Late-time photometry of two nearby type II-P supernovae: 2004dj and 2004et
文献类型：期刊论文
| 作者 | Zhang, Tian-Meng1,2,5 ; Wang, Xiao-Feng3,4,6; Zhou, Xu1; Ma, Jun1; Jiang, Zhao-Ji1; Wu, Jiang-Hua1; Wu, Zhen-Yu1; Basa, Stephane2
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2009-07-01 |
| 卷号 | 9期号:7页码:783-790 |
| 关键词 | supernovae: general supernovae: individual (SN 2004dj, SN 2004et) techniques: photometric |
| 英文摘要 | We present late-time photometry for two bright type II-P supernovae (SNe) 2004dj and 2004et, extending over 400 d after the explosion, which are measured with a set of intermediate-band filters that have the advantage of tracing the strength variations of some spectral features. Although these two SNe II-P exhibit similar photometric evolution at earlier times, they diverge during the nebular phase. SN 2004dj shows a slow late-time decline rate with similar to 0.7 +/- 0.1 mag (100d)(-1) during the period ranging from t approximate to 200 - 300d after the explosion, while SN 2004et shows a much faster decline rate at a comparable phase, e.g., 1.3 +/- 0.1 mag (100 d)(-1). The steeper decay rate seen in SN 2004et is likely due to dust formation in the explosion ejecta. Based on intermediate-band photometry, we derived the evolution of the feature lines [e.g., H alpha] of SNe 2004dj and 2004et which are similar in flux at comparable phases but perhaps with significantly different decay rates. The origin of the observed variations in the continuum and the feature lines is briefly discussed. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000268130300007 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/7617]  |
| 专题 | 国家天文台_光学天文研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Observ Astron Marseille Prov, F-13388 Marseille 13, France 3.Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China 4.Tsinghua Univ, THCA, Beijing 100084, Peoples R China 5.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 6.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Tian-Meng,Wang, Xiao-Feng,Zhou, Xu,et al. Late-time photometry of two nearby type II-P supernovae: 2004dj and 2004et[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2009,9(7):783-790. |
| APA | Zhang, Tian-Meng.,Wang, Xiao-Feng.,Zhou, Xu.,Ma, Jun.,Jiang, Zhao-Ji.,...&Basa, Stephane.(2009).Late-time photometry of two nearby type II-P supernovae: 2004dj and 2004et.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,9(7),783-790. |
| MLA | Zhang, Tian-Meng,et al."Late-time photometry of two nearby type II-P supernovae: 2004dj and 2004et".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 9.7(2009):783-790. |
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来源：国家天文台
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