A4 Vertaisarvioitu artikkeli konferenssijulkaisussa
Discovery of TXS 1515-273 at VHE gamma rays and modelling of its Spectral Energy Distribution
Tekijät: D'Ammando F., Nabizadeh A., Bissaldi E., Orienti M., Cutini S., Acciari V.A., Ansoldi S., Antonelli L.A., Arbet Engels A., Artero M., Asano K., Baack D., Babić A., Baquero A., Barres de Almeida U., Barrio J.A., Batković I., Becerra González J., Bednarek W., Bellizzi L., Bernardini E., Bernardos M., Berti A., Besenrieder J., Bhattacharyya W., Bigongiari C., Biland A., Blanch O., Bökenkamp H., Bonnoli G., Bošnjak , Busetto G., Carosi R., Ceribella G., Cerruti M., Chai Y., Chilingarian A., Cikota S., Colak S.M., 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., Delfino M., Delgado J., Delgado Mendez C., Depaoli D., Di Pierro F., Di Venere L., Do Souto Espiñeira E., Dominis Prester D., Donini A., Dorner D., Doro M., Elsaesser D., Fallah Ramazani V., Fattorini A., Fonseca M.V., Font L., Fruck C., Fukami S., Fukazawa Y., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giglietto N., Giordano F., Gliwny P., Godinović N., Green J.G., Green D., Hadasch D., Hahn A., Heckmann L., Herrera J., Hoang J., Hrupec D., Hütten M., Inada T., Ishio K., Iwamura Y., Jiménez Martínez I., Jormanainen J., Jouvin L., Karjalainen M., 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., Machado de Oliveira Fraga B., Maggio C., Majumdar P., Makariev M., Mallamaci M., Maneva G., Manganaro M., Mannheim K., Maraschi L., Mariotti M., Martínez M., Mazin D., Menchiari S., Mender S., Mićanović S., Miceli D., Miener T., Miranda J.M., Mirzoyan R., Molina E., Moralejo A., Morcuende D., Moreno V., Moretti E., Nakamori T., Nava L., Neustroev V., Nigro C., Nilsson K., Nishijima K., Noda K., Nozaki S., Ohtani Y., Oka T., Otero-Santos J., Paiano S., Palatiello M., Paneque D., Paoletti R., Paredes J.M., Pavletić L., Peñil P., Persic M., Pihet M., Prada Moroni P.G., Prandini E., 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., Schweizer T., Sitarek J., Šnidarić I., Sobczynska D., Spolon A., Stamerra A., Strišković J., Strom D., Strzys M., Suda Y., Surić T., Takahashi M., Takeishi R., Tavecchio F., Temnikov P., Terzić T., Teshima M., Tosti L., Truzzi S., Tutone A., Ubach S., van Scherpenberg J., Vanzo G., Vazquez Acosta M., Ventura S., Verguilov V., Vigorito C.F., Vitale V., Vovk I., Will M., Wunderlich C., Yamamoto T., Zarić D.
Toimittaja: N/A
Konferenssin vakiintunut nimi: International Cosmic Ray Conference
Kustantaja: Sissa Medialab Srl
Julkaisuvuosi: 2022
Journal: POS Proceedings of Science
Kokoomateoksen nimi: 37th International Cosmic Ray Conference (ICRC2021)
Tietokannassa oleva lehden nimi: Proceedings of Science
Sarjan nimi: POS Proceedings of Science
Vuosikerta: 395
Aloitussivu: 801
ISSN: 1824-8039
DOI: https://doi.org/10.22323/1.395.0801
Verkko-osoite: https://pos.sissa.it/395/801
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/178546403
In February 2019, a flaring state of the extreme blazar candidate TXS 1515-273 was registered by the Fermi-LAT, which triggered observations with the MAGIC telescopes and the X-ray satellites Swift, XMM-Newton and NuStar. The observations led to the discovery of the source at very-high-energy (VHE, 100 GeV < E < $ 100 TeV) gamma-ray energies and the detection of short time scales of variability (1 h) in several X-ray bands.
The analysis of the observed variability helped us to constrain the physical parameters of the emission region. Thanks to the high-quality X-ray data, the synchrotron peak location was determined. The
source was classified as a high synchrotron peaked source during the flaring activity. We constructed the broadband spectral energy distribution from radio to TeV. We interpreted it assuming leptonic emission and taking into account the constraints from the X-ray variability. We tested two scenarios: a simple one-zone model and a two-component model. Both models were found to describe the data well from X-ray to VHE gamma ray, but the two-zone model allows for a more accurate modelling of the emission at radio and optical energies.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
