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1993ApJ...418..638Y - Astrophys. J., 418, 638-643 (1993/November-3)
A BBXRT observation of the high-luminosity quasar H 1821+643.
YAQOOB T., SERLEMITSOS P.J., MUSHOTZKY R.F., WEAVER K.A., MARSHALL F.E. and PETRE R.
Abstract (from CDS):
Abstract Copyright: ∼
Journal keyword(s): Galaxies: Quasars: Individual Alphanumeric: H 1821+643 - X-Rays: Galaxies
Simbad objects: 4
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