Related papers: On GW170817 and the Galactic Binary Neutron Star P…

Did Binary Neutron Star Merger GW170817 Leave Behind A Long-lived Neutron Star?

We consider the observational implications of the binary neutron star (BNS) merger GW170817 leaving behind a rapidly rotating massive neutron star that launches a relativistic, equatorial outflow as well as a jet. We show that if the…

High Energy Astrophysical Phenomena · Physics 2024-05-31 Marcus DuPont , Andrew MacFadyen

The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars

We report the discovery and monitoring of the near-infrared counterpart (AT2017gfo) of a binary neutron-star merger event detected as a gravitational wave source by Advanced LIGO/Virgo (GW170817) and as a short gamma-ray burst by Fermi/GBM…

High Energy Astrophysical Phenomena · Physics 2017-10-17 N. R. Tanvir , A. J. Levan , C. Gonzalez-Fernandez , O. Korobkin , I. Mandel , S. Rosswog , J. Hjorth , P. D'Avanzo , A. S. Fruchter , C. L. Fryer , T. Kangas , B. Milvang-Jensen , S. Rosetti , D. Steeghs , R. T. Wollaeger , Z. Cano , C. M. Copperwheat , S. Covino , V. D'Elia , A. de Ugarte Postigo , P. A. Evans , W. P. Even , S. Fairhurst , R. Figuera Jaimes , C. J. Fontes , Y. I. Fujii , J. P. U. Fynbo , B. P. Gompertz , J. Greiner , G. Hodosan , M. J. Irwin , P. Jakobsson , U. G. Jorgensen , D. A. Kann , J. D. Lyman , D. Malesani , R. G. McMahon , A. Melandri , P. T. O'Brien , J. P. Osborne , E. Palazzi , D. A. Perley , E. Pian , S. Piranomonte , M. Rabus , E. Rol , A. Rowlinson , S. Schulze , P. Sutton , C. C. Thoene , K. Ulaczyk , D. Watson , K. Wiersema , R. A. M. J. Wijers

Prospects for multi-messenger detection of binary neutron star mergers in the fourth LIGO-Virgo-KAGRA observing run

The joint detection of GW170817 and GRB 170817A opened the era of multi-messenger astronomy with gravitational waves (GWs) and provided the first direct probe that at least some binary neutron star (BNS) mergers are progenitors of short…

High Energy Astrophysical Phenomena · Physics 2022-06-14 Barbara Patricelli , Maria Grazia Bernardini , Michela Mapelli , Paolo D'Avanzo , Filippo Santoliquido , Giancarlo Cella , Massimiliano Razzano , Elena Cuoco

What we can learn about compact binary mergers from their kilonova signals?

Compact binary mergers are sources of gravitational waves, and can be accompanied by electromagnetic signals. We discuss the possible features in the kilonova emissions which may help distinguish the black hole - neutron star mergers from…

High Energy Astrophysical Phenomena · Physics 2024-03-25 Agnieszka Janiuk , Joseph Saji , Gerardo Urrutia

A magnetically driven origin for the low luminosity GRB 170817A associated with GW170817

The gamma-ray burst GRB 170817A associated with GW170817 is subluminous and subenergetic compared with other typical short GRBs. It may be due to a relativistic jet viewed off-axis, or a structured jet, or cocoon emission. Giant flares from…

High Energy Astrophysical Phenomena · Physics 2018-06-13 H. Tong , C. Yu , L. Huang

Magnetically inspired explosive outflows from neutron-star mergers

Binary neutron-star mergers have long been associated with short-duration gamma-ray bursts (GRBs). This connection was confirmed with the first coincident detection of gravitational waves together with electromagnetic radiation from…

High Energy Astrophysical Phenomena · Physics 2019-10-11 Antonios Nathanail , Oliver Porth , Luciano Rezzolla

Multimessenger Parameter Estimation of GW170817

We combine gravitational wave (GW) and electromagnetic (EM) data to perform a Bayesian parameter estimation of the binary neutron star (NS) merger GW170817. The EM likelihood is constructed from a fit to a large number of numerical…

