EDP Sciences
Free Access
Volume 440, Number 2, September III 2005
Page(s) 767 - 773
Section On-line catalogs and data
DOI https://doi.org/10.1051/0004-6361:20041863
Published online 01 September 2005

A&A 440, 767-773 (2005)
DOI: 10.1051/0004-6361:20041863

A high sensitivity HI survey of the sky at $\mathsf{\delta \le -25 \degr}$

Final data release
E. Bajaja1, E. M. Arnal1, 2, J. J. Larrarte1, R. Morras1, 2, W. G. L. Pöppel1 and P. M. W. Kalberla3

1  Instituto Argentino de Radioastronomía, c.c. 5, (1894) Villa Elisa, Argentina
    e-mail: [bajaja;arnal]@iar.unlp.edu.ar; rimorras@isis.unlp.edu.ar; wpoeppel@iar.unlp.edu.ar
2  Facultad de Ciencias Astronómicas y Geofísicas, UNLP, Av. Paseo del Bosque, s/n, 1900 La Plata, Argentina
3  Radioastronomisches Institut der Universität Bonn, Auf dem Hügel 71, 53121 Bonn, Germany
    e-mail: pkalberla@astro.uni-bonn.de

(Received 19 August 2004 / Accepted 3 March 2005)

We present the final data release of the high sensitivity $\lambda$ 21-cm neutral hydrogen survey of the sky south of $\delta
\le -25 \degr$. A total of 50 980 positions lying on a galactic coordinate grid with points spaced by ( $\Delta l, \Delta b$) = (0$\fdg$5/cos b, 0$\fdg$5) were observed with the 30-m dish of the Instituto Argentino de Radioastronomía (IAR). The angular resolution of the survey is HPBW = 0$\fdg$5 and the velocity coverage spans the interval -450  ${\rm km\,s^{-1}}$ to +400  ${\rm km\,s^{-1}}$ (LSR). The velocity resolution is 1.27  ${\rm km\,s^{-1}}$ 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.

Key words: surveys -- Galaxy: structure -- radio lines: ISM

Tables at the CDS

© ESO 2005

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.