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We present the properties of NGC 4993, the host galaxy of GW170817, the first gravitational wave (GW) event from the merger of a binary neutron star (BNS) system and the first with an electromagnetic (EM) counterpart. We use both archival…

The joint detection of the gravitational wave (GW) GW170817 and its electromagnetic (EM) counterparts GRB170817A and kilonova AT 2017gfo has triggered extensive study of the EM emission of binary neutron star mergers. A parameter which is…

高能天体物理现象 · 物理学 2019-08-28 Hsin-Yu Chen , Salvatore Vitale , Ramesh Narayan

With the discovery of both binary black hole mergers and a binary neutron star merger the field of Gravitational Wave Astrophysics has really begun. The current advanced LIGO and Virgo detectors are laser interferometers that will improve…

太阳与恒星天体物理 · 物理学 2018-07-04 Gijs Nelemans

The gravitational-wave signal from the merger of two neutron stars cannot be easily differentiated from the signal produced by a comparable-mass mixed binary of a neutron star and a black hole. Indeed, both binary types can account for the…

高能天体物理现象 · 物理学 2020-04-24 Hsin-Yu Chen , Katerina Chatziioannou

The detection of gravitational waves (GWs) has provided a new tool to study the Universe, with the scientific return enriched when combined with established probes: electromagnetic (EM) radiation and energetic particles. Since the…

高能天体物理现象 · 物理学 2024-10-25 Matt Nicholl , Igor Andreoni

We discuss the different signals, in gravitational and electromagnetic waves, emitted during the merger of two compact stars. We will focus in particular on the possible contraints that those signals can provide on the equation of state of…

高能天体物理现象 · 物理学 2018-02-08 Alessandro Drago , Giuseppe Pagliara , Sergei B. Popov , Silvia Traversi , Grzegorz Wiktorowicz

Multi-messenger astronomy was galvanized by the detection of gravitational waves (GWs) from the binary neutron star (BNS) merger GW170817 and electromagnetic (EM) emission from the subsequent kilonova and short gamma ray burst. Maximizing…

高能天体物理现象 · 物理学 2025-12-02 Nathan Steinle , Samar Safi-Harb , Matt Nicholl , Isabelle Worssam , Benjamin P. Gompertz

On August 17, 2017 at 12:41:04 UTC the Advanced LIGO and Advanced Virgo gravitational-wave detectors made their first observation of a binary neutron star inspiral. The signal, GW170817, was detected with a combined signal-to-noise ratio of…

广义相对论与量子宇宙学 · 物理学 2017-10-17 The LIGO Scientific Collaboration , The Virgo Collaboration

We describe the first observations of the same celestial object with gravitational waves and light. * GW170817 was the first detection of a neutron star merger with gravitational waves. * The detection of a spatially coincident weak burst…

高能天体物理现象 · 物理学 2021-12-01 Raffaella Margutti , Ryan Chornock

The merger of binary neutron star (BNS) systems are predicted to be progenitors of short gamma-ray bursts (GRBs); the definitive probe of this association came with the recent detection of gravitational waves (GWs) from a BNS merger by…

高能天体物理现象 · 物理学 2018-06-06 Barbara Patricelli , Antonio Stamerra , Massimiliano Razzano , Elena Pian , Giancarlo Cella

Although gravitational-wave signals from exceptional low-mass compact binary coalescences, like GW170817, may carry matter signatures that differentiate the source from a binary black hole system, only one out of every eight events detected…

高能天体物理现象 · 物理学 2020-12-02 Reed Essick , Philippe Landry

Mergers of binary neutron stars (BNSs) emit signals in both the gravitational-wave (GW) and electromagnetic (EM) spectra. Famously, the 2017 multi-messenger observation of GW170817 led to scientific discoveries across cosmology, nuclear…

During the final moments of a binary black hole (BH) merger, the gravitational wave (GW) luminosity of the system is greater than the combined electromagnetic output of the entire observable universe. However, the extremely weak coupling…

高能天体物理现象 · 物理学 2015-05-20 Jeremy D. Schnittman

Mergers of binary neutron stars and black hole-neutron star binaries produce gravitational-wave (GW) emission and outflows with significant kinetic energies. These outflows result in radio emissions through synchrotron radiation. We explore…

高能天体物理现象 · 物理学 2016-11-15 Kenta Hotokezaka , Samaya Nissanke , Gregg Hallinan , T. Joseph W. Lazio , Ehud Nakar , Tsvi Piran

We suggest that the major fraction of binary mergers, which might provide gravitational wave signal detectable by LIGO/Virgo, emerged from the hidden mirror sector. Mirror particles do not interact with an ordinary observer except…

高能天体物理现象 · 物理学 2020-04-03 Revaz Beradze , Merab Gogberashvili , Alexander S. Sakharov

Two neutron stars merge somewhere in the Universe approximately every 10 seconds, creating violent explosions observable in gravitational waves and across the electromagnetic spectrum. The transformative coincident gravitational-wave and…

高能天体物理现象 · 物理学 2022-02-21 Nikhil Sarin , Paul D. Lasky

We present a search for merging compact binary gravitational-wave sources that produce a signal appearing solely or primarily in a single detector. Past analyses have heavily relied on coincidence between multiple detectors to reduce…

高能天体物理现象 · 物理学 2020-08-28 Alexander H. Nitz , Thomas Dent , Gareth S. Davies , Ian Harry

The joint detection of gravitational waves (GWs) and electromagnetic (EM) radiation from the binary neutron star merger GW170817 ushered in a new era of multi-messenger astronomy. Joint GW-EM observations can be used to measure the…

高能天体物理现象 · 物理学 2018-06-13 Daniel Finstad , Soumi De , Duncan A. Brown , Edo Berger , Christopher M. Biwer

The promise by the LIGO/Virgo/Kagra (LVK) collaboration to detect black hole--neutron star (BH--NS) mergers via gravitational wave (GW) emission has recently been fulfilled with the detection of GW200105 and GW200115. Mergers of BH--NS…

高能天体物理现象 · 物理学 2021-12-15 Giacomo Fragione

Neutron stars (NSs) are extraordinary not only because they are the densest form of matter in the visible Universe but also because they can generate B-fields ten orders of magnitude larger than those currently constructed on Earth. The…

高能天体物理现象 · 物理学 2021-04-09 Milton Ruiz , Stuart L. Shapiro , Antonios Tsokaros