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| ID:
121431.0,
MPI für Kernphysik / High-Energy Astrophysics |
| Observations of the Monoceros Loop SNR region with the HEGRA system of IACTs |
| Authors: | Aharonian, F. A.; Akhperjanian, A. G.; Beilicke, M.; Bernlöhr, K.; Bojahr, H.; Bolz, O.; Borst, H.; Coarasa, T.; Contreras, J. L.; Cortina, J.; Denninghoff, S.; Fonseca, V.; Girma, M.; Götting, N.; Heinzelmann, G.; Hermann, G.; Heusler, A.; Hofmann, W.; Horns, D.; Jung, I.; Kankanyan, R.; Kestel, M.; Kettler, J.; Kohnle, A.; Konopelko, A.; Kornmeyer, H.; Kranich, D.; Krawczynski, H.; Lampeitl, H.; Lopez, M.; Lorenz, E.; Lucarelli, F.; Mang, O.; Meyer, H.; Mirzoyan, R.; Moralejo, A.; Ona, E.; Panter, M.; Plyasheshnikov, A.; Pühlhofer, G.; Rauterberg, G.; Reyes, R.; Rhode, W.; Ripken, J.; Rohring, A.; Rowell, G. P.; Sahakian, V.; Samorski, M.; Schilling, M.; Schweizer, T.; Sevilla, I.; Siems, M.; Sobczynska, D.; Stamm, W.; Tluczykont, M.; Tonello, N.; Vitale, V.; Völk, H.J.; Wagner, R.M.; Wiedner, C.A.; Wittek, W. | | Language: | English | | Date of Publication (YYYY-MM-DD): | 2004-04 | | Title of Journal: | Astronomy & Astrophysics | | Journal Abbrev.: | Astron. Astrophys. | | Volume: | 417 | | Issue / Number: | 3 | | Start Page: | 973 | | End Page: | 979 | | Review Status: | Peer-review | | Audience: | Experts Only | | Abstract / Description: | The array of 5 imaging atmospheric Cerenkov telescopes (IACTs) deployed at La Palma (Canary Islands), and operated by the HEGRA (High Energy Gamma Ray Astronomy) collaboration, was used for observations of the Monoceros Loop SNR region for a total of about 120 hrs and 20 hrs in ON-source and OFF-source mode, respectively. The giant molecular cloud Rosette Nebula appears in the sky region, close to the south-east part of the SNR rim. Using the HEGRA system of IACTs of rather large field of view (4.3 degree in diameter), we have mapped the extended sky region of associated with the Monoceros SNR/Rosette Nebula, which is centered towards the hard spectrum X-ray point source SAX J0635+533. The EGRET unidentified source of diffuse -ray emission (3EG J0634+0521) observed in the energy range between 100 MeV-10 GeV, was effectively in the field of view of our present observations. Also, the GeV source GeV J0633+0645 was within the available field of view. The performance of the IACTs array reveals an energy threshold of 500 GeV and an angular resolution of for -rays. In what follows, we present the result of the data analysis and its physical interpretation. | | Free Keywords: | gamma rays: observations -- ISM: supernova remnants -- ISM: individual objects: Monoceros Loop SNR | | External Publication Status: | published | | Document Type: | Article |
| Affiliations: | MPI für Kernphysik/Group H. J. Völk/High Energy Astrophysics (F. Aharonian)
MPI für Kernphysik/Group W. Hofmann/Experimental High-Energy Astrophysics (M. Panter, G. Hermann)
| | External Affiliations: | Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany; Univ Complutense, Fac Ciencias Fis, E-28040 Madrid, Spain; Univ Hamburg, Inst Phys Expt, D-22761 Hamburg, Germany; Univ Kiel, Inst Expt & Angew Phys, D-24118 Kiel, Germany; Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany; Yerevan Phys Inst, Yerevan 375036, Armenia
| | Identifiers: | DOI:10.1051/0004-6361:20040011 | |
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