THE NONVARIABILITY OF THE PROGENITOR OF SUPERNOVA 1993J IN M81

被引：34

作者：

COHEN, JG

DARLING, J

PORTER, A

机构：

[1] Palomar Observatory, California Institute of Technology, Mail Code 105-24, Pasadena

来源：

ASTRONOMICAL JOURNAL | 1995年 / 110卷 / 01期

关键词：

D O I：

10.1086/117520

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An archive of images taken in the early 1980s exists for a field which includes the progenitor of supernova 1993J in M81. Fifty-four CCD frames in V, and several in other colors from this set taken in 1984 are analyzed to demonstrate that the progenitor of supernova 1993J was not variable to within a limit of 0.2 mag. The frames analyzed cover a time span of 150 days. The colors of the M81 SN progenitor are consistent with those of a late G supergiant. © 1995 American Astronomical Society.

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页码：308 / 311

页数：4

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