High Energy Astrophysical Phenomena · Physics 2019-04-15 David Radice , Liang Dai

Prompt gamma-ray emission of GRB 170817A associated to GW 170817: A consistent picture

The short GRB 170817A associated to the first detection of gravitation waves from a Binary Neutron Star (BNS) merger was in many ways unusual. Possible explanations are emission from a cocoon or cocoon break out, off-axis view of a…

High Energy Astrophysical Phenomena · Physics 2018-06-22 Houri Ziaeepour

J-GEM observations of an electromagnetic counterpart to the neutron star merger GW170817

The first detected gravitational wave from a neutron star merger was GW170817. In this study, we present J-GEM follow-up observations of SSS17a, an electromagnetic counterpart of GW170817. SSS17a shows a 2.5-mag decline in the $z$-band from…

High Energy Astrophysical Phenomena · Physics 2017-10-17 Yousuke Utsumi , Masaomi Tanaka , Nozomu Tominaga , Michitoshi Yoshida , Sudhanshu Barway , Takahiro Nagayama , Tetsuya Zenko , Kentaro Aoki , Takuya Fujiyoshi , Hisanori Furusawa , Koji S. Kawabata , Shintaro Koshida , Chien-Hsiu Lee , Tomoki Morokuma , Kentaro Motohara , Fumiaki Nakata , Ryou Ohsawa , Kouji Ohta , Hirofumi Okita , Akito Tajitsu , Ichi Tanaka , Tsuyoshi Terai , Naoki Yasuda , Fumio Abe , Yuichiro Asakura , Ian A. Bond , Shota Miyazaki , Takahiro Sumi , Paul J. Tristram , Satoshi Honda , Ryosuke Itoh , Yoichi Itoh , Miho Kawabata , Kumiko Morihana , Hiroki Nagashima , Tatsuya Nakaoka , Tomohito Ohshima , Jun Takahashi , Masaki Takayama , Wako Aoki , Stefan Baar , Mamoru Doi , François Finet , Nobuyuki Kanda , Nobuyuki Kawai , Ji Hoon Kim , Daisuke Kuroda , Wei Liu , Kazuya Matsubayashi , Katsuhiro L. Murata , Hiroshi Nagai , Tomoki Saito , Yoshihiko Saito , Shigeyuki Sako , Yuichiro Sekiguchi , Yoichi Tamura , Masayuki Tanaka , Makoto Uemura , Masaki S. Yamaguchi , the J-GEM collaboration

Dynamical ejecta and nucleosynthetic yields from eccentric binary neutron-star mergers

With the recent advent of multi-messenger gravitational-wave astronomy and in anticipation of more sensitive, next-generation gravitational-wave detectors, we investigate the dynamics, gravitational-wave emission, and nucleosynthetic yields…

General Relativity and Quantum Cosmology · Physics 2018-12-07 L. Jens Papenfort , Roman Gold , Luciano Rezzolla

The environment of the binary neutron star merger GW170817

We present Hubble Space Telescope and Chandra imaging, combined with Very Large Telescope MUSE integral field spectroscopy of the counterpart and host galaxy of the first binary neutron star merger detected via gravitational wave emission…

High Energy Astrophysical Phenomena · Physics 2017-10-17 A. J. Levan , J. D. Lyman , N. R. Tanvir , J. Hjorth , I. Mandel , E. R. Stanway , D. Steeghs , A. S. Fruchter , E. Troja , S. L Schrøder , K. Wiersema , S. H. Bruun , Z. Cano , S. B. Cenko , A de Ugarte Postigo , P. Evans , S. Fairhurst , O. D. Fox , J. P. U. Fynbo , B. Gompertz , J. Greiner , M. Im , L. Izzo , P. Jakobsson , T. Kangas , H. G. Khandrika , A. Y. Lien , D. Malesani , P. O'Brien , J. P. Osborne , E. Plazzi , E. Pian , D. A. Perley , S. Rosswog , R. E. Ryan , S. Schulze , P. Sutton , C. C. Thöne , D. J. Watson , R. A. M. J. Wijers

