Radio recombination line (H92 alpha) observations of Sgr E

被引:14
作者
Cram, LE
Claussen, MJ
Beasley, AJ
Gray, AD
Goss, WM
机构
[1] NATL RADIO ASTRON OBSERV, SOCORRO, NM 87801 USA
[2] DOMINION ASTROPHYS OBSERV, PENTICTON, BC V2A 6K3, CANADA
关键词
HII regions; ISM; individual; Sgr E; galaxy; centre; radio continuum; radio lines;
D O I
10.1093/mnras/280.4.1110
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Observations of radio recombination line (H92 alpha) and 8.3-GHz continuum emission from several probable thermal sources in the Galactic Centre HII complex Sgr E have been made using the Very Large Array. Line emission has been detected from seven of these sources, confirming their thermal nature and also locating them in a single kinematical entitymoving with v(LSR) approximate to -205 km s(-1). The continuum sources are well resolved by the 8-arcsec beam, and several have complex structure including shells, arcs and cores. One source (G 358.6 + 0.06) has no significant H92 alpha flux, despite its relatively bright continuum and flat spectrum. Further observations will be needed to determine whether or not this interesting source is actually thermal.
引用
收藏
页码:1110 / 1120
页数:11
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