EARLIEST PHOTOMETRY OF SN-1987A

被引：0
|
作者：
WEST, RM [1 ]
MCNAUGHT, RH [1 ]
机构：
[1] ANGLO AUSTRALIAN OBSERV, COONABARABRAN, NSW, AUSTRALIA
来源：
ASTRONOMY & ASTROPHYSICS | 1992年 / 256卷 / 02期
关键词：
SN-1987A; SUPERNOVA; PHOTOMETRY; PHOTOGRAPHY;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Seven wide-field photographic exposures, obtained of the LMC field on 1987 Feb. 22 - 24 in Australia, and including the earliest recorded images of SN 1987A, have been scanned and photometrically calibrated by means of bright field stars. Accurate V-magnitudes of SN 1987A are derived by means of fixed-diaphragm, colour adjusted, integrated fluxes; on Feb. 23 it is found to be 0.2 - 0.8 mag brighter than indicated by earlier estimates, based on image diameters alone. The measurements now agree rather better with the theoretical light curves, e.g. those by Woosley (1988).
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页码：447 / 451
页数：5
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