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Gravitational-wave (GW) observations by a network of ground-based laser interferometric detectors allow us to probe the nature of GW polarizations. This would be an interesting test of general relativity (GR), since GR predicts only two…

广义相对论与量子宇宙学 · 物理学 2021-01-27 Srashti Goyal , K. Haris , Ajit Kumar Mehta , Parameswaran Ajith

Strongly lensed gravitational waves (GWs) from binary coalescence manifest as repeated chirps from the original merger. At the detectors, the phase of the lensed GWs and its arrival time differences will be consistent modulo a fixed…

宇宙学与河外天体物理 · 物理学 2023-11-17 Jose María Ezquiaga , Wayne Hu , Rico K. L. Lo

The electromagnetic (EM) follow-up of a gravitational wave (GW) event requires to scan a wide sky region, defined by the so called "skymap", for the detection and identification of a transient counterpart. We propose a novel method that…

Like light, gravitational waves can be gravitationally lensed by massive objects along their travel path. Strong lensing produces several images from the same binary coalescence and is forecasted to have a promising rate in ground-based…

广义相对论与量子宇宙学 · 物理学 2022-03-16 Justin Janquart , Otto A. Hannuksela , K. Haris , Chris Van Den Broeck

This chapter provides an overview of gravitational wave (GW) astronomy, providing background material that underpins the other, more specialized chapters in this handbook. It starts with a brief historical review of the development of GW…

广义相对论与量子宇宙学 · 物理学 2022-07-20 Nigel T. Bishop

It is expected that gravitational waves, similar to electromagnetic waves, can be gravitationally lensed by intervening matters, producing multiple instances of the same signal arriving at different times from different apparent luminosity…

广义相对论与量子宇宙学 · 物理学 2023-06-14 Rico K. L. Lo , Ignacio Magana Hernandez

The new generation of gravitational wave (GW) detectors have the potential to open a novel window onto the violent dynamics of core collapse. Although it is certain that core collapse events generate gravitational radiation, understanding…

天体物理学 · 物理学 2007-05-23 Chris L. Fryer , Daniel E. Holz , Scott A. Hughes , Michael S. Warren

By now, tens of gravitational-wave (GW) events have been detected by the LIGO and Virgo detectors. These GWs have all been emitted by compact binary coalescence, for which we have excellent predictive models. However, there might be other…

天体物理仪器与方法 · 物理学 2020-11-25 Tom Marianer , Dovi Poznanski , J. Xavier Prochaska

Observations of short-duration gamma-ray bursts and their afterglows show that a good fraction (perhaps $\gtrsim50\%$) of binary neutron star mergers lead to strongly magnetized, rapidly rotating pulsars (including millisecond magnetars),…

高能天体物理现象 · 物理学 2019-02-22 Z. G. Dai

It has been shown in the literature that detections of gravitational waves (GWs) emitted by binary sources can provide measurements of luminosity distance. The events followed by electromagnetic counterparts are, then, suitable for probing…

宇宙学与河外天体物理 · 物理学 2022-03-16 Isabela S. Matos

We suggest a new approach to the detection of gravitational waves using observations of a group of millisecond pulsars. In contrast to the usual method, based on increasing the accuracy of the arrival times of pulses by excluding possible…

天体物理仪器与方法 · 物理学 2011-07-26 Alexander E. Rodin

The detection of the first gravitational wave events by the Advanced LIGO Scientific Collaboration has opened a new possibility for the study of fundamental physics of gravitational interaction. This work conducts an analysis of possible…

广义相对论与量子宇宙学 · 物理学 2017-06-30 Liudmila Fesik

A method is given which renders indirect detection of strong gravitational waves possible. This is based on the reflection (collision) of a linearly polarized electromagnetic shock wave from (with) a cross polarized impulsive and shock…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Mustafa Halilsoy , Ozay Gurtug

We use numerical relativity simulations of binary neutron star mergers to show that high density deconfinement phase transitions (PTs) to quark matter can be probed using multimodal postmerger gravitational wave (GW) spectroscopy.…

高能天体物理现象 · 物理学 2026-01-13 Pedro Luis Espino , Aviral Prakash , David Radice , Domenico Logoteta

Matched-filtering detection techniques for gravitational-wave (GW) signals in ground-based interferometers rely on having well-modeled templates of the GW emission. Such techniques have been traditionally used in searches for compact binary…

The gravitational wave (GW) has opened a new window to the universe beyond the electromagnetic spectrum. Since 2015, dozens of GW events have been caught by the ground-based GW detectors through laser interferometry. However, all the…

广义相对论与量子宇宙学 · 物理学 2020-10-07 Mengxu Liu , Biping Gong

Detecting unmodeled gravitational wave (GW) bursts presents significant challenges due to the lack of accurate waveform templates required for matched-filtering techniques. A primary difficulty lies in distinguishing genuine signals from…

广义相对论与量子宇宙学 · 物理学 2025-09-17 Matteo Pracchia , Sacha Peters , Maxime Fays

Gravitational waves, like light, can be gravitationally lensed by massive astrophysical objects such as galaxies and galaxy clusters. Strong gravitational-wave lensing, forecasted at a reasonable rate in ground-based gravitational-wave…

广义相对论与量子宇宙学 · 物理学 2021-08-18 Justin Janquart , Otto A. Hannuksela , Haris K. , Chris Van Den Broeck

The effect of gravitational wave of cosmological wavelength on the gravitational lensing is investigated. When the source, deflector, and observer are aligned in a highly symmetric configuration, an Einstein ring will be observed by the…

广义相对论与量子宇宙学 · 物理学 2021-11-04 Wenshuai Liu

Gravitational waves (GW) are expected to interact with dark energy and dark matter, affecting their propagation on cosmological scales. In order to model this interaction, we derive a gauge invariant effective equation and action valid for…

宇宙学与河外天体物理 · 物理学 2024-03-29 Antonio Enea Romano