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Astrophysics > High Energy Astrophysical Phenomena

arXiv:1801.06020 (astro-ph)
[Submitted on 18 Jan 2018 (v1), last revised 27 Apr 2018 (this version, v2)]

Title:A search for new supernova remnant shells in the Galactic plane with H.E.S.S

Authors:H.E.S.S. Collaboration: H. Abdalla, A. Abramowski, F. Aharonian, F. Ait Benkhali, A.G. Akhperjanian, T. Andersson, E.O. Angüner, M. Arakawa, M. Arrieta, P. Aubert, M. Backes, A. Balzer, M. Barnard, Y. Becherini, J. Becker Tjus, D. Berge, S. Bernhard, K. Bernlöhr, R. Blackwell, M. Böttcher, C. Boisson, J. Bolmont, S. Bonnefoy, P. Bordas, J. Bregeon, F. Brun, P. Brun, M. Bryan, M. Büchele, T. Bulik, M. Capasso, J. Carr, S. Casanova, M. Cerruti, N. Chakraborty, R.C.G. Chaves, A. Chen, J. Chevalier, M. Coffaro, S. Colafrancesco, G. Cologna, B. Condon, J. Conrad, Y. Cui, I.D. Davids, J. Decock, B. Degrange, C. Deil, J. Devin, P. deWilt, L. Dirson, A. Djannati-Ataï, W. Domainko, A. Donath, L.O'C. Drury, K. Dutson, J. Dyks, T. Edwards, K. Egberts, P. Eger, J.-P. Ernenwein, S. Eschbach, C. Farnier, S. Fegan, M.V. Fernandes, A. Fiasson, G. Fontaine, A. Förster, S. Funk, M. Füßling, S. Gabici, M. Gajdus, Y.A. Gallant, T. Garrigoux, G. Giavitto, B. Giebels, J.F. Glicenstein, D. Gottschall, A. Goyal, M.-H. Grondin, J. Hahn, M. Haupt, J. Hawkes, G. Heinzelmann, G. Henri, G. Hermann, O. Hervet, J.A. Hinton, W. Hofmann, C. Hoischen, T. L. Holch, M. Holler, D. Horns, A. Ivascenko, H. Iwasaki, A. Jacholkowska, M. Jamrozy, M. Janiak, D. Jankowsky et al. (165 additional authors not shown)  You must enable JavaScript to view entire author list.
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Abstract:A search for new supernova remnants (SNRs) has been conducted using TeV gamma-ray data from the H.E.S.S. Galactic plane survey. As an identification criterion, shell morphologies that are characteristic for known resolved TeV SNRs have been used. Three new SNR candidates were identified in the H.E.S.S. data set with this method. Extensive multiwavelength searches for counterparts were conducted. A radio SNR candidate has been identified to be a counterpart to HESS J1534-571. The TeV source is therefore classified as a SNR. For the other two sources, HESS J1614-518 and HESS J1912+101, no identifying counterparts have been found, thus they remain SNR candidates for the time being. TeV-emitting SNRs are key objects in the context of identifying the accelerators of Galactic cosmic rays. The TeV emission of the relativistic particles in the new sources is examined in view of possible leptonic and hadronic emission scenarios, taking the current multiwavelength knowledge into account.
Comments: Accepted for publication in A&A, 24 pages, 13 figures. Minor corrections in v2
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE)
Cite as: arXiv:1801.06020 [astro-ph.HE]
  (or arXiv:1801.06020v2 [astro-ph.HE] for this version)
  https://doi.org/10.48550/arXiv.1801.06020
Journal reference: A&A 612, A8 (2018)
Related DOI: https://doi.org/10.1051/0004-6361/201730737

Submission history

From: Gerd Pühlhofer [view email]
[v1] Thu, 18 Jan 2018 13:59:55 UTC (3,145 KB)
[v2] Fri, 27 Apr 2018 21:09:15 UTC (3,145 KB)
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