Gamma-ray observations of MAXI J1820+070 during the 2018 outburst

The VERITAS Collaboration; the H.E.S.S. Collaboration; The MAGIC Collaboration

doi:10.1093/mnras/stac2686

Gamma-ray observations of MAXI J1820+070 during the 2018 outburst

The VERITAS Collaboration
, the H.E.S.S. Collaboration
, The MAGIC Collaboration

University of Tokyo
Research Unit; CIBERNED and Universidad de La Laguna
Istituto di Astrofisica e Planetologia Spaziali (IAPS)
and Physics University of Udine
Max-Planck-Institut für Physik
University of Padova
The Barcelona Institute of Science and Technology
University of Dortmund
University of Zagreb, Faculty of Electrical Engineering and Computing
IPARCOS-UCM (Instituto de Física de Partículas y del Cosmos)
Centro Brasileiro de Pesquisas Fisicas
University of Lodz
Instituto de Astrofísica de Andalucía-CSIC
c/o DESY
ETH Zurich
University of Pisa
University of Barcelona
Yerevan Physics Institute
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
University of Bergen
Università degli Studi di Catania
University of Turin
Politecnico di Bari
University of Rijeka
University of Würzburg
University of Geneva
University of Turku
University of São Paulo
Hiroshima University
National Academy of Sciences of Armenia
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split
Josip Juraj Strossmayer University of Osijek
Tokai University
University of Siena
An OCC of Homi Bhabha National Institute
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
Yamagata University
University of Oulu
Kyoto University
Nagoya University
Ruđer Bošković Institute
INFN Sezione di Perugia
INFN Roma Tor Vergata
Konan University
University of Namibia
Dublin Institute for Advanced Studies
Max-Planck-Institut für Kernphysik
Landessternwarte Heidelberg
Aix-Marseille Université
North-West University
Institute for Nuclear Physics
University of the Witwatersrand, Johannesburg
Astroparticule and Cosmol APC
Linnaeus University, Växjö
Humboldt-Universität zu Berlin
LUTH - Laboratoire de l'Univers et de ses Theories
Universités Paris VI and VII
Université Savoie Mont Blanc
Université Paris-Saclay
University of Warsaw
University of Oxford
Univ. Bordeaux
University of Potsdam
Ip Paris
Friedrich-Alexander University (FAU) Erlangen-Nürnberg and Universitätsklinikum Erlangen
Leopold-Fr anzens-Universität Inns- bruck
Universität Hamburg
Uniwer sytet Ja giellonski
Nicolaus Copernicus University
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
University of Tübingen
University of Leicester
University of Amsterdam
Laboratoire Univers et Particules de Montpellier
University of Adelaide
Riken
Rikkyo University
University of the Free State
University of Groningen
University of Alabama
Columbia University
Center for Astrophysics | Harvard & Smithsonian
Barnard College
California Polytechnic State University, San Luis Obispo
Iowa State University
Washington University in St. Louis
Pennsylvania State University
Purdue University
The Bartol Research Institute
University of Minnesota
California State University - East Bay
College of Computing
University of California at Santa Cruz
University of Utah
University of Iowa
DePauw University
McGill University
IDA Business Park
University College Dublin
Ball State University
Anderson University
University of California, Los Angeles
Queen's University
Cork Institute of Technology
Indiana University-Purdue University (IUPUI)
Universidad Politecnica de Catalunia
Norwegian University of Science and Technology
New York University - Abu Dhabi
Institut d’Estudis Espacials de Catalunya (IEEC)

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

MAXI J1820+070 is a low-mass X-ray binary with a black hole (BH) as a compact object. This binary underwent an exceptionally bright X-ray outburst from 2018 March to October, showing evidence of a non-thermal particle population through its radio emission during this whole period. The combined results of 59.5 h of observations of the MAXI J1820+070 outburst with the H.E.S.S., MAGIC and VERITAS experiments at energies above 200 GeV are presented, together with Fermi-LAT data between 0.1 and 500 GeV, and multiwavelength observations from radio to X-rays. Gamma-ray emission is not detected from MAXI J1820+070, but the obtained upper limits and the multiwavelength data allow us to put meaningful constraints on the source properties under reasonable assumptions regarding the non-thermal particle population and the jet synchrotron spectrum. In particular, it is possible to show that, if a high-energy (HE) gamma-ray emitting region is present during the hard state of the source, its predicted flux should be at most a factor of 20 below the obtained Fermi-LAT upper limits, and closer to them for magnetic fields significantly below equipartition. During the state transitions, under the plausible assumption that electrons are accelerated up to ∼500 GeV, the multiwavelength data and the gamma-ray upper limits lead consistently to the conclusion that a potential HE and very-HE gamma-ray emitting region should be located at a distance from the BH ranging between 1011 and 1013 cm. Similar outbursts from low-mass X-ray binaries might be detectable in the near future with upcoming instruments such as CTA.

