Optical photometry of the Type II-P supernova 2004dj in NGC 2403

	Optical photometry of the Type II-P supernova 2004dj in NGC 2403
	Zhang, TM; Wang, XF; Li, WD ; Zhou, X; Ma, J; Jiang, ZJ ; Chen, JS
刊名	ASTRONOMICAL JOURNAL
	2006-04-01
卷号	131 期号:4 页码:2245-2255
关键词	supernovae : general supernovae : individual (SN 2004dj) techniques : photometric
英文摘要	We present photometric data of the Type II-P supernova (SN) 2004dj in NGC 2403. The multicolor light curves cover the SN from similar to 60 to 200 days after explosion and are measured with a set of intermediate-band filters that have the advantage of tracing the strength variations of some spectral features. The light curves show a flat evolution in the middle of the plateau phase, then decline exponentially at the late times, with a rate of 0.10 +/- 0.03 mag (10 days)(-1) in most of the filters. In the nebular phase, the spectral energy distribution of SN 2004dj shows a steady increase in the flux near 6600 and 8500 8, which may correspond to the emission lines of H alpha and the Ca II near-IR triplet, respectively. The photometric behavior suggests that SN 2004dj is a normal SN II-P. Compared with the light curves of another typical SN II-P, 1999em, we estimate the explosion date to be 2004 June 10 +/- 21 UT (JD 2,453,167 +/- 21) for SN 2004dj. We also estimate the ejected nickel mass during the explosion to be M(Ni-56) 0.023 +/- 0.005 M-circle dot from two different methods, which is typical for a SN II-P. We derive the explosion energy to be E approximate to 0.75(-0.38)(+0.56) 1051 ergs, the ejecta mass to be M approximate to 10.0(-5.2)(+7.4) M-circle dot, and the initial radius to be R approximate to 282(-122)(+253) R-circle dot for the presupernova star of SN 2004dj, which are consistent with other typical SNe II-P.
收录类别	SCI
语种	英语
WOS记录号	WOS:000236361200029
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7123]
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.Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China 3.Tsing Hua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China 4.Univ Calif Berkeley, Dept Astron, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Zhang, TM,Wang, XF,Li, WD,et al. Optical photometry of the Type II-P supernova 2004dj in NGC 2403[J]. ASTRONOMICAL JOURNAL,2006,131(4):2245-2255.
APA	Zhang, TM.,Wang, XF.,Li, WD.,Zhou, X.,Ma, J.,...&Chen, JS.(2006).Optical photometry of the Type II-P supernova 2004dj in NGC 2403.ASTRONOMICAL JOURNAL,131(4),2245-2255.
MLA	Zhang, TM,et al."Optical photometry of the Type II-P supernova 2004dj in NGC 2403".ASTRONOMICAL JOURNAL 131.4(2006):2245-2255.