Photometric study of type Ia supernova SN 2002hu

被引：5
|
作者：
Sahu, DK [1 ]
Anupama, GC
Prabhu, TP
机构：
[1] Ctr Res & Educ Sci & Technol, Hosakote 562114, India
[2] Indian Inst Astrophys, Bangalore 560034, Karnataka, India
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2006年 / 366卷 / 02期
关键词：
supernovae : general; supernovae : individual : SN 2002hu; galaxies : individual : MCG+6-6-12;
D O I：
10.1111/j.1365-2966.2005.09893.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Optical UBVRI photometry of the type Ia supernova ( SN Ia) SN 2002hu covering the period from - 2 to + 73 d since B maximum is presented. The supernova reached at maximum brightness in B on JD 245 2591.78 +/- 0.5 with an apparent magnitude of 16.83 +/- 0.02 mag and a relatively blue colour ( B - V) = - 0.08 +/- 0.04 mag. The luminosity decline rate of Delta m(15)( B) = 1.00 +/- 0.05 indicates an absolute B magnitude at maximum of M-B(max) = - 19.38 +/- 0.3. The estimated absolute B magnitude, together with the photometric evolution, indicate SN 2002hu was slightly overluminous compared to the average SNe Ia. The distance modulus to the parent galaxy is estimated to be mu = 36.04 +/- 0.20.
引用
收藏
页码：682 / 688
页数：7
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