| Issue |
Astron. Astrophys. Suppl. Ser.
Volume 142, Number 1, February II 2000
|
|
|---|---|---|
| Page(s) | 35 - 40 | |
| DOI | https://doi.org/10.1051/aas:2000134 | |
| Published online | 15 February 2000 | |
A high sensitivity Hi survey of the sky at δ ≤ -25°
Instituto Argentino de Radioastronomía, c.c. 5, (1894) Villa Elisa, Argentina e-mail: arnal@iar.unlp.edu.ar; bajaja@orbis.conae.gov.ar; rimorras@isis.unlp.edu.ar; wpoppel@iar.unlp.edu.ar
Send offprint request to: E.M. Arnal
Received:
19
July
1999
Accepted:
16
November
1999
This paper reports on a high sensitivity λ 21-cm neutral hydrogen survey of the
sky south of 
-25°. A total of 50980 positions lying on a galactic
coordinate grid with points spaced by (
l,
b) = (0
5/cos b, 05), were observed with the 30 m
dish of the Instituto Argentino de Radioastronomía (IAR). The angular resolution of
the survey is HPBW = 30', and the velocity coverage spans the
interval -450 
to +400 (LSR). The velocity resolution is 1.27
and the final rms noise of the entire database is ~ 0.07 K. The brightness
temperature scale is accurate to 5%.
Key words: surveys / ISM: general / Galaxy: general radio lines: ISM / ISM: clouds
© European Southern Observatory (ESO), 2000