Computer Science
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004xmm..prop..145f&link_type=abstract
XMM-Newton Proposal ID #03040713
Computer Science
Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, 87Gb 1107+4419, 87Gb 1025+2416, 87Gb 1645+2711, 87Gb 0819+4051, Nvss J124638+56, First J111753.3, 87Gb 1604+2725, First J134437.0, First J124748.0, First J130941.4, First J141458.2, 87Gb 1104+5235, First J093214.2, Xmm-Newton Proposal 03040713
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 remaining 13 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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