langue originale	Anglais
Pages (de - à)	4736-4751
Nombre de pages	16
journal	Monthly Notices of the Royal Astronomical Society
Volume	517
Numéro de publication	4
Les DOIs	https://doi.org/10.1093/mnras/stac2686
état	Publié - 1 déc. 2022

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10.1093/mnras/stac2686

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@article{24ac38b8a38f49668673c91c4a823511,

title = "Gamma-ray observations of MAXI J1820+070 during the 2018 outburst",

abstract = "MAXI J1820+070 is a low-mass X-ray binary with a black hole (BH) as a compact object. This binary underwent an exceptionally bright X-ray outburst from 2018 March to October, showing evidence of a non-thermal particle population through its radio emission during this whole period. The combined results of 59.5 h of observations of the MAXI J1820+070 outburst with the H.E.S.S., MAGIC and VERITAS experiments at energies above 200 GeV are presented, together with Fermi-LAT data between 0.1 and 500 GeV, and multiwavelength observations from radio to X-rays. Gamma-ray emission is not detected from MAXI J1820+070, but the obtained upper limits and the multiwavelength data allow us to put meaningful constraints on the source properties under reasonable assumptions regarding the non-thermal particle population and the jet synchrotron spectrum. In particular, it is possible to show that, if a high-energy (HE) gamma-ray emitting region is present during the hard state of the source, its predicted flux should be at most a factor of 20 below the obtained Fermi-LAT upper limits, and closer to them for magnetic fields significantly below equipartition. During the state transitions, under the plausible assumption that electrons are accelerated up to ∼500 GeV, the multiwavelength data and the gamma-ray upper limits lead consistently to the conclusion that a potential HE and very-HE gamma-ray emitting region should be located at a distance from the BH ranging between 1011 and 1013 cm. Similar outbursts from low-mass X-ray binaries might be detectable in the near future with upcoming instruments such as CTA.",

keywords = "X-rays: binaries, gamma rays: general, stars: black holes, stars: individual: MAXI J1820+070",

author = "\{The VERITAS Collaboration\} and \{the H.E.S.S. Collaboration\} and \{The MAGIC Collaboration\} and H. Abe and S. Abe and Acciari, \{V. A.\} and T. Aniello and S. Ansoldi and Antonelli, \{L. A.\} and \{Arbet Engels\}, A. and C. Arcaro and M. Artero and K. Asano and D. Baack and A. Babi{\'c} and A. Baquero and \{De Almeida\}, \{U. Barres\} and Barrio, \{J. A.\} and I. Batkovi{\'c} and J. Baxter and \{Becerra Gonz{\'a}lez\}, J. and W. Bednarek and E. Bernardini and M. Bernardos and A. Berti and J. Besenrieder and W. Bhattacharyya and C. Bigongiari and A. Biland and O. Blanch and G. Bonnoli and Z. Bo{\v s}njak and I. Burelli and G. Busetto and R. Carosi and M. Carretero-Castrillo and G. Ceribella and Y. Chai and A. Chilingarian and S. Cikota and E. Colombo and Contreras, \{J. L.\} and J. Cortina and S. Covino and G. D'Amico and V. D'Elia and \{Da Vela\}, P. and F. Dazzi and \{De Angelis\}, A. and \{De Lotto\}, B. and \{Del Popolo\}, A. and M. Delfino and H. Ashkar",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s).",

year = "2022",

month = dec,

day = "1",

doi = "10.1093/mnras/stac2686",

language = "English",

volume = "517",

pages = "4736--4751",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

number = "4",

}

TY - JOUR

T1 - Gamma-ray observations of MAXI J1820+070 during the 2018 outburst

AU - The VERITAS Collaboration

AU - the H.E.S.S. Collaboration

AU - The MAGIC Collaboration

AU - Abe, H.

AU - Abe, S.

AU - Acciari, V. A.

AU - Aniello, T.

AU - Ansoldi, S.

AU - Antonelli, L. A.

AU - Arbet Engels, A.

AU - Arcaro, C.

AU - Artero, M.

AU - Asano, K.

AU - Baack, D.

