Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433

SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These...

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Vydáno v:Science (American Association for the Advancement of Science) Ročník 383; číslo 6681; s. 402
Hlavní autoři: Aharonian, F, Benkhali, F Ait, Aschersleben, J, Ashkar, H, Backes, M, Martins, V Barbosa, Batzofin, R, Becherini, Y, Berge, D, Bernlöhr, K, Bi, B, Böttcher, M, Boisson, C, Bolmont, J, de Lavergne, M de Bony, Borowska, J, Bouyahiaoui, M, Breuhaus, M, Brose, R, Brown, A M, Brun, F, Bruno, B, Bulik, T, Burger-Scheidlin, C, Caroff, S, Casanova, S, Cecil, R, Celic, J, Cerruti, M, Chand, T, Chandra, S, Chen, A, Chibueze, J, Chibueze, O, Cotter, G, Dai, S, Mbarubucyeye, J Damascene, Djannati-Ataï, A, Dmytriiev, A, Doroshenko, V, Egberts, K, Einecke, S, Ernenwein, J-P, Filipovic, M, Fontaine, G, Füßling, M, Funk, S, Gabici, S, Ghafourizadeh, S, Giavitto, G, Glawion, D, Glicenstein, J-F, Grolleron, G, Haerer, L, Hinton, J A, Hofmann, W, Holch, T L, Holler, M, Horns, D, Jamrozy, M, Jankowsky, F, Jardin-Blicq, A, Joshi, V, Jung-Richardt, I, Kasai, E, Katarzyński, K, Khatoon, R, Khélifi, B, Klepser, S, Kluźniak, W, Komin, Nu, Kosack, K, Kostunin, D, Kundu, A, Lang, R G, Le Stum, S, Leitl, F, Lemière, A, Lenain, J-P, Leuschner, F, Lohse, T, Luashvili, A, Lypova, I, Mackey, J, Malyshev, D, Marandon, V, Marchegiani, P, Marcowith, A, Martí-Devesa, G, Marx, R, Mehta, A, Mitchell, A, Moderski, R, Mohrmann, L, Montanari, A, Moulin, E, Murach, T, Nakashima, K, de Naurois, M
Médium: Journal Article
Jazyk:angličtina
Vydáno: United States 26.01.2024
ISSN:1095-9203, 1095-9203
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Popis
Shrnutí:SS 433 is a microquasar, a stellar binary system that launches collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.) and found an energy-dependent shift in the apparent position of the gamma-ray emission from the parsec-scale jets. These observations trace the energetic electron population and indicate that inverse Compton scattering is the emission mechanism of the gamma rays. Our modeling of the energy-dependent gamma-ray morphology constrains the location of particle acceleration and requires an abrupt deceleration of the jet flow. We infer the presence of shocks on either side of the binary system, at distances of 25 to 30 parsecs, and that self-collimation of the precessing jets forms the shocks, which then efficiently accelerate electrons.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1095-9203
1095-9203
DOI:10.1126/science.adi2048