A high sensitivity Hi survey of the sky at delta <= -25o

Details A high sensitivity Hi survey of the sky at delta <= -25o A high sensitivity Hi survey of the sky at delta <= -25o

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000a%26as..142...35a&link_type=abstract

Astronomy and Astrophysics Supplement, v.142, p.35-40

Astronomy and Astrophysics

Astrophysics

53

Surveys, Ism: General, Galaxy: General Radio Lines: Ism, Ism: Clouds

Scientific paper

This paper reports on a high sensitivity lambda 21-cm neutral hydrogen survey of the sky south of delta <= -25o. A total of 50980 positions lying on a galactic coordinate grid with points spaced by (bigtriangleup l, bigtriangleup b) = (0\fdg5/cos b, 0\fdg5), were observed with the 30 m dish of the Instituto Argentino de Radioastronomía (IAR). The angular resolution of the survey is HPBW = 30\arcmin, and the velocity coverage spans the interval -450 km s-1 to +400 km s-1 (LSR). The velocity resolution is 1.27 km s-1 and the final rms noise of the entire database is ~ 0.07 K. The brightness temperature scale is accurate to 5%.

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