Follow up of GW170817 and its electromagnetic counterpart by Australian-led observing programs

The discovery of the first electromagnetic counterpart to a gravitational wave signal has generated follow-up observations by over 50 facilities world-wide, ushering in the new era of multi-messenger astronomy. In this paper, we present…

High Energy Astrophysical Phenomena · Physics 2017-12-27 I. Andreoni , K. Ackley , J. Cooke , A. Acharyya , J. R. Allison , G. E. Anderson , M. C. B. Ashley , D. Baade , M. Bailes , K. Bannister , A. Beardsley , M. S. Bessell , F. Bian , P. A. Bland , M. Boer , T. Booler , A. Brandeker , I. S. Brown , D. Buckley , S. -W. Chang , D. M. Coward , S. Crawford , H. Crisp , B. Crosse , A. Cucchiara , M. Cupák , J. S. de Gois , A. Deller , H. A. R. Devillepoix , D. Dobie , E. Elmer , D. Emrich , W. Farah , T. J. Farrell , T. Franzen , B. M. Gaensler , D. K. Galloway , B. Gendre , T. Giblin , A. Goobar , J. Green , P. J. Hancock , B. A. D. Hartig , E. J. Howell , L. Horsley , A. Hotan , R. M. Howie , L. Hu , Y. Hu , C. W. James , S. Johnston , M. Johnston-Hollitt , D. L. Kaplan , M. Kasliwal , E. F. Keane , D. Kenney , A. Klotz , R. Lau , R. Laugier , E. Lenc , X. Li , E. Liang , C. Lidman , L. C. Luvaul , C. Lynch , B. Ma , D. Macpherson , J. Mao , D. E. McClelland , C. McCully , A. Möller , M. F. Morales , D. Morris , T. Murphy , K. Noysena , C. A. Onken , N. B. Orange , S. Oslowski , D. Pallot , J. Paxman , S. B. Potter , T. Pritchard , W. Raja , R. Ridden-Harper , E. Romero-Colmenero , E. M. Sadler , E. K. Sansom , R. A. Scalzo , B. P. Schmidt , S. M. Scott , N. Seghouani , Z. Shang , R. M. Shannon , L. Shao , M. M. Shara , R. Sharp , M. Sokolowski , J. Sollerman , J. Staff , K. Steele , T. Sun , N. B. Suntzeff , C. Tao , S. Tingay , M. C. Towner , P. Thierry , C. Trott , B. E. Tucker , P. Väisänen , V. Venkatraman Krishnan , M. Walker , L. Wang , X. Wang , R. Wayth , M. Whiting , A. Williams , T. Williams , C. Wolf , C. Wu , X. Wu , J. Yang , X. Yuan , H. Zhang , J. Zhou , H. Zovaro

Host galaxies and electromagnetic counterparts to binary neutron star mergers across the cosmic time: Detectability of GW170817-like events

The detection of electromagnetic radiation (EM) accompanying the gravitational wave (GW) signal from the binary neutron star (BNS) merger GW170817 has revealed that these systems constitute at least a fraction of the progenitors of short…

High Energy Astrophysical Phenomena · Physics 2022-03-30 Rosalba Perna , M. Celeste Artale , Yi-Han Wang , Michela Mapelli , Davide Lazzati , Cecilia Sgalletta , Filippo Santoliquido

Spectroscopic r-Process Abundance Retrieval for Kilonovae III: Linking Spectral and Light Curve Modeling of the GW170817 Kilonova

The observed spectra and light curves of the kilonova produced by the GW170817 binary neutron star merger provide complementary insights, but modeling both the spectral- and time-domain has proven challenging. Here, we model the…

High Energy Astrophysical Phenomena · Physics 2025-11-14 Nicholas Vieira , John J. Ruan , Daryl Haggard , Maria R. Drout , Rodrigo Fernández

