OPTICAL AND ULTRAVIOLET OBSERVATIONS OF THE VERY YOUNG TYPE IIP SN 2014cx IN NGC 337
文献类型：期刊论文
| 作者 | Huang, Fang1,2; Wang, Xiaofeng1,2; Zampieri, Luca3; Pumo, Maria Letizia4; Arcavi, Iair5,6; Brown, Peter J.7; Graham, Melissa L.8; Filippenko, Alexei V.8; Zheng, WeiKang8; Hosseinzadeh, Griffin5 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 832期号:2 |
| 关键词 | galaxies: individual (NGC 337) supernovae: general supernovae: individual (SN 2014cx) |
| 英文摘要 | Extensive photometric and spectroscopic observations are presented for SN 2014cx, a type IIP supernova (SN) exploding in the nearby galaxy NGC 337. The observations are performed in optical and ultraviolet bands, covering from -20 to +400 days from the peak light. The stringent detection limit from prediscovery images suggests that this supernova was actually detected within about 1 day after explosion. Evolution of the very early-time light curve of SN 2014cx is similar to that predicted from a shock breakout and post-shock cooling decline before reaching the optical peak. Our photometric observations show that SN 2014cx has a plateau duration of similar to 100 days, an absolute V-band magnitude of similar to -16.5 mag at t approximate to 50 days, and a nickel mass of 0.056 +/- 0.008 M-circle dot. The spectral evolution of SN 2014cx resembles that of normal SNe IIP like SN 1999em and SN 2004et, except that it has a slightly higher expansion velocity (similar to 4200 km/ s(-1) at approximate to 50 days). From the cooling curve of photospheric temperature, we derive that the progenitor has a pre-explosion radius of similar to 640 R-circle dot, consistent with those obtained from SNEC modeling (similar to 620 R-circle dot) and hydrodynamical modeling of the observables (similar to 570 R-circle dot). Moreover, the hydrodynamical simulations yield a total explosion energy of similar to 0.4 x 10(51) erg, and an ejected mass of similar to 8 M-circle dot. These results indicate that the immediate progenitor of SN 2014cx is likely a red supergiant star with a mass of similar to 10 M-circle dot. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | CORE-COLLAPSE SUPERNOVAE ; EXPANDING PHOTOSPHERE METHOD ; EARLY LIGHT CURVES ; DIGITAL SKY SURVEY ; SHOCK BREAKOUT ; P SUPERNOVAE ; DUST FORMATION ; PROGENITORS ; TELESCOPE ; PHOTOMETRY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000389049800010 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6837]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 2.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 3.INAF Osservatorio Astron Padova, Vicolo Osservatorio 5, I-35122 Padua, Italy 4.INAF Osservatorio Astron Palermo Giuseppe S Vaian, Piazza Parlamento 1, I-90134 Palermo, Italy 5.Global Telescope Network, Las Cumbres Observ, 6740 Cortona Dr,Suite 102, Goleta, CA 93117 USA 6.Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Kohn Hall, Santa Barbara, CA 93106 USA 7.Texas A&M Univ, George P & Cynthia Woods Mitchell Inst Fundamenta, Dept Phys & Astron, 4242 TAMU, College Stn, TX 77843 USA 8.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA 9.Univ Calif Santa Barbara, Dept Phys, Broida Hall,Mail Code 9530, Santa Barbara, CA 93106 USA 10.Univ Calif Davis, Dept Phys, Davis, CA 95616 USA |
| 推荐引用方式 GB/T 7714 | Huang, Fang,Wang, Xiaofeng,Zampieri, Luca,et al. OPTICAL AND ULTRAVIOLET OBSERVATIONS OF THE VERY YOUNG TYPE IIP SN 2014cx IN NGC 337[J]. ASTROPHYSICAL JOURNAL,2016,832(2). |
| APA | Huang, Fang.,Wang, Xiaofeng.,Zampieri, Luca.,Pumo, Maria Letizia.,Arcavi, Iair.,...&Zhang,Tianmeng.(2016).OPTICAL AND ULTRAVIOLET OBSERVATIONS OF THE VERY YOUNG TYPE IIP SN 2014cx IN NGC 337.ASTROPHYSICAL JOURNAL,832(2). |
| MLA | Huang, Fang,et al."OPTICAL AND ULTRAVIOLET OBSERVATIONS OF THE VERY YOUNG TYPE IIP SN 2014cx IN NGC 337".ASTROPHYSICAL JOURNAL 832.2(2016). |
入库方式： OAI收割
来源：国家天文台
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