The Einstein database of IPC x-ray observations of optically selected and radio-selected quasars, 1.

Details The Einstein database of IPC x-ray observations of optically selected and radio-selected quasars, 1. The Einstein database of IPC x-ray observations of optically selected and radio-selected quasars, 1.

May 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apjs...92...53w&link_type=abstract

The Astrophysical Journal Supplement Series, vol. 92, no. 1, p. 53-109

Astronomy and Astrophysics

Astronomy

180

Data Bases, Errors, Quasars, Rates (Per Time), Red Shift, Seyfert Galaxies, Stellar Luminosity, X Ray Astronomy, Heao 2, Imaging Techniques, Proportional Counters, X Ray Imagery

Scientific paper

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 Active Galactic Nuclei (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.

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