Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...261..685p&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 261, no. 2, p. 685-693.
Astronomy and Astrophysics
Astronomy
12
Astronomical Catalogs, Early Stars, Infrared Astronomy Satellite, Far Infrared Radiation, Sky Surveys (Astronomy), Spaceborne Astronomy, Star Distribution, Star Formation
Scientific paper
The IRAS Point Source Catalog (IPSC), providing an IR survey of 96 percent of the sky, is searched for low mass young stellar objects (YSOs). Three different statistical approaches are pursued to classify an initial set of 69436 sources out of the total of 245,889 IPSC objects. The performance of the classifiers is assessed by means of false alarm and hit rates. The similarity, in IR properties, to a combined sample of YSOs taken from Beichman et al. (1986) and Myers et al. (1987) is exploited by two simple classifiers to produce rank-ordered lists of YSO candidates. A third, two-stage classifier utilizes the IR properties of galactic and extragalactic objects in conjunction with the clustering properties of YSOs on the sky. This combination considerably improves the discrimination between YSOs and other galactic sources and selects a sample of 5825 YSO candidates lying outside of confused regions (viz., the galactic plane and the Magellanic clouds). According to our performance analysis, 5068 of these YSO candidates are indeed YSOs (implying a contamination of 13 percent or 757 misclassified sources), while the selection reaches a completeness of 85 percent. From these figures-of merit we can estimate that the initial sample contains in total 5962 YSOs.
Adorf Hans-Martin
Meurs Evert J. A.
Prusti Timo
No associations
LandOfFree
Young stellar objects in the IRAS Point Source Catalog does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Young stellar objects in the IRAS Point Source Catalog, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Young stellar objects in the IRAS Point Source Catalog will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1164263