Searching for an interstellar medium association for HESS J1534-571

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dc.contributor.authorMaxted, N.I.
dc.contributor.authorBraiding, C.
dc.contributor.authorWong, G.F.
dc.contributor.authorRowell, G.P.
dc.contributor.authorBurton, M.G.
dc.contributor.authorFilipović, M.D.
dc.contributor.authorVoisin, F.
dc.contributor.authorUrošević, D.
dc.contributor.authorVukotić, B.
dc.contributor.authorPavlović, M.Z.
dc.contributor.authorSano, H.
dc.contributor.authorFukui, Y.
dc.date.issued2018
dc.description.abstractThe Galactic supernova remnant HESSJ1534−571 (also known as G323.7 − 1.0) has a shell-like morphology in TeV gamma-ray emission and is a key object in the study of cosmic ray origin. Little is known about its distance and local environment. We examine Mopra 12CO/13CO(1–0) data, Australian Telescope Compact Array HI⁠, and Parkes HI data towards HESSJ1534−571⁠. We trace molecular clouds in at least five velocity ranges, including clumpy interstellar medium structures near a dip in HI emission at a kinematic velocity consistent with the Scutum–Crux arm at ∼3.5 kpc. This feature may be a cavity blown-out by the progenitor star, a scenario that suggests HESSJ1534−571 resulted from a core-collapse event. By employing parametrizations fitted to a sample of supernova remnants of known distance, we find that the radio continuum brightness of HESSJ1534−571 is consistent with the ∼3.5 kpc kinematic distance of the Scutum–Crux arm HI dip. Modelling of the supernova evolution suggests a ∼8–24 kyr age for HESSJ1534−571 at this distance.
dc.description.statementofresponsibilityNigel I. Maxted, C. Braiding, G. F. Wong, G. P. Rowell ... Gavin P. Rowell ... Fabien Voisin ... et al.
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2018; 480(1):134-148
dc.identifier.doi10.1093/mnras/sty1797
dc.identifier.issn0035-8711
dc.identifier.issn1365-2966
dc.identifier.orcidRowell, G.P. [0000-0002-9516-1581]
dc.identifier.urihttp://hdl.handle.net/2440/117522
dc.language.isoen
dc.publisherOxford University Press
dc.relation.grantARC
dc.relation.granthttp://purl.org/au-research/grants/arc/LE160100094
dc.rights© 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society
dc.source.urihttps://doi.org/10.1093/mnras/sty1797
dc.subjectCosmic rays, ISM: molecules, ISM: supernova remnants, gamma-rays: ISM
dc.titleSearching for an interstellar medium association for HESS J1534-571
dc.typeJournal article
pubs.publication-statusPublished

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