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https://hdl.handle.net/2440/112350
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dc.contributor.author | Fukui, Y. | - |
dc.contributor.author | Sano, H. | - |
dc.contributor.author | Sato, J. | - |
dc.contributor.author | Okamoto, R. | - |
dc.contributor.author | Fukuda, T. | - |
dc.contributor.author | Yoshiike, S. | - |
dc.contributor.author | Hayashi, K. | - |
dc.contributor.author | Torii, K. | - |
dc.contributor.author | Hayakawa, T. | - |
dc.contributor.author | Rowell, G. | - |
dc.contributor.author | Filipović, M. | - |
dc.contributor.author | Maxted, N. | - |
dc.contributor.author | Mcclure-Griffiths, N. | - |
dc.contributor.author | Kawamura, A. | - |
dc.contributor.author | Yamamoto, H. | - |
dc.contributor.author | Okuda, T. | - |
dc.contributor.author | Mizuno, N. | - |
dc.contributor.author | Tachihara, K. | - |
dc.contributor.author | Onishi, T. | - |
dc.contributor.author | Mizuno, A. | - |
dc.contributor.author | et al. | - |
dc.date.issued | 2017 | - |
dc.identifier.citation | The Astrophysical Journal: an international review of astronomy and astronomical physics, 2017; 850(1):71-1-71-19 | - |
dc.identifier.issn | 0004-637X | - |
dc.identifier.issn | 1538-4357 | - |
dc.identifier.uri | http://hdl.handle.net/2440/112350 | - |
dc.description.abstract | We present a new analysis of the interstellar protons toward the TeV γ-ray SNR RX J0852.0−4622 (G266.2−1.2, Vela Jr.). We used the NANTEN2 12CO(J = 1–0) and Australia Telescope Compact Array and Parkes H i data sets in order to derive the molecular and atomic gas associated with the TeV γ-ray shell of the SNR. We find that atomic gas over a velocity range from V LSR = −4 to 50 km s−1 or 60 km s−1 is associated with the entire SNR, while molecular gas is associated with a limited portion of the SNR. The large velocity dispersion of the H i is ascribed to the expanding motion of a few H i shells overlapping toward the SNR but is not due to the Galactic rotation. The total masses of the associated H i and molecular gases are estimated to be $\sim 2.5\times {10}^{4}$ M ⊙ and ~103 M ⊙, respectively. A comparison with the High Energy Stereoscopic System TeV γ-rays indicates that the interstellar protons have an average density around 100 cm−3 and shows a good spatial correspondence with the TeV γ-rays. The total cosmic-ray proton energy is estimated to be ~1048 erg for the hadronic γ-ray production, which may still be an underestimate by a factor of a few due to a small filling factor of the SNR volume by the interstellar protons. This result presents a third case, after RX J1713.7−3946 and HESS J1731−347, of the good spatial correspondence between the TeV γ-rays and the interstellar protons, lending further support for a hadronic component in the γ-rays from young TeV γ-ray SNRs. | - |
dc.description.statementofresponsibility | Y. Fukui, H. Sano, J. Sato, R. Okamoto, T. Fukuda ... Gavin P. Rowell ... et al. | - |
dc.language.iso | en | - |
dc.publisher | IOP Publishing | - |
dc.rights | © 2017. The American Astronomical Society. All rights reserved. | - |
dc.source.uri | http://dx.doi.org/10.3847/1538-4357/aa9219 | - |
dc.subject | Cosmic rays-gamma rays: ISM-ISM: clouds-ISM: individual objects (RX J0852.0-4622)-ISM: supernova remnants | - |
dc.title | A detailed study of the interstellar protons toward the TeV γ-Ray SNR RX J0852.0-4622 (G266.2-1.2, Vela Jr.): the third case of the γ-Ray and ISM spatial correspondence | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.3847/1538-4357/aa9219 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Rowell, G. [0000-0002-9516-1581] | - |
Appears in Collections: | Aurora harvest 8 Chemistry and Physics publications |
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