COMPACT RADIO-SOURCES NEAR THE GALACTIC PLANE

被引:46
作者
HELFAND, DJ
ZOONEMATKERMANI, S
BECKER, RH
WHITE, RL
机构
[1] UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616
[2] SUNY STONY BROOK,DEPT EARTH & SPACE SCI,ASTRON PROGRAM,STONY BROOK,NY 11794
[3] UNIV CALIF LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550
[4] SPACE TELESCOPE SCI INST,BALTIMORE,MD 21218
关键词
H-II REGIONS; PLANETARY NEBULAE; GENERAL; RADIO CONTINUUM; GALAXIES; SURVEYS;
D O I
10.1086/191664
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The results of our extension of the 20 cm Galactic plane survey reported by Zoonematkermani and coworkers to Galactic latitudes of +/- 1-degrees.8 over the central region of the Milky Way )(-1O-degrees less-than-or-equal-to 1 less-than-or-equal-to 40-degrees) are reported. We catalog 1457 new discrete radio sources down to flux densities of less than or similar to 5 mJy and are 95% complete at 20 mJy. A detailed comparison of all radio sources from our complete survey in this longitude range with the IRAS Point Source Catalog provides classification for 13% of the objects, including 159 compact H ii regions, and nearly 100 planetary nebulae over 70 of which are newly identified. We comment briefly on the identity of the remaining radio sources and on the importance of our 6 cm survey, currently underway, in defining the radio source population of the Galaxy.
引用
收藏
页码:211 / 255
页数:45
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