Gamma-ray observations of MAXI J1820+070 during the 2018 outburst
: Abe H., Abe S., Acciari V.A., Aniello T., Ansoldi S., Antonelli L.A., Arbet Engels A., Arcaro C., Artero M., Asano K., Baack D., Babić A., Baquero A., De Almeida U.B., Barrio J.A., Batković I., Baxter J., Becerra González J., Bednarek W., Bernardini E., Bernardos M., Berti A., Besenrieder J., Bhattacharyya W., Bigongiari C., Biland A., Blanch O., Bonnoli G., Bošnjak Z., Burelli I., Busetto G., Carosi R., Carretero-Castrillo M., Ceribella G., Chai Y., Chilingarian A., Cikota S., Colombo E., Contreras J.L., Cortina J., Covino S., D'Amico G., D'Elia V., Da Vela P., Dazzi F., De Angelis A., De Lotto B., Del Popolo A., Delfino M., Delgado J., Delgado Mendez C., Depaoli D., Di Pierro F., Di Venere L., Dominis Prester D., Donini A., Dorner D., Doro M., Elsaesser D., Emery G., Fallah Ramazani Vandad, Farina L., Fattorini A., Font L., Fruck C., Fukami S., Fukazawa Y., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giesbrecht Paiva J.G., Giglietto N., Giordano F., Gliwny P., Godinović N., Grau R., Green D., Green J.G., Hadasch D., Hahn A., Hassan T., Heckmann L., Herrera J., Hoang J., Hrupec D., Hutten M., Imazawa R., Inada T., Iotov R., Ishio K., Jimenez Martínez I., Jormanainen J., Kerszberg D., Kobayashi Y., Kubo H., Kushida J., Lamastra A., Lelas D., Leone F., Lindfors E., Linhoff L., Lombardi S., Longo F., López-Coto R., López-Moya M., López-Oramas A., Loporchio S., Lorini A., Lyard E., De Oliveira Fraga B.M., Majumdar P., Makariev M., Maneva G., Mang N., Manganaro M., Mangano S., Mannheim K., Mariotti M., Martínez M., Mas Aguilar A., Mazin D., Menchiari S., Mender S., Mićanović S., Miceli D., Miener T., Miranda J.M., Mirzoyan R., Molina E., Mondal H.A., Moralejo A., Morcuende D., Moreno V., Nakamori T., Nanci C., Nava L., Neustroev V., Nievas Rosillo M., Nigro C., Nilsson Kari, Nishijima K., Njoh Ekoume T., Noda K., Nozaki S., Ohtani Y., Oka T., Okumura A., Otero-Santos J., Paiano S., Palatiello M., Paneque D., Paoletti R., Paredes J.M., Pavletić L., Persic M., Pihet M., Pirola G., Podobnik F., Prada Moroni P.G., Prandini E., Principe G., Priyadarshi C., Puljak I., Rhode W., Ribó M., Rico J., Righi C., Rugliancich A., Sahakyan N., Saito T., Sakurai S., Satalecka K., Saturni F.G., Schleicher B., Schmidt K., Schmuckermaier F., Schubert J.L., Schweizer T., Sitarek J., Sliusar V., Sobczynska D., Spolon A., Stamerra A., Strišković J., Strom D., Strzys M., Suda Y., Surić T., Tajima H., Takahashi M., Takeishi R., Tavecchio F., Temnikov P., Terauchi K., Terzić T., Teshima M., Tosti L., Truzzi S., Tutone A., Ubach S., Van Scherpenberg J., Vazquez Acosta M., Ventura S., Verguilov V., Viale I., Vigorito C.F., Vitale V., Vovk I., Walter R., Will M., Wunderlich C., Yamamoto T., Zarić D., Abdalla H., Aharonian F., Ait Benkhali F., Anguner E.O., Ashkar H., Backes M., Baghmanyan V., Barbosa Martins V., Batzofin R., Becherini Y., Berge D., Bernlohr K., Bottcher M., Boisson C., Bolmont J., De Bony de Lavergne