Radio Forensics Could Unmask Nearby Off-axis Gamma-ray Bursts

The multi-messenger observation of gamma-ray burst (GRB)\,170817A from the nearby binary neutron-star merger GW170817 demonstrated that low-energy $\gamma$-ray emission can be observed at relatively large angles from GRB jet axes. If such…

High Energy Astrophysical Phenomena · Physics 2019-03-20 Imre Bartos , Kyung-hwan Lee , Alessandra Corsi , Zsuzsa Marka , Szabolcs Marka

GW200208_222617 as an eccentric black-hole binary merger: properties and astrophysical implications

Detecting orbital eccentricity in a stellar-mass black-hole merger would point to a non-isolated formation channel. Eccentric binaries can form in dense stellar environments such as globular clusters or active galactic nuclei, or from…

High Energy Astrophysical Phenomena · Physics 2026-01-05 Isobel Romero-Shaw , Jakob Stegmann , Hiromichi Tagawa , Davide Gerosa , Johan Samsing , Nihar Gupte , Stephen R. Green

Kilonova constraints for the LIGO/Virgo/KAGRA neutron star merger candidate S250206dm: GW-MMADS observations

Gravitational wave (GW) neutron star mergers with an associated electromagnetic counterpart constitute powerful probes of binary evolution, the production sites of heavy elements, general relativity, and the expansion of the universe. Only…

High Energy Astrophysical Phenomena · Physics 2025-11-04 Lei Hu , Tomás Cabrera , Antonella Palmese , James Freeburn , Mattia Bulla , Igor Andreoni , Xander J. Hall , Brendan O'Connor , Ariel Amsellem , Clécio R. Bom , Malte Busmann , Jennifer Fabà , Julius Gassert , Sena Kalabalik , Keerthi Kunnumkai , Daniel Gruen , Luidhy Santana-Silva , André Santos , Tomás Ahumada , Jonathan Carney , Michael W. Coughlin , Xingzhuo Chen , K. E. Saavik Ford , Daniel E. Holz , Mansi M. Kasliwal , Ignacio Magaña Hernandez , Cassidy Mihalenko , Rosalba Perna , Arno Riffeser , Christoph Ries , Lena Schnappinger , Michael Schmidt , Julian Sommer , Sarah Teague , Pablo Vega , Olga Volchansky , Lifan Wang , Yajie Zhang

The Combined Ultraviolet, Optical, and Near-Infrared Light Curves of the Kilonova Associated with the Binary Neutron Star Merger GW170817: Unified Data Set, Analytic Models, and Physical Implications

We present the first effort to aggregate, homogenize, and uniformly model the combined ultraviolet, optical, and near-infrared dataset for the electromagnetic counterpart of the binary neutron star merger GW170817. By assembling all of the…

High Energy Astrophysical Phenomena · Physics 2017-12-20 V. Ashley Villar , James Guillochon , Edo Berger , Brian D. Metzger , Philip S. Cowperthwaite , Matt Nicholl , Kate D. Alexander , Peter K. Blanchard , Ryan Chornock , Tarraneh Eftekhari , Wen-fai Fong , Raffaella Margutti , Peter K. G. Williams

Characterizing Astrophysical Binary Neutron Stars with Gravitational Waves

Merging binary neutron stars are thought to be formed predominantly via isolated binary evolution. In this standard formation scenario, the first-born neutron star goes through a recycling process and might be rapidly spinning during the…

High Energy Astrophysical Phenomena · Physics 2020-10-09 Xing-Jiang Zhu , Gregory Ashton

Predicting electromagnetic counterparts using low-latency, gravitational-wave data products

Searches for gravitational-wave counterparts have been going in earnest since GW170817 and the discovery of AT2017gfo. Since then, the lack of detection of other optical counterparts connected to binary neutron star or black hole - neutron…

High Energy Astrophysical Phenomena · Physics 2021-06-30 Cosmin Stachie , Michael W. Coughlin , Tim Dietrich , Sarah Antier , Mattia Bulla , Nelson Christensen , Reed Essick , Philippe Landry , Benoit Mours , Federico Schianchi , Andrew Toivonen