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https://hdl.handle.net/2440/92584
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dc.contributor.author | H.E.S.S. Collaboration, | - |
dc.contributor.author | Abramowski, A. | - |
dc.contributor.author | Aharonian, F. | - |
dc.contributor.author | Ait Benkhali, F. | - |
dc.contributor.author | Akhperjanian, A. | - |
dc.contributor.author | Angüner, E. | - |
dc.contributor.author | Anton, G. | - |
dc.contributor.author | Balenderan, S. | - |
dc.contributor.author | Balzer, A. | - |
dc.contributor.author | Barnacka, A. | - |
dc.contributor.author | Becherini, Y. | - |
dc.contributor.author | Becker Tjus, J. | - |
dc.contributor.author | Bernlöhr, K. | - |
dc.contributor.author | Birsin, E. | - |
dc.contributor.author | Bissaldi, E. | - |
dc.contributor.author | Biteau, J. | - |
dc.contributor.author | Böttcher, M. | - |
dc.contributor.author | Boisson, C. | - |
dc.contributor.author | Bolmont, J. | - |
dc.contributor.author | Bordas, P. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2014 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 2014; 441(1):790-799 | - |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.issn | 1365-2966 | - |
dc.identifier.uri | http://hdl.handle.net/2440/92584 | - |
dc.description.abstract | The non-thermal nature of the X-ray emission from the shell-type supernova remnants (SNRs) G1.9+0.3 and G330.2+1.0 is an indication of intense particle acceleration in the shock fronts of both objects. This suggests that the SNRs are prime candidates for very-high-energy (VHE; E > 0.1 TeV) γ-ray observations. G1.9+0.3, recently established as the youngest known SNR in the Galaxy, also offers a unique opportunity to study the earliest stages of SNR evolution in the VHE domain. The purpose of this work is to probe the level of VHE γ-ray emission from both SNRs and use this to constrain their physical properties. Observations were conducted with the H.E.S.S. (High Energy Stereoscopic System) Cherenkov Telescope Array over a more than six-year period spanning 2004–2010. The obtained data have effective livetimes of 67 h for G1.9+0.3 and 16 h for G330.2+1.0. The data are analysed in the context of the multiwavelength observations currently available and in the framework of both leptonic and hadronic particle acceleration scenarios. No significant γ-ray signal from G1.9+0.3 or G330.2+1.0 was detected. Upper limits (99 per cent confidence level) to the TeV flux from G1.9+0.3 and G330.2+1.0 for the assumed spectral index Γ = 2.5 were set at 5.6 × 10−13 cm−2 s−1 above 0.26 TeV and 3.2 × 10−12 cm−2 s−1 above 0.38 TeV, respectively. In a one-zone leptonic scenario, these upper limits imply lower limits on the interior magnetic field to BG1.9 ≳ 12 μG for G1.9+0.3 and to BG330 ≳ 8 μG for G330.2+1.0. In a hadronic scenario, the low ambient densities and the large distances to the SNRs result in very low predicted fluxes, for which the H.E.S.S. upper limits are not constraining. | - |
dc.description.statementofresponsibility | H.E.S.S. Collaboration ... P. deWilt ... N. Maxted ... G. Rowell ... et al. | - |
dc.language.iso | en | - |
dc.publisher | Published by Oxford University Press on behalf of the Royal Astronomical Society | - |
dc.rights | © 2014 The Authors | - |
dc.source.uri | http://dx.doi.org/10.1093/mnras/stu459 | - |
dc.subject | radiation mechanisms: non-thermal; ISM: individual objects: SNR G1.9+0.3; ISM: individual objects: SNR G330.2+1.0; ISM: magnetic fields; ISM: supernova remnants; gamma-rays: ISM | - |
dc.title | TeV γ-ray observations of the young synchrotron-dominated SNRs G1.9+0.3 and G330.2+1.0 with H.E.S.S. | - |
dc.title.alternative | TeV gamma-ray observations of the young synchrotron-dominated SNRs G1.9+0.3 and G330.2+1.0 with H.E.S.S. | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1093/mnras/stu459 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Rowell, G. [0000-0002-9516-1581] | - |
Appears in Collections: | Aurora harvest 7 IPAS publications |
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