Search for the Active Objects by Spectral Energy Distribution

Details Search for the Active Objects by Spectral Energy Distribution Search for the Active Objects by Spectral Energy Distribution

Aug 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confr..48d&link_type=abstract

"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 48-48"

Computer Science

Scientific paper

Most optically selected QSO samples are expected to be more or less complete at either z < 2.2 or z > 3.6, where QSOs show conspicuous colours in broad-band searches, while within this redshift band, confusion arises with stars and compact low-redshift galaxies. Any practical approach of following up QSO samples in this intermediate redshift range is forced to avoid strong contamination and observed mostly extreme objects, resulting in a high degree of incompleteness that is difficult to account for. This selection issue was one of the original motivations for the medium-band filter survey. This survey is based on photometric classification and redshift estimation using a set of 14 filters, of which 13 are medium-band filters with 200-300A FWHM, well matched to optimum detection of QSO emission lines and spread across the range of wavelengths observable by modern CCD detectors.

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