Scientific background to the UKST H-alpha survey

Details Scientific background to the UKST H-alpha survey Scientific background to the UKST H-alpha survey

Apr 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998pasa...15....5m&link_type=abstract

Publications Astronomical Society of Australia, vol. 15, no. 1, p. 5-8

Astronomy and Astrophysics

Astronomy

3

Star Surveys, Interstellar Matter, Hii Regions

Scientific paper

The dominant process in the evolution of spiral galaxies like our own is clearly the formation of new stars, and the leading optical indicator of star formation of this is H-alpha emission. Considering the tremendous importance of star formation and its variation within and between galaxies, it is surprising just how little survey work has been carried out at H-alpha. After the successful development of Tech Pan films for deep photographic imaging with the UKST, and given the particular sensitivity of Tech Pan at wavelengths near H-alpha, it was natural to consider the possibilities for a narrow band H-alpha imaging survey of large angular extent. This idea quickly developed into a full blown survey of the whole of the Southern Milky Way, of the Magellanic Clouds, and of selected extragalactic regions of interest such as that around the Virgo Cluster. The current workshop is devoted to the discussion of the details of making and using this survey.

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