FAUST observations near the North Galactic Pole

Details FAUST observations near the North Galactic Pole FAUST observations near the North Galactic Pole

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mnras.316...58b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 316, Issue 1, pp. 58-70.

Astronomy and Astrophysics

Astronomy

2

Ultraviolet: Galaxies, Ultraviolet: Stars

Scientific paper

We analyse a UV observation with FAUST in the direction of the North Galactic Pole. The region includes a cirrus cloud (G251.2+73.3) and a dark globule, and the FAUST image contains 75 UV sources. We discuss the UV source detection and their identification with optical counterparts. We use, for the first time, low-resolution spectral information as the primary means of identifying possible optical counterparts. This is complemented, and sometimes modified, by optical information available from existing data bases. The results are interpreted with the help of maps of the distribution of far-infrared emission and of the neutral hydrogen gas. We discuss the types of objects found, the degree of matching with the predictions of our UV Galaxy model, and the general behaviour of the Galactic UV extinction in this Milky Way part. We compare the UV results for this region with similar observations in the same neighbourhood, which are less affected by dust, and attempt to explain the peculiar distribution of UV magnitudes as a result of a peculiar distribution of foreground dust, which does not follow the accepted dust-to-gas relation.

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