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Recent work highlights that tens of Galactic double neutron stars are likely to be detectable in the millihertz band of the space-based gravitational-wave observatory, LISA. Kyutoku and Nishino point out that some of these binaries might be…

高能天体物理现象 · 物理学 2020-03-11 Eric Thrane , Stefan Osłowski , Paul Lasky

As technology has improved, binary neutron star systems have been observed more frequently, in fact, the first gravitational wave to have an electromagnetic counterpart originated from the merger of two neutron stars (GW170817). Detecting…

天体物理仪器与方法 · 物理学 2022-11-18 Jeshwanth Mohan

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…

As the sensitivity of the international gravitational wave detector network increases, observing binary neutron star signals will become more common. Moreover, since these signals will be louder, the chances of detecting them before their…

广义相对论与量子宇宙学 · 物理学 2024-07-16 Wouter van Straalen , Alex Kolmus , Justin Janquart , Chris Van Den Broeck

Gravitational waves from binary neutron star mergers can be used as alerts to enable prompt follow-up observations. In particular, capturing prompt electromagnetic and astroparticle emissions from the moment of a binary merger presents…

广义相对论与量子宇宙学 · 物理学 2022-03-09 Manoj Kovalam , Md Anwarul Kaium Patwary , Anala K Sreekumar , Linqing Wen , Fiona H Panther , Qi Chu

We introduce deep learning time-series forecasting for gravitational wave detection of binary neutron star mergers. This method enables the identification of these signals in real advanced LIGO data up to 30 seconds before merger. When…

广义相对论与量子宇宙学 · 物理学 2021-03-09 Wei Wei , E. A. Huerta

For third generation gravitational wave detectors, such as the Einstein Telescope, gravitational wave signals from binary neutron stars can last up to a few days before the neutron stars merge. To estimate the measurement uncertainties of…

高能天体物理现象 · 物理学 2018-07-04 Man Leong Chan , Chris Messenger , Ik Siong Heng , Martin Hendry

On 17 August 2017, less than two years after the direct detection of gravitational radiation from the merger of two ~30 Msun black holes, a binary neutron star merger was identified as the source of a gravitational wave signal of ~100 s…

高能天体物理现象 · 物理学 2021-01-12 Elena Pian

The merger of two neutron stars is a very complex process. In order to disentangle the various steps through which it takes place it is mandatory to examine all the signals we can detect: gravitational waves and electromagnetic waves, in a…

高能天体物理现象 · 物理学 2018-02-07 Alessandro Drago , Giuseppe Pagliara , Silvia Traversi

Finite-size effects on the gravitational wave signal from a neutron star merger typically manifest at high frequencies where detector sensitivity decreases. Proposed sensitivity improvements can give us access both to stronger signals and…

广义相对论与量子宇宙学 · 物理学 2021-01-04 Carl-Johan Haster , Katerina Chatziioannou , Andreas Bauswein , James Alexander Clark

As two neutron stars merge, they emit gravitational waves that can potentially be detected by earth bound detectors. Matched-filtering based algorithms have traditionally been used to extract quiet signals embedded in noise. We introduce a…

高能天体物理现象 · 物理学 2020-09-29 Marlin B. Schäfer , Frank Ohme , Alexander H. Nitz

We demonstrate by a large set of merger simulations for symmetric binary neutron stars (NSs) that there is a tight correlation between the frequency peak of the postmerger gravitational-wave (GW) emission and the physical properties of the…

太阳与恒星天体物理 · 物理学 2015-05-28 A. Bauswein , H. -Th. Janka

The recent detection of a neutron star binary through gravitational waves, GW170817, has offered another source of information about the properties of cold supranuclear matter. Information from the signal emitted before the neutron stars…

广义相对论与量子宇宙学 · 物理学 2019-02-20 Andoni Torres-Rivas , Katerina Chatziioannou , Andreas Bauswein , James Alexander Clark

Since gravitational and electromagnetic waves from a compact binary coalescence carry independent information about the source, the joint observation is important for understanding the physical mechanisms of the emissions. Rapid detection…

广义相对论与量子宇宙学 · 物理学 2022-05-09 Takuya Tsutsui , Atsushi Nishizawa , Soichiro Morisaki

The mergers of binaries containing neutron stars and stellar-mass black holes are the most promising sources for direct detection in gravitational waves by the interferometers Advanced LIGO and Virgo over the next few years. The concurrent…

高能天体物理现象 · 物理学 2016-06-29 Rodrigo Fernández , Brian D. Metzger

Binary neutron star mergers are expected to be one of the most promising source of gravitational waves (GW) for the network of laser interferometric and bar detectors becoming operational in the next few years. The merger wave signal is…

天体物理学 · 物理学 2015-06-24 R. Oechslin , G. Poghosyan , K. Uryu

Observations of the high-frequency gravitational waves (GWs) emitted by the hot and massive remnant of a binary neutron star merger will provide new probes of the dense-matter equation of state (EoS). We show that current uncertainties in…

高能天体物理现象 · 物理学 2024-07-02 Carolyn A. Raithel , Vasileios Paschalidis

Binary neutron star mergers are thought to produce hot, rapidly rotating neutron stars with masses that can far exceed their Tolman-Oppenheimer-Volkoff mass. The gravitational-wave emission from such remnants provides a unique opportunity…

高能天体物理现象 · 物理学 2026-03-02 Spencer J. Magnall , Nilaksha Barman , Debarati Chatterjee , Paul D. Lasky , Simon Goode

Gravitational waves have been detected from a binary neutron star merger event, GW170817. The detection of electromagnetic radiation from the same source has shown that the merger occurred in the outskirts of the galaxy NGC 4993, at a…

The detection of the binary neutron star (BNS) merger, GW170817, was the first success story of multi-messenger observations of compact binary mergers. The inferred merger rate along with the increased sensitivity of the ground-based…

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