Narrow Line Seyfert 1 Galaxies from the Final Data Release of SDSSII

Details Narrow Line Seyfert 1 Galaxies from the Final Data Release of SDSSII Narrow Line Seyfert 1 Galaxies from the Final Data Release of SDSSII

May 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21832723t&link_type=abstract

American Astronomical Society, AAS Meeting #218, #327.23; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present a study of a sample of Narrow Line Seyfert 1 (NLS1) candidates extracted from the seventh data release of the Sloan Digital Sky Survey SDSSII. The sample is restricted to objects from the QSO database that are detected by ROSAT and have z < 0.39, FWHM(Hα) < 4000 km.s-1 and FWHM(Hβ) < 4000 km.s-1 as determined by the SDSS pipeline. We fit Hβ with a Gaussian and a Lorentzian in order to examine the various properties of the spectra with the width of the Lorentzian Hβ. We also look at the properties of the sample above the classic NLS1 cut-off of FWHM(Hβ) < 2000 km.s-1 .
We gratefully acknowledge the financial support from the College of Science, Engineering and Technology, and from the College of Graduate Studies at Minnesota State University. A.T. acknowledges the support from the US Department of State -The Fulbright Program and the AMIDEAST.

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