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The temporal dependence of the astrophysical stochastic gravitational-wave (GW) background (SGWB) in the hecto-hertz band brings a unique avenue to identify multi-messenger signals to these sources by using coincident detection in both GW…

高能天体物理现象 · 物理学 2025-07-28 Hardik Jitendra Kuralkar , Mohit Raj Sah , Suvodip Mukherjee

A crucial component to maximizing the science gain from the multi-messenger follow-up of gravitational-wave (GW) signals from compact binary mergers is the prompt discovery of the electromagnetic counterpart. Ideally, the GW detection and…

高能天体物理现象 · 物理学 2020-08-06 Shasvath J. Kapadia , Mukesh Kumar Singh , Md Arif Shaikh , Deep Chatterjee , Parameswaran Ajith

Source localization is the process of estimating the location of signal sources based on the signals received at different antennas of an antenna array. It has diverse applications, ranging from radar systems and underwater acoustics to…

信号处理 · 电气工程与系统科学 2024-02-13 Parisa Ramezani , Özlem Tuğfe Demir , Emil Björnson

Pulsar timing arrays (PTAs) are anticipated to detect continuous gravitational waves (GWs) from individual supermassive black hole binaries (SMBHBs) in the near future. To identify the host galaxy of a GW source, PTAs require significantly…

广义相对论与量子宇宙学 · 物理学 2026-01-12 Ryo Kato , Keitaro Takahashi

Gravitational wave detectors now under construction are sensitive to the phase of the incident gravitational waves. Correspondingly, the signals from the different detectors can be combined, in the analysis, to simulate a single detector of…

广义相对论与量子宇宙学 · 物理学 2009-12-31 Lee Samuel Finn

We discuss two approaches to searches for gravitational-wave (GW) and electromagnetic (EM) counterparts of binary neutron star mergers. The first approach relies on triggering archival searches of GW detector data based on detections of EM…

高能天体物理现象 · 物理学 2015-06-03 Ilya Mandel , Luke Z. Kelley , Enrico Ramirez-Ruiz

Localizing sources on the sky is crucial for realizing the full potential of gravitational waves for astronomy, astrophysics, and cosmology. We show that the mid-frequency band, roughly 0.03 to 10 Hz, has significant potential for angular…

广义相对论与量子宇宙学 · 物理学 2018-02-07 Peter W. Graham , Sunghoon Jung

Gravitational wave (GW) sources at cosmological distances can be used to probe the expansion rate of the Universe. GWs directly provide a distance estimation of the source but no direct information on its redshift. The optimal scenario to…

Joint gravitational-wave (GW) and $\gamma$-ray burst (GRB) observations are among the best prospects for standard siren cosmology. However, the strong selection effect for the coincident GRB detection, which is possible only for sources…

高能天体物理现象 · 物理学 2024-12-12 Michele Mancarella , Francesco Iacovelli , Stefano Foffa , Niccolò Muttoni , Michele Maggiore

Background estimation is important for determining the statistical significance of a gravitational-wave event. Currently, the background model is constructed numerically from the strain data using estimation techniques that insulate the…

Optical and infrared observations have thus far detected more celestial cataclysms than have been seen in gravity waves (GW). This argues that we should search for gravity wave signatures that correspond to flux variability seen at optical…

天体物理学 · 物理学 2009-02-05 Christopher W. Stubbs

We investigate a novel approach to measuring the Hubble constant using gravitational-wave (GW) signals from compact binaries by exploiting the narrowness of the distribution of masses of the underlying neutron-star population.…

广义相对论与量子宇宙学 · 物理学 2012-01-31 Stephen R. Taylor , Jonathan R. Gair , Ilya Mandel

In this paper we ask whether the phenomenon of timing noise long known in electromagnetic pulsar astronomy is likely to be important in gravitational wave (GW) observations of spinning-down neutron stars. We find that timing noise is strong…

广义相对论与量子宇宙学 · 物理学 2009-11-10 D. I. Jones

In the next decade, new astrophysical instruments will deliver the first large-scale maps of gravitational waves and radio sources. Therefore, it is timely to investigate the possibility to combine them to provide new and complementary ways…

宇宙学与河外天体物理 · 物理学 2017-07-19 Alvise Raccanelli

We present a statistic for the detection of stochastic gravitational wave backgrounds (SGWBs) using radiometry with a network of multiple baselines. We also quantitatively compare the sensitivities of existing baselines and their network to…

广义相对论与量子宇宙学 · 物理学 2015-03-17 Dipongkar Talukder , Sanjit Mitra , Sukanta Bose

Time shifting the outputs of Gravitational Wave detectors operating in coincidence is a convenient way to estimate the background in a search for short duration signals. However this procedure is limited as increasing indefinitely the…

We explore scaling relations for the information carried by individual events, and how that information accumulates in catalogs like those from ground-based gravitational-wave detectors. For a variety of situations, the larger number of…

广义相对论与量子宇宙学 · 物理学 2024-07-17 Reed Essick , Daniel E. Holz

Gravitational waves (GWs) are signals that propagate across large distances in the Universe, and thus, they bring information on the cosmic history. GW sources are at the same time distance indicators and tracers of the matter field. Events…

宇宙学与河外天体物理 · 物理学 2024-06-21 Isabela S. Matos

Targeted searches of continuous waves from spinning neutron stars normally assume that the frequency of the gravitational wave signal is at a given known ratio with respect to the rotational frequency of the source, e.g. twice for an…

天体物理仪器与方法 · 物理学 2015-06-19 Pia Astone , Alberto Colla , Sabrina D'Antonio , Sergio Frasca , Cristiano Palomba , Roberto Serafinelli

Precision timing of highly stable milli-second pulsars is a promising technique for the detection of very low frequency sources of gravitational waves. In any single pulsar, a stochastic gravitational wave signal appears as an additional…

广义相对论与量子宇宙学 · 物理学 2016-06-01 Neil J. Cornish , Laura M. Sampson