Mathematics – Probability
Scientific paper
Feb 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988pasp..100..266e&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 100, Feb. 1988, p. 266-278. Research supported by NSERC
Mathematics
Probability
9
Astronomical Spectroscopy, Image Processing, Quasars, Software Tools, Automation, Computerized Simulation, Photographic Plates, Probability Distribution Functions
Scientific paper
Automated software have been developed to process slitless spectra. The software, described in a previous paper, automatically separates stars from extended objects and quasars from stars. This paper describes the quasar search techniques and discusses the results. The performance of the software is compared and calibrated with a plate taken in a region of SA 57 that has been extensively surveyed by others using a variety of techniques: the proposed automated software performs very well. It is found that an eye search of the same plate is less complete than the automated search: surveys that rely on eye searches suffer from incompleteness at least from a magnitude brighter than the plate limit. It is shown how the complete automated analysis of a plate and computer simulations are used to calibrate and understand the characteristics of the present data.
Beauchemin Mario
Borra Ermanno
Edwards Glenn
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