THE EINSTEIN DATABASE OF IPC X-RAY OBSERVATIONS OF OPTICALLY SELECTED AND RADIO-SELECTED QUASARS .1.

BJ WILKES*, H TANANBAUM, DM WORRALL, Y AVNI, MS OEY, J FLANAGAN, Diana M Worrall

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

Abstract

We present the first volume of the Einstein quasar database. The database includes estimates of the X-ray count rates, fluxes, and luminosities for 514 quasars and Seyfert 1 galaxies observed with the Imaging Proportional Counter (IPC) aboard the Einstein Observatory. All were previously known optically selected or radio-selected objects, and most were the targets of the X-ray observations. The X-ray properties of the AGNs have been derived by reanalyzing the IPC data in a systematic manner to provide a uniform database for general use by the astronomical community. We use the database to extend earlier quasar luminosity studies which were made using only a subset of the currently available data. The database can be accessed on internet via the SAO Einstein on-line system (''Einline'') and is available in ASCII format on magnetic tape and DOS diskette.

Original languageEnglish
Pages (from-to)53-109
Number of pages57
JournalAstrophysical Journal Supplement Series
Volume92
Issue number1
Publication statusPublished - May 1994

Keywords

  • GALAXIES, SEYFERT
  • QUASARS, GENERAL
  • X-RAYS, GALAXIES
  • STELLAR OBJECTS
  • ENERGY-DISTRIBUTIONS
  • EMISSION
  • SPECTRA
  • CATALOG
  • SAMPLE
  • RATIO
  • QSOS
  • EXTINCTION
  • DEPENDENCE

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