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Double neutron star binaries, analogous to the well known Hulse--Taylor pulsar PSR 1913+16, are guaranteed-to-exist sources of high frequency gravitational radiation detectable by LIGO. There is considerable uncertainty in the estimated…

天体物理学 · 物理学 2009-11-07 Michael S. Sipior , Steinn Sigurdsson

Observations of an optical source coincident with gravitational wave emission detected from a binary neutron star coalescence will improve the confidence of detection, provide host galaxy localisation, and test models for the progenitors of…

高能天体物理现象 · 物理学 2011-09-16 D. M. Coward , B. Gendre , P. J. Sutton , E. J. Howell , T. Regimbau , M. Laas-Bourez , A. Klotz , M. Boer , M. Branchesi

Gravitational wave detectors in space, particularly the LISA project, can study a rich variety of astronomical systems whose gravitational radiation is not detectable from the ground, because it is emitted in the low-frequency gravitational…

广义相对论与量子宇宙学 · 物理学 2007-05-23 B. F. Schutz

Gravitational-wave signals detected to date are commonly interpreted under the paradigm that they originate from pairs of black holes or neutron stars. Here, we explore the alternative scenario of boson-star signals being present in the…

广义相对论与量子宇宙学 · 物理学 2024-11-11 Tamara Evstafyeva , Ulrich Sperhake , Isobel Romero-Shaw , Michalis Agathos

We introduce a highly-parallelizable architecture for estimating parameters of compact binary coalescence using gravitational-wave data and waveform models. Using a spherical harmonic mode decomposition, the waveform is expressed as a sum…

广义相对论与量子宇宙学 · 物理学 2015-08-06 C. Pankow , P. Brady , E. Ochsner , R. O'Shaughnessy

To evaluate the probability of a gravitational-wave candidate originating from noise, GstLAL collects noise statistics from the data it analyzes. Gravitational-wave signals of astrophysical origin get added to the noise statistics, harming…

广义相对论与量子宇宙学 · 物理学 2023-05-30 Prathamesh Joshi , Leo Tsukada , Chad Hanna

On 11 February 2016, the LIGO and Virgo scientific collaborations announced the first direct detection of gravitational waves, a signal caught by the LIGO interferometers on 14 September 2015, and produced by the coalescence of two…

高能天体物理现象 · 物理学 2022-07-01 Mario Spera , Alessandro Alberto Trani , Mattia Mencagli

The Advanced LIGO and Virgo gravitational wave observatories have opened a new window with which to study the inspiral and mergers of binary compact objects. These observations are most powerful when coordinated with multi-messenger…

广义相对论与量子宇宙学 · 物理学 2021-10-29 Zhi-Qiang You , Gregory Ashton , Xing-Jiang Zhu , Eric Thrane , Zong-Hong Zhu

With the advanced LIGO and Virgo detectors taking observations the detection of gravitational waves is expected within the next few years. Extracting astrophysical information from gravitational wave detections is a well-posed problem and…

广义相对论与量子宇宙学 · 物理学 2016-08-31 Tyson B. Littenberg , Jonah B. Kanner , Neil J. Cornish , Margaret Millhouse

Gravitational waves emitted from the coalescence of neutron star binaries open a new window to probe matter and fundamental physics in unexplored, extreme regimes. To extract information about the supranuclear matter inside neutron stars…

广义相对论与量子宇宙学 · 物理学 2021-03-10 Tim Dietrich , Tanja Hinderer , Anuradha Samajdar

The F-statistic is an optimal detection statistic for continuous gravitational waves, i.e., long-duration (quasi-)monochromatic signals with slowly-varying intrinsic frequency. This method was originally developed in the context of…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Reinhard Prix , John T. Whelan

We performed a detailed analysis of the detectability of a wide range of gravitational waves derived from core-collapse supernova simulations using gravitational-wave detector noise scaled to the sensitivity of the upcoming fourth and fifth…

Gravitational-wave (GW) astrophysics is a field in full blossom. Since the landmark detection of GWs from a binary black hole on September 14th 2015, several compact-object binaries have been reported by the LIGO-Virgo collaboration. Such…

广义相对论与量子宇宙学 · 物理学 2022-11-04 Andrea Antonelli

Nakamura, Sasaki, Tanaka, and Thorne have recently estimated the initial distribution of binary MACHOs in the galactic halo assuming that the MACHOs are primordial half solar mass black holes, and considered their coalescence as a possible…

广义相对论与量子宇宙学 · 物理学 2009-10-31 William A. Hiscock

Gravitational wave astronomy opened dramatically in September 2015 with the LIGO discovery of a distant and massive binary black hole coalescence. The more recent discovery of a binary neutron star merger, followed by a gamma ray burst and…

广义相对论与量子宇宙学 · 物理学 2017-12-20 Keith Riles

Mergers of two compact objects, like two neutron stars or a neutron star and a black hole, are the probable progenitor of short gamma-ray bursts. These events are also promising sources of gravitational waves, that are currently motivating…

广义相对论与量子宇宙学 · 物理学 2010-06-18 Alexander Dietz

One of the key challenges of real-time detection and parameter estimation of gravitational waves from compact binary mergers is the computational cost of conventional matched-filtering and Bayesian inference approaches. In particular, the…

天体物理仪器与方法 · 物理学 2021-07-30 Plamen G. Krastev , Kiranjyot Gill , V. Ashley Villar , Edo Berger

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

In August 2017, the first detection of a binary neutron star merger, GW170817, made it possible to study neutron stars in compact binary systems using gravitational waves. Despite being the loudest gravitational wave event detected to date…

广义相对论与量子宇宙学 · 物理学 2023-01-24 Stephanie M. Brown , Collin D. Capano , Badri Krishnan

The Advanced Laser Interferometer Gravitational-wave Observatory (LIGO) discovered gravitational waves (GWs) from a binary black hole merger in 2015 September and may soon observe signals from neutron star mergers. There is considerable…