The Sedentary Multi-Frequency Survey. I. Statistical Identification and Cosmological Properties of HBL BL Lacs

Preprint English OPEN
Giommi, P.; Menna, M. T.; Padovani, P.;
(1999)
  • Related identifiers: doi: 10.1046/j.1365-8711.1999.02942.x
  • Subject: Astrophysics
    arxiv: Astrophysics::High Energy Astrophysical Phenomena | Astrophysics::Cosmology and Extragalactic Astrophysics

We have assembled a multi-frequency database by cross-correlating the NVSS catalog of radio sources with the RASSBSC list of soft X-ray sources, obtaining optical magnitude estimates from the Palomar and UK Schmidt surveys as provided by the APM and COSMOS on-line servi... View more
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