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The Cherenkov Telescope Array transient and multi-messenger program

Carosi, Alessandro ; López-Oramas, Alicia ; Longo, Francesco ; Carlile, C. LU ; Dravins, D. LU orcid and Zmija, A. (2022) 37th International Cosmic Ray Conference In Proceedings of Science 395.
Abstract
The Cherenkov Telescope Array (CTA) is a next generation ground-based very-high-energy gamma-ray observatory that will allow for observations in the >10 GeV range with unprecedented photon statistics and sensitivity. This will enable the investigation of the yet-marginally explored physics of short-time-scale transient events. CTA will thus become an invaluable instrument for the study of the physics of the most extreme and violent objects and their interactions with the surrounding environment. The CTA Transient program includes follow-up observations of a wide range of multi-wavelength and multi-messenger alerts, ranging from compact galactic binary systems to extragalactic events such as gamma-ray bursts (GRBs), core-collapse... (More)
The Cherenkov Telescope Array (CTA) is a next generation ground-based very-high-energy gamma-ray observatory that will allow for observations in the >10 GeV range with unprecedented photon statistics and sensitivity. This will enable the investigation of the yet-marginally explored physics of short-time-scale transient events. CTA will thus become an invaluable instrument for the study of the physics of the most extreme and violent objects and their interactions with the surrounding environment. The CTA Transient program includes follow-up observations of a wide range of multi-wavelength and multi-messenger alerts, ranging from compact galactic binary systems to extragalactic events such as gamma-ray bursts (GRBs), core-collapse supernovae and bright AGN flares. In recent years, the first firm detection of GRBs by current Cherenkov telescope collaborations, the proven connection between gravitational waves and short GRBs, as well as the possible neutrino-blazar association with TXS 0506+056 have shown the importance of coordinated follow-up observations triggered by these different cosmic signals in the framework of the birth of multi-messenger astrophysics. In the next years, CTA will play a major role in these types of observations by taking advantage of its fast slewing (especially for the CTA Large Size Telescopes), large effective area and good sensitivity, opening new opportunities for time-domain astrophysics in an energy range not affected by selective absorption processes typical of other wavelengths. In this contribution we highlight the common approach adopted by the CTA Transients physics working group to perform the study of transient sources in the very-high-energy regime. © Copyright owned by the author(s) under the terms of the Creative Commons. (Less)
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author
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author collaboration
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Cosmic rays, Cosmology, Gamma rays, Supernovae, Telescopes, Cherenkov telescope arrays, Follow up, Gamma ray observatories, Gamma rays bursts, Ground based, High energy gamma rays, Photon statistics, Short time scale, Transient events, Very high energies, Germanium compounds
host publication
37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
series title
Proceedings of Science
volume
395
article number
736
conference name
37th International Cosmic Ray Conference
conference location
Berlin, Germany
conference dates
2021-07-12 - 2021-07-23
external identifiers
  • scopus:85145020779
ISSN
1824-8039
DOI
10.22323/1.395.0736
language
English
LU publication?
yes
id
0d3e45a0-ed7a-48be-acf7-b1622687b29d
date added to LUP
2023-01-16 11:26:07
date last changed
2024-04-03 18:16:15
@inproceedings{0d3e45a0-ed7a-48be-acf7-b1622687b29d,
  abstract     = {{The Cherenkov Telescope Array (CTA) is a next generation ground-based very-high-energy gamma-ray observatory that will allow for observations in the >10 GeV range with unprecedented photon statistics and sensitivity. This will enable the investigation of the yet-marginally explored physics of short-time-scale transient events. CTA will thus become an invaluable instrument for the study of the physics of the most extreme and violent objects and their interactions with the surrounding environment. The CTA Transient program includes follow-up observations of a wide range of multi-wavelength and multi-messenger alerts, ranging from compact galactic binary systems to extragalactic events such as gamma-ray bursts (GRBs), core-collapse supernovae and bright AGN flares. In recent years, the first firm detection of GRBs by current Cherenkov telescope collaborations, the proven connection between gravitational waves and short GRBs, as well as the possible neutrino-blazar association with TXS 0506+056 have shown the importance of coordinated follow-up observations triggered by these different cosmic signals in the framework of the birth of multi-messenger astrophysics. In the next years, CTA will play a major role in these types of observations by taking advantage of its fast slewing (especially for the CTA Large Size Telescopes), large effective area and good sensitivity, opening new opportunities for time-domain astrophysics in an energy range not affected by selective absorption processes typical of other wavelengths. In this contribution we highlight the common approach adopted by the CTA Transients physics working group to perform the study of transient sources in the very-high-energy regime. © Copyright owned by the author(s) under the terms of the Creative Commons.}},
  author       = {{Carosi, Alessandro and López-Oramas, Alicia and Longo, Francesco and Carlile, C. and Dravins, D. and Zmija, A.}},
  booktitle    = {{37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect}},
  issn         = {{1824-8039}},
  keywords     = {{Cosmic rays; Cosmology; Gamma rays; Supernovae; Telescopes; Cherenkov telescope arrays; Follow up; Gamma ray observatories; Gamma rays bursts; Ground based; High energy gamma rays; Photon statistics; Short time scale; Transient events; Very high energies; Germanium compounds}},
  language     = {{eng}},
  series       = {{Proceedings of Science}},
  title        = {{The Cherenkov Telescope Array transient and multi-messenger program}},
  url          = {{http://dx.doi.org/10.22323/1.395.0736}},
  doi          = {{10.22323/1.395.0736}},
  volume       = {{395}},
  year         = {{2022}},
}