INTERFEROMETER MEASUREMENTS OF H-1 ABSORPTION IN DIRECTION OF 16 EXTRAGALACTIC RADIO-SOURCES

被引：12

作者：

ROGER, RS ^{[1
]}

CASWELL, JL ^{[1
]}

MURRAY, JD ^{[1
]}

COLE, DJ ^{[1
]}

COOKE, DJ ^{[1
]}

机构：

[1] CSIRO, DIV RADIOPHYS, EPPING 2121, NEW S WALES, AUSTRALIA

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1978年 / 182卷 / 01期

关键词：

Absorption spectroscopy - Radio astronomy;

D O I：

10.1093/mnras/182.2.209

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The Parkes interferometer has been used to measure the galactic HI absorption spectrum for 16 extragalactic sources. Absorption was detected for 12 sources and values of Hi column density and spin temperature are derived in these directions. In addition, observations of 30Doradus were made at two interferometer baselines over a complete range of projected position angles; these measurements show that the absorption by foreground H I in the Large Magellanic Cloud has two main velocity components, and reveal previously unrecognized spatial structure in the H I. © Royal Astronomical Society.

引用

页码：209 / 218

页数：10

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