The FIRST Deep Flat Spectrum Radio Sample

Details The FIRST Deep Flat Spectrum Radio Sample The FIRST Deep Flat Spectrum Radio Sample

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999noao.prop..114l&link_type=abstract

NOAO Proposal ID #1999A-0114

Physics

Scientific paper

We propose to obtain spectra of ~100 unidentified FIRST flat spectrum radio sources. In conjunction with additional observations that will take place this December, the data proposed for here will allow us to construct a complete sample of ~550 blazars. This sample will be four times deeper than any previous radio-selected sample of flat spectrum sources. By virtue of its radio-selection, it will be free of selection biases that have limited the conclusions drawn from samples with X-ray or optical constraints. Once identification of this sample is complete, we will be able to investigate the underlying jet physics that governs the broadband emission in blazars and investigate the driving mechanism responsible for the large observed differences in broadband blazar spectral energy distributions. In addition, analysis of this sample will yield insight into jet production and propagation models. This FIRST flat spectrum sample will therefore enable us to test various unification schemes, and determine whether orientation, intrinsic spectral shape or bolometric luminosity (or some as yet undetermined parameter) drives the differences exhibited by blazars.

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