TRANSITION TO A BE PHASE IN HD-17520

被引：6

作者：

WALTER, FM

机构：

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 1992年 / 104卷 / 677期

关键词：

D O I：

10.1086/133024

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

HD 17520, an O9 V star, has undergone a transition to a Be-type star over the past decade. I report observations taken between 1985 October and 1991 December which show the strengthening of the H-alpha-emission. I discuss the line-profile variations, and offer no new insights into the Be phenomenon. For spectroscopic observers, this is a warning, since HD 17520 has been used as a spectrophotometric standard star.

引用

页码：508 / 510

页数：3

共 18 条

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[2]

[Anonymous], AP J S

[3] TRANSIENT EMISSION EVENTS IN THE EARLY BE-STAR 59-CYGNI [J].