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Title:
A new survey for high velocity HI detections in the Southern Hemisphere
Authors:
Morras, R.; Bajaja, E.; Arnal, E. M.; Pöppel, W. G. L.
Affiliation:
AA(Instituto Argentino de Radioastronomía, c.c. 5, (1894) Villa Elisa, Argentina ; ; ; ), AB(Instituto Argentino de Radioastronomía, c.c. 5, (1894) Villa Elisa, Argentina ; ; ; ), AC(Instituto Argentino de Radioastronomía, c.c. 5, (1894) Villa Elisa, Argentina ; ; ; ), AD(Instituto Argentino de Radioastronomía, c.c. 5, (1894) Villa Elisa, Argentina ; ; ; )
Publication:
Astronomy and Astrophysics Supplement, v.142, p.25-30 (A&AS Homepage)
Publication Date:
02/2000
Origin:
A&AS
A&A Keywords:
SURVEYS, ISM: CLOUDS, ISM: KINEMATICS AND DYNAMICS, GALAXY: HALO, GALAXY: KINEMATICS AND DYNAMICS
DOI:
10.1051/aas:2000132
Bibliographic Code:
2000A&AS..142...25M

Abstract

A new high-sensitivity HI survey of the southern sky was made south of Declination -25°, at the Instituto Argentino de Radioastronomía (IAR), on a half-degree grid in galactic coordinates. A total of 50980 positions were observed. One of the goals of this survey was to search for high velocity clouds (HVCs). The HI profiles have been smoothed to a velocity resolution of 8 km s-1. The resulting rms noise falls in the range 0.015 to 0.020 K. We have detected 6848 high velocity (HV) components.

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Database: Astronomy
Physics
arXiv e-prints