A MAGNETIC-FIELD UPPER LIMIT FOR THE CIRCUMNUCLEAR RING IN THE GALACTIC-CENTER

被引：14

作者：

MARSHALL, J ^{[1
]}

LASENBY, AN ^{[1
]}

YUSEFZADEH, F ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT PHYS & ASTRON,EVANSTON,IL 60208

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1995年 / 274卷 / 02期

关键词：

ISM; CLOUDS; MAGNETIC FIELDS; GALAXY; CENTER; RADIO LINES;

D O I：

10.1093/mnras/274.2.519

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Zeeman effect has been used to derive an upper limit of 0.5 mG for the average magnetic field over regions of the circumnuclear disc in the Galactic Centre. The result is based on HI absorption observations made with the VLA in DnC. This low upper limit does not contradict the previous detections of Schwarz and Lasenby and Killeen et al, if field reversals occur within the 45 x 45 arcsec(2) regions over which we averaged.

引用

页码：519 / 522

页数：4

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