ON THE ORIGIN OF DIVIDING LINES FOR LATE-TYPE GIANTS AND SUPERGIANTS

被引：49

作者：

ROSNER, R

MUSIELAK, ZE

CATTANEO, F

MOORE, RL

SUESS, ST

机构：

[1] UNIV ALABAMA,CTR SPACE PLASMA & AERON RES,HUNTSVILLE,AL 35899

[2] NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812

来源：

ASTROPHYSICAL JOURNAL | 1995年 / 442卷 / 01期

关键词：

STARS; CORONAE; MASS LOSS; MAGNETIC FIELDS; SUPERGIANTS;

D O I：

10.1086/187807

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We show how a change in the nature of the stellar dynamo can lead to a transition in the topological character of stellar magnetic fields of evolved stars, from being mainly closed on the blueward side of the giant tracks in the H-R diagram to being mainly open on their redward side. If such a topological transition occurs, then these stars naturally segregate into two classes: those having hot coronae on the blueward side, and those having massive cool winds on the redward side, thus leading naturally to the so-called dividing lines.

引用

页码：L25 / L28

页数：4