VARIABILITY OF THE NUCLEAR RADIO-SOURCE IN M31

被引：18

作者：

CRANE, PC

COWAN, JJ

DICKEL, JR

ROBERTS, DA

机构：

[1] UNIV OKLAHOMA,DEPT PHYS & ASTRON,NORMAN,OK 73019

[2] UNIV ILLINOIS,DEPT ASTRON,URBANA,IL 61801

来源：

ASTROPHYSICAL JOURNAL | 1993年 / 417卷 / 02期

关键词：

GALAXIES; INDIVIDUAL; (M31); NUCLEI;

D O I：

10.1086/187094

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The unresolved nuclear radio source in the galaxy M31 has been detected at a second epoch, with a luminosity one-quarter that of Sgr A*. Between the two epochs of observation (1990 June 8 and 9 and 1992 November 4 and 5), the flux density at lambda3.6 cm increased from 28 +/- 5 to 39 +/- 5 muJy. The value of chi2 is consistent, at the 70% level, with variability about the mean flux density. The observed variability is similar to that of Sgr A* and strengthens the identification of the source in M31 as an analog of Sgr A*.

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收藏

页码：L61 / L62

页数：2

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