Electromagnetic Precursors of Short Gamma-Ray Bursts as Counterparts of Gravitational Waves

Wang, Jie-Shuang; Liu, Liang-Duan

doi:10.3390/galaxies9040104

Cited by 5 publications

(2 citation statements)

References 90 publications

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“…Multi-messenger observations of the moments just before the merger could probe several highly-debated astrophysical scenarios (see Wang and Liu, 2021, for a recent review, and references therein). From a theoretical perspective, models predict the possible existence of pre-merger electromagnetic signatures via a variety of mechanisms including two-body electromagnetic interactions, resonant NS crust shattering, magnetic reconnection and particle…”

Section: Electromagnetic Precursors To Compact Binary Mergersmentioning

confidence: 99%

Multi-messenger astrophysics of black holes and neutron stars as probed by ground-based gravitational wave detectors: from present to future

Corsi,

Barsotti,

Berti

et al. 2024

Front. Astron. Space Sci.

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The ground-based gravitational wave (GW) detectors LIGO and Virgo have enabled the birth of multi-messenger GW astronomy via the detection of GWs from merging stellar-mass black holes (BHs) and neutron stars (NSs). GW170817, the first binary NS merger detected in GWs and all bands of the electromagnetic spectrum, is an outstanding example of the impact that GW discoveries can have on multi-messenger astronomy. Yet, GW170817 is only one of the many and varied multi-messenger sources that can be unveiled using ground-based GW detectors. In this contribution, we summarize key open questions in the astrophysics of stellar-mass BHs and NSs that can be answered using current and future-generation ground-based GW detectors, and highlight the potential for new multi-messenger discoveries ahead.

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Section: Electromagnetic Precursors To Compact Binary Mergersmentioning

confidence: 99%

Multi-messenger astrophysics of black holes and neutron stars as probed by ground-based gravitational wave detectors: from present to future

Corsi,

Barsotti,

Berti

et al. 2024

Front. Astron. Space Sci.

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“…The latter direction is all the more important and exceptionally interesting in connection with the discovery of the gravitational wave event GW170817 [1], caused by the merger of two neutron stars and the associated short gamma-ray burst GRB 170817A [2][3][4], the kilonova emission [5,6] and subsequently with a long multi-wavelength afterglow [7][8][9][10][11][12]. At the same time, there are considerations that precursors of short gammaray bursts can precede gravitational-wave pulses [13], thereby marking the region of their localization, which gives hope for searching for electromagnetic radiation synchronously with the pulse itself. When searching for variability, as a rule, two modes of observation are implemented (we note a certain conventionality of such a division): survey and monitoring.…”

Section: Introductionmentioning

confidence: 98%

SAINT (Small Aperture Imaging Network Telescope)—A Wide-Field Telescope Complex for Detecting and Studying Optical Transients at Times from Milliseconds to Years

Beskin,

Biryukov,

Gutaev

et al. 2023

Photonics

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In this paper, we present a project of a multi-channel wide-field optical sky monitoring system with high temporal resolution—Small Aperture Imaging Network Telescope (SAINT)— mostly built from off-the-shelf components and aimed towards searching and studying optical transient phenomena on the shortest time scales. The instrument consists of twelve channels each containing 30 cm (F/1.5) GENON Max objectives mounted on separate ASA DDM100 mounts with pointing speeds up to 50 deg/s. Each channel is equipped with a 4128 × 4104 pixel Andor Balor sCMOS detector and a set of photometric griz filters and linear polarizers. At the heart of every channel is a custom-built reducer-collimator module allowing rapid switching of an effective focal length of the telescope—due to it the system is capable of operating in either wide-field survey or narrow-field follow-up modes. In the first case, the field of view of the instrument is 470 square degrees (39 sq.deg. for a single channel) and the detection limits (5σ level at 5500 Å) are 12.5, 16.5, 19, 21 with exposure times of 20 ms, 1 s, 30 s and 20 min, correspondingly. In the second, follow-up (e.g., upon detection of a transient of interest by either a real-time detection pipeline, or upon receiving an external trigger) regime, all telescopes are oriented towards the single target, and SAINT becomes an equivalent to a monolithic 1-meter telescope, with the field of view reduced to 11′ × 11′, and the exposure times decreased down to 0.6 ms (1684 frames per second). Different channels may then have different filters installed, thus allowing a detailed study—acquiring both color and polarization information—of a target object with the highest possible temporal resolution. The telescopes are located in two pavilions with sliding roofs and are controlled by a cluster of 25 computers that both govern their operation and acquire and store up to 800 terabytes of data every night, also performing its real-time processing using a dedicated fast image subtraction pipeline. Long-term storage of the data will require a petabyte class storage. The operation of SAINT will allow acquiring an unprecedented amount of data on various classes of astrophysical phenomena, from near-Earth to extragalactic ones, while its multi-channel design and the use of commercially available components allows easy expansion of its scale, and thus performance and detection capabilities.

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Electromagnetic follow-up observations of binary neutron star mergers with early warnings from decihertz gravitational-wave observatories

Kang

Liu

Shao

2022

Monthly Notices of the Royal Astronomical Society

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We investigate the prospects of electromagnetic follow-up observations for binary neutron star (BNS) mergers, with the help of early warnings from decihertz gravitational-wave (GW) observatories, B-DECIGO and DO-Optimal. Extending the previous work, we not only give quick assessments of joint short γ-ray burst (sGRB) detection rates for different γ-ray satellites and BNS population models, but also elaborate on the analyses and results on multiband kilonova detections for survey telescopes with different limiting magnitudes. During an assumed 4-yr mission time for decihertz GW observatories, we find that for the goals of electromagnetic follow-ups, DO-Optimal performs better than B-DECIGO as a whole on the detection rate, and has a larger detectable distance for joint sGRB/kilonova searches. Taking the lognormal population model for BNS mergers and a 1-d early-warning time as an example, we discuss the accuracy in localization and timing, as well as the redshift distributions for various synergy observations with electromagnetic facilities and decihertz GW detectors. Based on our analyses, we propose a feasible ‘wait-for’ pattern as a novel detecting mode for future multimessenger astrophysics.

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Electromagnetic Precursors of Short Gamma-Ray Bursts as Counterparts of Gravitational Waves

Cited by 5 publications

References 90 publications

Multi-messenger astrophysics of black holes and neutron stars as probed by ground-based gravitational wave detectors: from present to future

Multi-messenger astrophysics of black holes and neutron stars as probed by ground-based gravitational wave detectors: from present to future

SAINT (Small Aperture Imaging Network Telescope)—A Wide-Field Telescope Complex for Detecting and Studying Optical Transients at Times from Milliseconds to Years

Electromagnetic follow-up observations of binary neutron star mergers with early warnings from decihertz gravitational-wave observatories

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