Classification algorithms applied to 10 588 low-resolution slitless spectra - A search for unusual and interesting objects

Details Classification algorithms applied to 10 588 low-resolution slitless spectra - A search for unusual and interesting objects Classification algorithms applied to 10 588 low-resolution slitless spectra - A search for unusual and interesting objects

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993aj....105.1587b&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 105, no. 4, p. 1587-1595.

Astronomy and Astrophysics

Astronomy

3

Algorithms, Peculiar Stars, Spectral Energy Distribution, Spectrum Analysis, Stellar Magnitude, Stellar Spectra, Cluster Analysis, Position (Location), Sky Surveys (Astronomy)

Scientific paper

We have performed a search for unusual objects among nearly 11,000 low-resolution spectra taken from 23 grens plates of the CFHT-Laval survey. The classification method used is based on a hierarchical clustering analysis technique. In a first step, we exploit the highly effective and objective power of the method at isolating uncommon energy distributions. The clustering analysis also provides us with a tool to determine synoptic groups for common stars in the sample. This permits us to identify peculiar objects using a template matching technique. We furnish positions, magnitudes, grens energy distributions and finding charts for four objects having energy distributions significantly different from the rest of the population. We identify 32 other objects of interest, among them: 14 strong emission line objects, eight suspected degenerate stars and three very blue spectra without a Balmer discontinuity.

Affiliated with

Also associated with

No associations

Rating

Classification algorithms applied to 10 588 low-resolution slitless spectra - A search for unusual and interesting objects 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 algorithms applied to 10 588 low-resolution slitless spectra - A search for unusual and interesting objects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Classification algorithms applied to 10 588 low-resolution slitless spectra - A search for unusual and interesting objects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1369225