X‐Ray Observations of Optically Selected, Radio‐quiet Quasars. I. TheASCAResults | Zendy

I. M. George | Zendy; T. J. Turner | Zendy; T. Yaqoob | Zendy; H. Netzer | Zendy; Ari Laor | Zendy; R. F. Mushotzky | Zendy; K. Nandra | Zendy; Tadayuki Takahashi | Zendy

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X‐Ray Observations of Optically Selected, Radio‐quiet Quasars. I. TheASCAResults

Author(s) -

I. M. George,

T. J. Turner,

T. Yaqoob,

H. Netzer,

Ari Laor,

R. F. Mushotzky,

K. Nandra,

Tadayuki Takahashi

Publication year - 2000

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/308461

Subject(s) - physics , quasar , astrophysics , active galactic nucleus , power law , galaxy , spectral line , luminosity , flattening , quiet , astronomy , statistics , mathematics

We present the result of 27 ASCA observations of 26 radio-quiet quasars(RQQs) from the PG survey. All the RQQs were detected except 2 BALQSOs. We findthe variability characteristics of the sources to be consistent with Seyf-1s. Apowerlaw offers an acceptable description of the time-averaged spectra in the2-10 keV (RQQ-frame) band for all but 1 dataset. The photon indices vary fromobject to object over the range 1.5~

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