VELOCITY STRUCTURE OF THE ORION-IRC2 SIO MASER - EVIDENCE FOR AN 80 AU DIAMETER CIRCUMSTELLAR DISK

被引：65

作者：

PLAMBECK, RL

WRIGHT, MCH

CARLSTROM, JE

机构：

[1] Radio Astronomy Laboratory, University of California, Berkeley, CA

[2] Radio Astronomy Laboratory, University of California, Berkeley

来源：

ASTROPHYSICAL JOURNAL | 1990年 / 348卷 / 02期

关键词：

Masers; Nebulae: Orion Nebula; Stars: formation;

D O I：

10.1086/185632

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We measured the relative positions of the 86 GHz SiO maser features toward Orion-IRc2 with an accuracy of ±0″.015 using the Hat Creek millimeter array. Maser emission appears to originate from an 0″.15 diameter ring. A simple model of maser emission from an expanding, rotating disk is able to reproduce the observed velocity structure of the ring.

引用

页码：L65 / L68

页数：4

共 16 条

[1]

ALCOCK C, 1985, ASTROPHYS J, V299, P763, DOI 10.1086/163742

[2] SATURATION AND BEAMING IN ASTROPHYSICAL MASERS [J].