AND ASTROPHYSICS ; Binary stars ; Black holes ; Coalescence ; Coalescing ; Gravitational waves ; Neutron stars ; Neutrons ; Noise ; Parameter estimation ; Signal to noise ratio
Is Part Of: Astrophysical journal. Letters, 2020-03, Vol.892 (1), p.L3
Description: On 2019 April 25, the LIGO Livingston detector observed a compact binary coalescence with signal-to-noise ratio 12.9. The Virgo detector was also taking data that did not contribute to detection due to a low signal-to-noise ratio, but were used for subsequent parameter estimation. The 90% credible intervals for the component masses range from to ( - if we restrict the dimensionless component spin magnitudes to be smaller than 0.05). These mass parameters are consistent with the individual binary components being neutron stars. However, both the source-frame chirp mass and the total mass of this system are significantly larger than those of any other known binary neutron star (BNS) system. The possibility that one or both binary components of the system are black holes cannot be ruled out from gravitational-wave data. We discuss possible origins of the system based on its inconsistency with the known Galactic BNS population. Under the assumption that the signal was produced by a BNS coalescence, the local rate of neutron star mergers is updated to 250-2810 .
Publisher: Austin: The American Astronomical Society
Language: English
Identifier: ISSN: 2041-8205
ISSN: 2041-8213
EISSN: 2041-8213
DOI: 10.3847/2041-8213/ab75f5
Source: Open Access: IOP Publishing Free Content
IOPscience (Open Access)
DOAJ (Directory of Open Access Journals)
Alma/SFX Local Collection

Back to results list


INSPIRE LIBRARY - TON DUC THANG UNIVERSITY	(84-028) 37 755 057	Feedback
19 Nguyen Huu Tho St. Dist.7, HCM	thuvien@tdtu.edu.vn	Feedback

GW190425: Observation of a Compact Binary Coalescence with Total Mass ∼ 3.4 M

2020. The Author(s). Published by the American Astronomical Society. ;Copyright IOP Publishing Mar 20, 2020 ;ISSN: 2041-8205 ;ISSN: 2041-8213 ;EISSN: 2041-8213 ;DOI: 10.3847/2041-8213/ab75f5

Searching Remote Databases, Please Wait