A high sensitivity HI survey of the sky at delta < -25 deg Final data release

Details A high sensitivity HI survey of the sky at delta < -25 deg Final data release A high sensitivity HI survey of the sky at delta < -25 deg Final data release

2005-04-06

arxiv.org/abs/astro-ph/0504136v1

Astronomy and Astrophysics

Astrophysics

10 pages, 10 figures, accepted for publication by Astronomy & Astrophysics

Scientific paper

10.1051/0004-6361:20041863

We present the final data release of the high sensitivity lambda 21-cm neutral hydrogen survey of the sky south of delta < -25 degr. A total of 50980 positions lying on a galactic coordinate grid with points spaced by (Delta l, Delta b) = ((0.5 deg)/cos b, 0.5 deg) were observed with the 30-m dish of the Instituto Argentino de Radioastronomia (IAR). The angular resolution of the survey is HPBW = 0.5 deg and the velocity coverage spans the interval -450 km/s to +400 km/s (LSR). The velocity resolution is 1.27 km/s and the final rms noise of the entire database is 0.07 K. The data are corrected for stray radiation and converted to brightness temperatures.

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