Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/69075
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Full metadata record
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dc.contributor.author | Maxted, N. | - |
dc.contributor.author | Nicholas, B. | - |
dc.contributor.author | Rowell, G. | - |
dc.date.issued | 2011 | - |
dc.identifier.citation | Astronomy and Astrophysics: a European journal, 2011; 531:A81-1-A81-9 | - |
dc.identifier.issn | 0004-6361 | - |
dc.identifier.issn | 1432-0746 | - |
dc.identifier.uri | http://hdl.handle.net/2440/69075 | - |
dc.description.abstract | Aims: The recent discovery of the radio shell-type supernova remnant (SNR), G353.6-0.7, in spatial coincidence with the unidentified TeV source HESS J1731−347 has motivated further observations of the source with the High Energy Stereoscopic System (HESS) Cherenkov telescope array to test a possible association of the γ-ray emission with the SNR. Methods: With a total of 59 h of observation, representing about four times the initial exposure available in the discovery paper of HESS J1731−347, the γ-ray morphology is investigated and compared with the radio morphology. An estimate of the distance is derived by comparing the interstellar absorption derived from X-rays and the one obtained from 12CO and HI observations. Results: The deeper γ-ray observation of the source has revealed a large shell-type structure with similar position and extension (r ~ 0.25°) as the radio SNR, thus confirming their association. By accounting for the HESS angular resolution and projection effects within a simple shell model, the radial profile is compatible with a thin, spatially unresolved, rim. Together with RX J1713.7−3946, RX J0852.0−4622 and SN 1006, HESS J1731−347 is now the fourth SNR with a significant shell morphology at TeV energies. The derived lower limit on the distance of the SNR of 3.2 kpc is used together with radio and X-ray data to discuss the possible origin of the γ-ray emission, either via inverse Compton scattering of electrons or the decay of neutral pions resulting from proton-proton interaction. | - |
dc.description.statementofresponsibility | HESS Collaboration, A. Abramowski ... M. Maxted ... B. Nicholas ... G. Rowell ... et al. | - |
dc.language.iso | en | - |
dc.publisher | EDP Sciences | - |
dc.rights | © ESO 2011 | - |
dc.source.uri | http://dx.doi.org/10.1051/0004-6361/201016425 | - |
dc.subject | Astroparticle physics | - |
dc.subject | ISM: supernova remnants | - |
dc.subject | cosmic rays | - |
dc.title | A new SNR with TeV shell-type morphology: HESS J1731-347 | - |
dc.type | Journal article | - |
dc.contributor.organisation | H.E.S.S. Collaboration | - |
dc.identifier.doi | 10.1051/0004-6361/201016425 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Rowell, G. [0000-0002-9516-1581] | - |
Appears in Collections: | Aurora harvest IPAS publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_69075.pdf | Published Version | 1.09 MB | Adobe PDF | View/Open |
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