AU - Babić, A.

AU - Baquero, A.

AU - De Almeida, U. Barres

AU - Barrio, J. A.

AU - Batković, I.

AU - Baxter, J.

AU - Becerra González, J.

AU - Bednarek, W.

AU - Bernardini, E.

AU - Bernardos, M.

AU - Berti, A.

AU - Besenrieder, J.

AU - Bhattacharyya, W.

AU - Bigongiari, C.

AU - Biland, A.

AU - Blanch, O.

AU - Bonnoli, G.

AU - Bošnjak, Z.

AU - Burelli, I.

AU - Busetto, G.

AU - Carosi, R.

AU - Carretero-Castrillo, M.

AU - Ceribella, G.

AU - Chai, Y.

AU - Chilingarian, A.

AU - Cikota, S.

AU - Colombo, E.

AU - Contreras, J. L.

AU - Cortina, J.

AU - Covino, S.

AU - D'Amico, G.

AU - D'Elia, V.

AU - Da Vela, P.

AU - Dazzi, F.

AU - De Angelis, A.

AU - De Lotto, B.

AU - Del Popolo, A.

AU - Delfino, M.

AU - Ashkar, H.

PY - 2022/12/1

Y1 - 2022/12/1

N2 - MAXI J1820+070 is a low-mass X-ray binary with a black hole (BH) as a compact object. This binary underwent an exceptionally bright X-ray outburst from 2018 March to October, showing evidence of a non-thermal particle population through its radio emission during this whole period. The combined results of 59.5 h of observations of the MAXI J1820+070 outburst with the H.E.S.S., MAGIC and VERITAS experiments at energies above 200 GeV are presented, together with Fermi-LAT data between 0.1 and 500 GeV, and multiwavelength observations from radio to X-rays. Gamma-ray emission is not detected from MAXI J1820+070, but the obtained upper limits and the multiwavelength data allow us to put meaningful constraints on the source properties under reasonable assumptions regarding the non-thermal particle population and the jet synchrotron spectrum. In particular, it is possible to show that, if a high-energy (HE) gamma-ray emitting region is present during the hard state of the source, its predicted flux should be at most a factor of 20 below the obtained Fermi-LAT upper limits, and closer to them for magnetic fields significantly below equipartition. During the state transitions, under the plausible assumption that electrons are accelerated up to ∼500 GeV, the multiwavelength data and the gamma-ray upper limits lead consistently to the conclusion that a potential HE and very-HE gamma-ray emitting region should be located at a distance from the BH ranging between 1011 and 1013 cm. Similar outbursts from low-mass X-ray binaries might be detectable in the near future with upcoming instruments such as CTA.

AB - MAXI J1820+070 is a low-mass X-ray binary with a black hole (BH) as a compact object. This binary underwent an exceptionally bright X-ray outburst from 2018 March to October, showing evidence of a non-thermal particle population through its radio emission during this whole period. The combined results of 59.5 h of observations of the MAXI J1820+070 outburst with the H.E.S.S., MAGIC and VERITAS experiments at energies above 200 GeV are presented, together with Fermi-LAT data between 0.1 and 500 GeV, and multiwavelength observations from radio to X-rays. Gamma-ray emission is not detected from MAXI J1820+070, but the obtained upper limits and the multiwavelength data allow us to put meaningful constraints on the source properties under reasonable assumptions regarding the non-thermal particle population and the jet synchrotron spectrum. In particular, it is possible to show that, if a high-energy (HE) gamma-ray emitting region is present during the hard state of the source, its predicted flux should be at most a factor of 20 below the obtained Fermi-LAT upper limits, and closer to them for magnetic fields significantly below equipartition. During the state transitions, under the plausible assumption that electrons are accelerated up to ∼500 GeV, the multiwavelength data and the gamma-ray upper limits lead consistently to the conclusion that a potential HE and very-HE gamma-ray emitting region should be located at a distance from the BH ranging between 1011 and 1013 cm. Similar outbursts from low-mass X-ray binaries might be detectable in the near future with upcoming instruments such as CTA.

KW - X-rays: binaries

KW - gamma rays: general

KW - stars: black holes

KW - stars: individual: MAXI J1820+070

U2 - 10.1093/mnras/stac2686

DO - 10.1093/mnras/stac2686

M3 - Article

AN - SCOPUS:85145348890

SN - 0035-8711

VL - 517

SP - 4736

EP - 4751

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 4

ER -

Gamma-ray observations of MAXI J1820+070 during the 2018 outburst

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