A Supernova Remnant Counterpart for HESS J1832?085
文献类型：期刊论文
| 作者 | Maxted,Nigel I.1; Filipovi?,M. D.2; Hurley-Walker,N.3; Boji?i?,I.2; Rowell,G. P.4; Haberl,F.5; Ruiter,A. J.1; Seitenzahl,I. R.1; Panther,F.1; Wong,G. F.2,6 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2019-11-07 |
| 卷号 | 885期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | Supernova remnants Interstellar medium Interstellar molecules Gamma-ray sources Galactic cosmic-rays |
| DOI | 10.3847/1538-4357/ab3e3f |
| 英文摘要 | Abstract We examine the new Galactic supernova remnant (SNR) candidate, G23.11+0.18, as seen by the Murchison Widefield Array radio telescope. We describe the morphology of the candidate and find a spectral index of ?0.63?±?0.05 in the 70–170 MHz domain. Coincident TeV gamma-ray detection in High Energy Stereoscopic System (HESS) data supports the SNR nature of G23.11+0.18 and suggests that G23.11+0.18 is accelerating particles beyond TeV energies, thus making this object a promising new cosmic-ray hadron source candidate. The remnant cannot be seen in current optical, infrared and X-ray data sets. We do find, however, a dip in CO-traced molecular gas at a line-of-sight velocity of ～85 km s?1, suggesting the existence of a G23.11+0.18 progenitor wind-blown bubble. Furthermore, the discovery of molecular gas clumps at a neighboring velocity toward HESS J1832?085 adheres to the notion that a hadronic gamma-ray production mechanism is plausible toward the north of the remnant. Based on these morphological arguments, we propose an interstellar medium association for G23.11+0.18 at a kinematic distance of 4.6?±?0.8 kpc. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-885-2-AB3E3F |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/28616]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.School of Science, The University of New South Wales, Australian Defence Force Academy, Canberra 2610, Australia; n.maxted.astro@gmail.com 2.Western Sydney University, Locked Bag 1797, Penrith, NSW 2751, Australia 3.International Centre for Radio Astronomy Research, Curtin University, Bentley, WA 6102, Australia 4.School of Physical Sciences, The University of Adelaide, Adelaide 5005, Australia 5.Max-Planck-Institut für extraterrestrische Physik, Giessenbachstra?e, D-85748 Garching, Germany 6.School of Physics, The University of New South Wales, Sydney 2052, Australia 7.Armagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, UK 8.Institut für Astronomie und Astrophysik, Universit?t Tübingen, D-72076 Tübingen, Germany 9.Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan 10.Dr. Karl Remeis Observatory and ECAP, Universit?t Erlangen-Nürnberg, Sternwartstr. 7, D-96049 Bamberg, Germany |
| 推荐引用方式 GB/T 7714 | Maxted,Nigel I.,Filipovi?,M. D.,Hurley-Walker,N.,et al. A Supernova Remnant Counterpart for HESS J1832?085[J]. The Astrophysical Journal,2019,885(2). |
| APA | Maxted,Nigel I..,Filipovi?,M. D..,Hurley-Walker,N..,Boji?i?,I..,Rowell,G. P..,...&Hancock,P. J..(2019).A Supernova Remnant Counterpart for HESS J1832?085.The Astrophysical Journal,885(2). |
| MLA | Maxted,Nigel I.,et al."A Supernova Remnant Counterpart for HESS J1832?085".The Astrophysical Journal 885.2(2019). |
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