M., Bradascio F., Breuhaus M., Brose R., Brun F., Bulik T., Bylund T., Cangemi F., Caroff S., Casanova S., Cerruti M., Chand T., Chandra S., Chen A., Chibueze O.U., Cotter G., Cristofari P., Damascene Mbarubucyeye J., Devin J., Djannati-Atai A., Dmytriiev A., Egberts K., Ernenwein J.P., Fiasson A., De Clairfontaine G.F., Fontaine G., Fußsling M., Funk S., Gabici S., Ghafourizadeh S., Giavitto G., Glawion D., Glicenstein J.F., Goswami P., Grolleron G., Hinton J.A., Horbe M., Hoischen C., Holch T.L., Holler M., Horns D., Huang Z., Jamrozy M., Jankowsky F., Joshi V., Jung-Richardt I., Kasai E., Katarzynski K., Katz U., Khelifi B., Kluzniak W., Komin N., Kosack K., Kostunin D., Lang R.G., Le Stum S., Lemiere A., Lemoine-Goumard M., Lenain J.P., Leuschner F., Lohse T., Luashvili A., Lypova I., Mackey J., Majumdar J., Malyshev D., Malyshev D., Marandon V., Marchegiani P., Marti-Devesa G., Marx R., Maurin G., Meyer M., Mitchell A., Moderski R., Mohrmann L., Montanari A., Moulin E., Muller J., Murach T., Nakashima K., De Naurois M., Nayerhoda A., Niemiec J., Priyana Noel A., O'Brien P., Ohm S., Olivera-Nieto L., De Ona Wilhelmi E., Ostrowski M., Panny S., Panter M., Parsons R.D., Poireau V., Prokhorov D.A., Prokoph H., Puhlhofer G., Punch M., Quirrenbach A., Reichherzer P., Reimer A., Reimer O., Renaud M., Rieger F., Rowell G., Rudak B., Rueda Ricarte H., Ruiz-Velasco E., Sahakian V., Salzmann H., Santangelo A., Sasaki M., Schafer J., Schussler F., Schutte H.M., Schwanke U., Shapopi J.N.S., Sol H., Specovius A., Spencer S., Stawarz , Steenkamp R., Steinmassl S., Steppa C., Sushch I., Suzuki H., Takahashi T., Tanaka T., Thorpe-Morgan C., Tluczykont M., Tomankova L., Tsuji N., Uchiyama Y., Van Eldik C., Van Soelen B., Vecchi M., Veh J., Venter C., Vink J., Wagner S.J., White R., Wierzcholska A., Wong Y.W., Yusafzai A., Zacharias M., Zanin R., Zargaryan D., Zdziarski A.A., Zech A., Zhu S.J., Zouari S., Zywucka N., Acharyya A., Adams C.B., Batista P., Benbow W., Capasso M., Christiansen J.L., Chromey A.J., Errando M., Falcone A., Feng Q., Finley J.P., Foote G.M., Fortson L., Furniss A., Gent A., Hanlon W.F., Hervet O., Holder J., Hona B., Humensky T.B., Jin W., Kaaret P., Kertzman M., Kherlakian M., Kleiner T.K., Kumar S., Lang M.J., Lundy M., Maier G., McGrath C.E., Millis J., Moriarty P., Mukherjee R., O'Brien S., Ong R.A., Park N., Patel S.R., Pfrang K., Pohl M., Pueschel E., Quinn J., Ragan K., Reynolds P.T., Ribeiro D., Roache E., Ryan J.L., Sadeh I., Saha L., Santander M., Sembroski G.H., Shang R., Splettstoesser M., Tak D., Tucci J.V., Weinstein A., Williams D.A., Williamson T.J., Bosch-Ramon V., Celma C., Linares M., Russell D.M., Sala G.
Publisher: Oxford University Press
: 2022
: Monthly Notices of the Royal Astronomical Society
: Monthly Notices of the Royal Astronomical Society
: 517
: 4
: 4736
: 4751
DOI: https://doi.org/10.1093/mnras/stac2686(external)
: https://doi.org/10.1093/mnras/stac2686(external)
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.