A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
MAGIC very large zenith angle observations of the Crab Nebula up to 100 TeV
Tekijät: Acciari V.A., Ansoldi S., Antonelli L.A., Arbet Engels A., Baack D., Babić A., Banerjee B., Barres De Almeida U., Barrio J.A., Becerra González J., Bednarek W., Bellizzi L., Bernardini E., Berti A., Besenrieder J., Bhattacharyya W., Bigongiari C., Biland A., Blanch O., Bonnoli G., Bošnjak Z., Busetto G., Carosi R., Ceribella G., Chai Y., Chilingaryan A., Cikota S., Colak S.M., Colin U., Colombo E., Contreras J.L., Cortina J., Covino S., D'Elia V., Da Vela P., Dazzi F., De Angelis A., De Lotto B., Delfino M., Delgado J., 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., Ferrara G., Fidalgo D., Foffano L., Fonseca M.V., Font L., Fruck C., Fukami S., García López R.J., Garczarczyk M., Gasparyan S., Gaug M., Giglietto N., Giordano F., Godinović N., Green D., Guberman D., Hadasch D., Hahn A., Herrera J., Hoang J., Hrupec D., Hütten M., Inada T., Inoue S., Ishio K., Iwamura Y., Jouvin L., Kerszberg D., Kubo H., Kushida J., Lamastra A., Lelas D., Leone F., Lindfors E., Lombardi S., Longo F., López M., López-Coto R., 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., Mićanović S., Miceli D., Minev M., Miranda J.M., Mirzoyan R., Molina E., Moralejo A., Morcuende D., Moreno V., Moretti E., Munar-Adrover P., Neustroev V., Nigro C., Nilsson K., Ninci D., Nishijima K., Noda K., Nogués L., Nozaki S., Paiano S., Palacio J., Palatiello M., Paneque D., Paoletti R., Paredes J.M., Peñil P., Peresano M., Persic M., Prada Moroni P.G., Prandini E., Puljak I., Rhode W., Ribó M., Rico J., Righi C., Rugliancich A., Saha L., Sahakyan N., Saito T., Sakurai S., Satalecka K., Schmidt K., Schweizer T., Sitarek J., Šnidarić I., Sobczynska D., Somero A., Stamerra A., Strom D., Strzys M., Suda Y., Surić T., Takahashi M., Tavecchio F., Temnikov P., Terzić T., Teshima M., Torres-Albà N., Tosti L., Vagelli V., Van Scherpenberg J., Vanzo G., Vazquez Acosta M., Vigorito C.F., Vitale V., Vovk I., Will M., Zarić D.
Kustantaja: EDP SCIENCES S A
Julkaisuvuosi: 2020
Journal: Astronomy and Astrophysics
Tietokannassa oleva lehden nimi: ASTRONOMY & ASTROPHYSICS
Lehden akronyymi: ASTRON ASTROPHYS
Artikkelin numero: ARTN A158
Vuosikerta: 635
Sivujen määrä: 10
ISSN: 0004-6361
eISSN: 1432-0746
DOI: https://doi.org/10.1051/0004-6361/201936899
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/47359776
Aims. We measure the Crab Nebula gamma-ray spectral energy distribution in the 100 TeV energy domain and test the validity of existing leptonic emission models at these high energies.Methods. We used the novel very large zenith angle observations with the MAGIC telescope system to increase the collection area above 10 TeV. We also developed an auxiliary procedure of monitoring atmospheric transmission in order to assure proper calibration of the accumulated data. This employs recording optical images of the stellar field next to the source position, which provides a better than 10% accuracy for the transmission measurements.Results. We demonstrate that MAGIC very large zenith angle observations yield a collection area larger than a square kilometer. In only 56 h of observations, we detect the gamma-ray emission from the Crab Nebula up to 100 TeV, thus providing the highest energy measurement of this source to date with Imaging Atmospheric Cherenkov Telescopes. Comparing accumulated and archival MAGIC and Fermi/LAT data with some of the existing emission models, we find that none of them provides an accurate description of the 1 GeV to 100 TeV gamma-ray signal.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
