A Catalog of Narrow Line Seyfert 1 Galaxies from the Sloan Digital Sky Survey Data Release 12

Abstract

We present a new catalog of narrow-line Seyfert 1 (NLSy1) galaxies from the Sloan Digital Sky Survey Data Release 12 (SDSS DR12). This was obtained by a systematic analysis through modeling of the continuum and emission lines of the spectra of all the 68,859 SDSS DR12 objects that are classified as "QSO" by the SDSS spectroscopic pipeline with z < 0.8 and a median signal-to-noise ratio (S/N) > 2 per pixel. This catalog contains a total of 11,101 objects, which is about 5 times larger than the previously known NLSy1 galaxies. Their monochromatic continuum luminosity at 5100 A is found to be strongly correlated with H-beta, H-alpha, and [O III] emission line luminosities. The optical Fe II strength in NLSy1 galaxies is about two times larger than the broad- line Seyfert 1 (BLSy1) galaxies. About 5% of the catalog sources are detected in the FIRST survey. The Eddington ratio (XEdd) of NLSy1 galaxies has an average of log XEdd of -0.34, much higher than -1.03 found for BLSy1 galaxies. Their black hole masses (MBH) have an average of log MBH of 6.9 Msun, which is less than BLSy1 galaxies, which have an average of log MBH of 8.0 Msun. The MBH of NLSy1 galaxies is found to be correlated with their host galaxy velocity dispersion. Our analysis suggests that geometrical effects playing an important role in defining NLSy1 galaxies and their MBH deficit is perhaps due to their lower inclination compared to BLSy1 galaxies.

ApJS, 229:39 (16pp), 2017 April

References in corpus (22)

• The Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III
• A Catalog of Quasar Properties from SDSS DR7
• Revisiting the Unified Model of Active Galactic Nuclei
• PyNeb: a new tool for analyzing emission lines. I. Code description and validation of results
• A systematic variation of the stellar initial mass function in early-type galaxies
• Second ROSAT all-sky survey (2RXS) source catalogue
• A New Sample of Low-mass Black Holes in Active Galaxies
• The diversity of quasars unified by accretion and orientation
• A Comprehensive Study of 2 000 Narrow Line Seyfert 1 Galaxies from the Sloan Digital Sky Survey: I. The Sample
• Radio-loud Narrow-Line Type 1 Quasars
• A Population of Radio-loud Narrow Line Seyfert 1 Galaxies with Blazar-like Properties?
• The black hole mass - stellar velocity dispersion relation of narrow-line Seyfert 1 galaxies
• The Radio-Loud Fraction of Quasars is a Strong Function of Redshift and Optical Luminosity
• Are the black hole masses in Narrow Line Seyfert 1 galaxies actually small?
• Narrow-line Seyfert 1 Galaxies and the M_BH - sigma Relation
• A spectroscopic analysis of a sample of narrow-line Seyfert 1 galaxies selected from the Sloan Digital Sky Survey
• Radio-loud Narrow Line Seyfert 1 under a different perspective: a revised black hole mass estimate from optical spectropolarimetry
• Rest-frame Optical Spectra and Black Hole Masses of 3<z<6 Quasars
• The narrow-line region of narrow-line and broad-line type 1 AGN I. A zone of avoidance in density
• Differential interferometry of QSO broad line regions I: improving the reverberation mapping model fits and black hole mass estimates
• Fermi Monitoring of Radio-loud Narrow Line Seyfert 1 Galaxies
• Properties of the narrow line Seyfert 1 galaxies revisited

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• A comparative study of the physical properties for a representative sample of Narrow and Broad-line Seyfert galaxies
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• Probing the Heart of Active Narrow-line Seyfert 1 Galaxies with VERA Wideband Polarimetry
• Short time-scale variability of $\gamma$-ray-emitting narrow-line Seyfert 1 galaxies in optical and UV bands
• Narrow vs. Broad line Seyfert 1 galaxies: X-ray, optical and mid-infrared AGN characteristics
• Velocity offset between emission and absorption lines might be an effective indicator of dual core system
• The radio structure of the $\gamma$-ray narrow-line Seyfert 1 galaxy SDSS J211852.96$-$073227.5
• Spatially-resolved spectroscopy of narrow-line Seyfert 1 host galaxies
• A comprehensive radio study of narrow-line Seyfert 1 galaxies
• Characterization of the continuum and kinematical properties of nearby NLS1
• The Variability of the Narrow-line Seyfert 1 Galaxies from the PanSTARRS's View
• Brightness and colour variability in NLSy1s
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• Insights from the "Red devil" AT 2022fpx: A Dust-reddened Family of Tidal Disruption Events Excluded by Their Apparent Red Color?
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• The comparison of optical variability of broad-line Seyfert 1 and narrow-line Seyfert 1 galaxies from the view of Pan-STARRS
• Solid Identification of Extragalactic Gamma-Ray Source Using High-Resolution Radio Interferometric Observation
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