The optical/near-infrared light curves of SN 2002ap for the first 1.5 years after discovery

	The optical/near-infrared light curves of SN 2002ap for the first 1.5 years after discovery
	Tomita, H ; Deng, JS; Maeda, K ; Yoshii, Y ; Nomoto, K ; Mazzali, PA ; Suzuki, T ; Kobayashi, Y ; Minezaki, T ; Aoki, T
刊名	ASTROPHYSICAL JOURNAL
	2006-06-10
卷号	644 期号:1 页码:400-408
关键词	supernovae : general supernovae : individual (SN 2002ap)
英文摘要	Late-time BVRIJHK photometry of the peculiar Type Ic SN 2002ap, taken between 2002 June 12 and 2003 August 29 with the MAGNUM Telescope, is presented. The light-curve decline rate is derived in each band, and the color evolution is studied through comparison with nebular spectra and with SN 1998bw. Using the photometry, the OIR bolometric light curve is built, extending from before light maximum to day 580 after explosion. The light curve has a late-time shape strikingly similar to that of the hypernova SN 1998bw. The decline rate changes from 0.018 mag day(-1) between days 130 and 230 to 0.014 mag day(-1) between days 270 and 580. To reproduce the late-time light curve, a dense core must be added to the one-dimensional hypernova model that best fits the early-time observations, bringing the ejecta mass from 2.5 to 3 M-. without much change in the kinetic energy, which is 4; 1051 ergs. This is similar to the case of other hypernovae and suggests asymmetry. A large H-band bump developed in the spectral energy distribution after similar to day 300, probably caused by strong [ Si I] 1.646 and 1.608 mu m emissions. The near-infrared flux contribution increased simultaneously from < 30% to > 50% at day 580. The near-infrared light curves were compared with those of other Type Ib/c supernovae, among which SN 1983I seems similar to SN 2002ap both in the near-infrared and in the optical.
收录类别	SCI
语种	英语
WOS记录号	WOS:000238339200034
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7164]
专题	国家天文台_空间科学研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Tokyo, Sch Sci, Inst Astron, Tokyo 1810015, Japan 3.Univ Tokyo, Sch Sci, Dept Astron, Bunkyo Ku, Tokyo 1130033, Japan 4.Univ Tokyo, Grad Sch Arts & Sci, Dept Earth Sci & Astron, Meguro Ku, Tokyo 1538902, Japan 5.Univ Tokyo, Sch Sci, Res Ctr Early Universe, Bunkyo Ku, Tokyo 1130033, Japan 6.Osserv Astron Trieste, I-34131 Trieste, Italy 7.Max Planck Inst Astrophys, D-85748 Garching, Germany 8.Natl Astron Observ, Tokyo 1818588, Japan 9.Japan Aerosp Explorat Agcy, Inst Space & Astron Sci, Kanagawa 2298510, Japan
推荐引用方式 GB/T 7714	Tomita, H,Deng, JS,Maeda, K,et al. The optical/near-infrared light curves of SN 2002ap for the first 1.5 years after discovery[J]. ASTROPHYSICAL JOURNAL,2006,644(1):400-408.
APA	Tomita, H.,Deng, JS.,Maeda, K.,Yoshii, Y.,Nomoto, K.,...&Suganuma, M.(2006).The optical/near-infrared light curves of SN 2002ap for the first 1.5 years after discovery.ASTROPHYSICAL JOURNAL,644(1),400-408.
MLA	Tomita, H,et al."The optical/near-infrared light curves of SN 2002ap for the first 1.5 years after discovery".ASTROPHYSICAL JOURNAL 644.1(2006):400-408.