The long-lived Type IIn SN 2015da: Infrared echoes and strong interaction within an extended massive shell star star star
文献类型：期刊论文
| 作者 | Tartaglia, L.1; Pastorello, A.2; Sollerman, J.1; Fransson, C.1; Mattila, S.3; Fraser, M.4; Taddia, F.1; Tomasella, L.2; Turatto, M.2; Morales-Garoffolo, A.5 |
| 刊名 | Astronomy & Astrophysics
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 635页码:A39 |
| ISSN号 | 0004-6361 |
| 关键词 | supernovae: general galaxies: individual: NGC 5337 supernovae: individual: PSN J13522411+3941286 supernovae: individual: iPTF16tu supernovae: individual: SN 2015da rich circumstellar medium ia supernova luminous supernova eta-carinae stellar evolution emission-lines shock breakout light-curve h-i dust Astronomy & Astrophysics |
| DOI | 10.1051/0004-6361/201936553 |
| 产权排序 | 9 |
| 文献子类 | Article |
| 英文摘要 | In this paper we report the results of the first similar to four years of spectroscopic and photometric monitoring of the Type IIn supernova SN 2015da (also known as PSN J13522411+3941286, or iPTF16tu). The supernova exploded in the nearby spiral galaxy NGC 5337 in a relatively highly extinguished environment. The transient showed prominent narrow Balmer lines in emission at all times and a slow rise to maximum in all bands. In addition, early observations performed by amateur astronomers give a very well-constrained explosion epoch. The observables are consistent with continuous interaction between the supernova ejecta and a dense and extended H-rich circumstellar medium. The presence of such an extended and dense medium is difficult to reconcile with standard stellar evolution models, since the metallicity at the position of SN 2015da seems to be slightly subsolar. Interaction is likely the mechanism powering the light curve, as confirmed by the analysis of the pseudo bolometric light curve, which gives a total radiated energy greater than or similar to 10(51) erg. Modeling the light curve in the context of a supernova shock breakout through a dense circumstellar medium allowed us to infer the mass of the prexisting gas to be similar or equal to 8 M-circle dot, with an extreme mass-loss rate for the progenitor star similar or equal to 0.6 M-circle dot yr(-1), suggesting that most of the circumstellar gas was produced during multiple eruptive events. Near- and mid-infrared observations reveal a fluxexcess in these domains, similar to those observed in SN 2010jl and other interacting transients, likely due to preexisting radiatively heated dust surrounding the supernova. By modeling the infrared excess, we infer a mass greater than or similar to 0.4 x 10(-3) M-circle dot for the dust. |
| URL标识 | 查看原文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000519108600001 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/4052]  |
| 专题 | 研究单元未命名 |
| 作者单位 | 1.Department of Astronomy and the Oskar Klein Centre, Stockholm University, AlbaNova, Roslagstullsbacken 21, 114 21 Stockholm, Sweden; 2.INAF – Osservatorio Astronomico di Padova, Vicolo dell’Osservatorio 5, 35122 Padova, Italy; 3.Tuorla Observatory, Department of Physics and Astronomy, 20014, University of Turku, Turku, Finland; 4.School of Physics, O’Brien Centre for Science North, University College Dublin, Belfield Dublin 4, Ireland; 5.Department of Applied Physics, Universidad de Cádiz, campus of Puerto Real, 11510 Cádiz, Spain; 6.Institute of Space Sciences (ICE, CSIC), Campus UAB, Camí de Can Magrans s/n, 08193, Cerdanyola del Vallès, Barcelona, Spain; 7.Institut d’Estudis Espacials de Catalunya (IEEC), c/Gran Capità 2– 4, Edif. Nexus 201, 08034 Barcelona, Spain; 8.Benoziyo Center for Astrophysics and the Helen Kimmel center for planetary science, Weizmann Institute of Science, 76100 Rehovot, Israel; 9.Xinjiang Astronomical Observatory, 150 Science 1–Street, Urumqi, Xinjiang 830011, PR China; 10.Xingming Observatory, Mountain Nanshan, Urumqi, Xinjiang 830011, PR China; |
| 推荐引用方式 GB/T 7714 | Tartaglia, L.,Pastorello, A.,Sollerman, J.,et al. The long-lived Type IIn SN 2015da: Infrared echoes and strong interaction within an extended massive shell star star star[J]. Astronomy & Astrophysics,2020,635:A39. |
| APA | Tartaglia, L..,Pastorello, A..,Sollerman, J..,Fransson, C..,Mattila, S..,...&Terreran, G..(2020).The long-lived Type IIn SN 2015da: Infrared echoes and strong interaction within an extended massive shell star star star.Astronomy & Astrophysics,635,A39. |
| MLA | Tartaglia, L.,et al."The long-lived Type IIn SN 2015da: Infrared echoes and strong interaction within an extended massive shell star star star".Astronomy & Astrophysics 635(2020):A39. |
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