Optical photometry of SN 1993J: 1995 to 2003
文献类型：期刊论文
| 作者 | Zhang, TM ; Wang, XF; Zhou, X; Li, WD; Ma, J; Jiang, ZJ; Li, ZW
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| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2004-10-01 |
| 卷号 | 128期号:4页码:1857-1867 |
| 关键词 | supernova : individual (SN 1993J) techniques : photometric |
| 英文摘要 | We present the late-time optical photometry of supernova (SN) 1993J in M81 from 1995 February to 2003 January. The observations were performed in a set of intermediate-band filters that have the advantage of tracing the strength variations of some spectral features. SN 1993J was found to fade very slowly at late times, declining only by 0.05 +/- 0.02 mag (100 days)(-1) in most of the filters from 2 to nearly 10 yr after discovery. Our data suggest that the circumstellar interaction provides most of the energy that powers the late-time optical emission of SN 1993J. This is manifested by several flux peaks seen in the rough spectral energy distributions constructed from the multicolor light curves. The flux peaks near 6600, 5800, and 4900 8 may correspond to the emission lines of Halpha, Na I D + He I lambda5876, and [O III] lambdalambda4959, 5007, respectively. The evolution of these emission lines suggest a power-law SN density model, as proposed by Chevalier Fransson. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000224303400034 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/6929]  |
| 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 China, Beijing 100012, Peoples R China 2.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA 3.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, TM,Wang, XF,Zhou, X,et al. Optical photometry of SN 1993J: 1995 to 2003[J]. ASTRONOMICAL JOURNAL,2004,128(4):1857-1867. |
| APA | Zhang, TM.,Wang, XF.,Zhou, X.,Li, WD.,Ma, J.,...&Li, ZW.(2004).Optical photometry of SN 1993J: 1995 to 2003.ASTRONOMICAL JOURNAL,128(4),1857-1867. |
| MLA | Zhang, TM,et al."Optical photometry of SN 1993J: 1995 to 2003".ASTRONOMICAL JOURNAL 128.4(2004):1857-1867. |
入库方式： OAI收割
来源：国家天文台
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