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Date and Time of the Query: 2019-07-22 T11:10:39 PDT
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For refcode 2010ApJ...713L..11Z:
Retrieve 114 NED objects in this reference.
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2010ApJ...713L..11Z A Comparison of Hard X-ray Photon Indices and Iron K{alpha} Emission Lines in X-ray Luminous Narrow- and Broad-line Seyfert 1 Galaxies Zhou, Xin-Lin; Zhang, Shuang-Nan Abstract. We use publicly available XMM-Newton data to systematically compare the hard X-ray photon indices, Gamma_2-10 keV_, and the iron K{alpha} emission lines of narrow- and broad-line Seyfert 1 (NLS1 and BLS1) galaxies. We compile a flux-limited (f_2-10 keV_ >= 1 x 10^--12^ erg s^--1^ cm^--2^) sample including 114 radio-quiet objects, with the 2-10 keV luminosity ranging from 10^41^ to 10^45^ erg s^--1^. Our main results are: (1) NLS1s and BLS1s show similar luminosity distributions; (2) the weighted means of Gamma_2-10 keV_ of NLS1s, BLS1s, and the total sample are 2.04 +/- 0.04, 1.74 +/- 0.02, and 1.84 +/- 0.02, respectively; a significant anti-correlation between Gamma_2-10 keV_ and FWHMH{beta} suggests that Gamma_2-10 keV_ > 2.0 may be taken to indicate the X-ray luminous NLS1 type; (3) the 6.4 keV narrow iron K{alpha} lines from NLS1s are generally weaker than that from BLS1s; this would indicate a smaller covering factor of the dusty tori in NLS1s if the line emission originates from the inner boundary region of the dusty torus in an active galactic nucleus; and (4) all the broadened iron K{alpha} lines with intrinsic width {sigma}>0.5 keV correspond to FWHMH{beta} <=4000 km s^--1^. Key words: accretion, accretion disks, line: profiles, surveys, X-rays: galaxies
Retrieve 114 NED objects in this reference.
Please click here for ADS abstract

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