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

Autor:	W. G. L. Pöppel, Esteban Bajaja, P. M. W. Kalberla, R. Morras, Edmundo Marcelo Arnal, J. J. Larrarte
Rok vydání:	2005
Předmět:	Delta Physics Brightness media_common.quotation_subject Resolution (electron density) Astronomy and Astrophysics Astrophysics Lambda Space and Planetary Science Sky Angular resolution Sensitivity (electronics) Data release media_common
Zdroj:	Astronomy & Astrophysics. 440:767-773
ISSN:	1432-0746 0004-6361
DOI:	10.1051/0004-6361:20041863
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3cb3ac4f3f224eb6c5cf7ebc17761126 https://doi.org/10.1051/0004-6361:20041863 Zobrazit plný text záznamu