Einstein database of quasars. I. (Wilkes+, 1994)

Details Einstein database of quasars. I. (Wilkes+, 1994) Einstein database of quasars. I. (Wilkes+, 1994)

Oct 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994ycat..20920053w&link_type=abstract

VizieR On-line Data Catalog: J/ApJS/92/53. Originally published in: 1994ApJS...92...53W

Astronomy and Astrophysics

Astronomy

Qsos, X-Ray Sources, Combined Data

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 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. (8 data files).

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