Classification and Properties of Milky Way Sources from the GALEX UV Surveys

Details Classification and Properties of Milky Way Sources from the GALEX UV Surveys Classification and Properties of Milky Way Sources from the GALEX UV Surveys

Jul 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007uasb.conf...95b&link_type=abstract

UV Astronomy: Stars from Birth to Death. Proceedings of the Joint Discussion n.4 during the IAU general Assembly of 2006. Ana I.

Astronomy and Astrophysics

Astronomy

1

Uv Imaging, Uv Surveys, Hot Stars, Milky Way Structure, Optical Surveys

Scientific paper

We used Galaxy Evolution Explorer (GALEX) imaging survey data matched to the Sloan Digital Sky Survey (SDSS) in overlapping areas to explore the nature of the UV sources. We classify the sources by comparing their seven band photometry (GALEX far-UV, near-UV, SDSS u, g, r, i, z ) to model colors computed for different astrophysical objects, taking into account the effects of extinction. The initial sample covers mostly high galactic latitudes, and includes about 2 million sources. Based on our stellar models, we estimate that the GALEX surveys can detect hot White Dwarfs throughout the Milky Way halo (down to an estimated radius of 0.04Ro at the depth of the Medium Imaging Survey), providing an unprecedented improvement on the census of such objects in the Galaxy. Their observed surface density is consistently represented by the Milky Way models. Optical spectra available for a large subsample confirm the classification for the candidates selected from the GALEX photometry with about 97% purity for single hot stars and between 45-31% for binaries containing a hot WD and a cooler companion.

Affiliated with

Also associated with

No associations

Rating

Classification and Properties of Milky Way Sources from the GALEX UV Surveys 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 Classification and Properties of Milky Way Sources from the GALEX UV Surveys, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classification and Properties of Milky Way Sources from the GALEX UV Surveys will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1778047