A Thousand Days After the Merger: Continued X-Ray Emission From gw170817

Authors

E. Troja, University of Maryland
H. van Eerten, University of Bath
Bing Zhang, University of Nevada, Las VegasFollow
G. Ryan, University of Maryland
L. Piro, INAF – Istituto di Astrofisica e Planetologia Spaziali
R. Ricci, INAF – Istituto di Radioastronomia
B. O'Connor, University of Maryland
M. H. Wieringa, CSIRO Astronomy and Space Science
S. B. Cenko, NASA Goddard Space Flight Center
T. Sakamoto, Aoyama Gakuin University

Document Type

Article

Publication Date

10-12-2020

Publication Title

Monthly Notices of the Royal Astronomical Society

Volume

498

Issue

4

First page number:

5643

Last page number:

5651

Abstract

Recent observations with the Chandra X-ray telescope continue to detect X-ray emission from the transient GW170817. In a total exposure of 96.6 ks, performed between 2020 March 9 and 16 (935–942 d after the merger), a total of 8 photons are measured at the source position, corresponding to a significance of ≈5σ. Radio monitoring with the Australian Telescope Compact Array (ATCA) shows instead that the source has faded below our detection threshold... (See full abstract in article).

Keywords

Gravitational waves; Gamma-ray burst: Individual: Grb170817a; Neutron star mergers

Disciplines

Stars, Interstellar Medium and the Galaxy

Language

English

Repository Citation

Troja, E., van Eerten, H., Zhang, B., Ryan, G., Piro, L., Ricci, R., O'Connor, B., Wieringa, M. H., Cenko, S. B., Sakamoto, T. (2020). A Thousand Days After the Merger: Continued X-Ray Emission From gw170817. Monthly Notices of the Royal Astronomical Society, 498(4), 5643-5651.
http://dx.doi.org/10.1093/mnras/staa2626