A BIPOLAR OUTFLOW OF IONIZED-GAS IN K3-50A - H76-ALPHA RADIO RECOMBINATION LINE AND CONTINUUM OBSERVATIONS OF K3-50

被引：43

作者：

DEPREE, CG

GOSS, WM

PALMER, P

RUBIN, RH

机构：

[1] NATL RADIO ASTRON OBSERV,SOCORRO,NM 87801

[2] UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637

[3] NASA,AMES RES CTR,ASTROPHYS BRANCH,MOFFETT FIELD,CA 94035

来源：

ASTROPHYSICAL JOURNAL | 1994年 / 428卷 / 02期

关键词：

H-II REGIONS; ISM; INDIVIDUAL; (K3-50); JETS AND OUTFLOWS; KINEMATICS AND DYNAMICS; RADIO LINES;

D O I：

10.1086/174277

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The H II regions near K3-50 (G70.3 + 1.6) have been imaged at high angular resolution (approximately 1.3'') in the continuum and the recombination lines H76alpha and He76alpha using the Very Large Array (VLA). The helium line is detected in only the brightest component K3-50A while the hydrogen line is detected in three components (K3-50A, B and C1). K3-50A shows a pronounced velocity gradient of approximately 150 km s-1 pc-1 along its major axis (P.A. = 160-degrees); in addition a wide range of line widths are observed, from 20 km s-1 to 65 km s-1. Kinematics from the line data and the morphology of the continuum emission suggest that the ionized material associated with K3-50A is undergoing a high-velocity bipolar outflow.

引用

页码：670 / 679

页数：10

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