Computer Science
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..141f&link_type=abstract
XMM-Newton Proposal ID #04037503
Computer Science
Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, 87Gb 1625+5001, First J073712.5, 87Gb 0907+2300, Xmm-Newton Proposal 04037503
Scientific paper
The FIRST Flat Spectrum Sample (FFSS) is a deep radio-selected sample, unbiased with respect to x-ray emission. It is designed to enable us to determine the true census of the different types of blazars, resolving a long-standing uncertainty, and the first step towards understanding how Nature makes jets. This proposal aims to determine the "type" of FIRST blazars, which is easily determined from radio-optical-X color and basic information about X-ray spectrum (hardness ratios). We propose to complete the x-ray characterization of a first FFSS subsample by observing the 17 sources for which no X-ray information currently exists. With this information we will be able to answer the key question: "What kind of jets does Nature make?"
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