Active Galactic Nuclei in the Sloan Digital Sky Survey. I. Sample Selection

@article{Hao2005ActiveGN,
  title={Active Galactic Nuclei in the Sloan Digital Sky Survey. I. Sample Selection},
  author={Lei Hao and Michael A. Strauss and Christy Tremonti and David J. Schlegel and Timothy M. Heckman and Guinevere Kauffmann and Michael R. Blanton and Xiaohui Fan and James E. Gunn and Patrick B. Hall and vZeljko Ivezi'c and Gillian Knapp and Julian H. Krolik and Robert H. Lupton and Gordon T. Richards and Donald P. Schneider and Iskra V. Strateva and Nadia L. Zakamska and Jonathan V. Brinkmann and Robert J. Brunner and Gyula Pal Szokoly},
  journal={The Astronomical Journal},
  year={2005},
  volume={129},
  pages={1783-1794}
}
We have compiled a large sample of low-redshift active galactic nuclei (AGNs) identified via their emission-line characteristics from the spectroscopic data of the Sloan Digital Sky Survey. Since emission lines are often contaminated by stellar absorption lines, we developed an objective and efficient method of subtracting the stellar continuum from every galaxy spectrum before making emission-line measurements. The distribution of the measured Hα FWHM values of emission-line galaxies is… 
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Partly obscured accretion disc model to explain shifted broad Balmer emission lines of active galactic nuclei
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References

SHOWING 1-10 OF 63 REFERENCES
Double-peaked low-ionization emission lines in active galactic nuclei
We present a new sample of 116 double-peaked Balmer line active galactic nuclei (AGNs) selected from the Sloan Digital Sky Survey. Double-peaked emission lines are believed to originate in the
Active galactic nuclei in the sloan digital sky survey. II. Emission-line luminosity function
The emission-line luminosity function of active galactic nuclei (AGNs) is measured from about 3000 AGNs included in the main galaxy sample of the Sloan Digital Sky Survey within a redshift range of 0
A Search for “Dwarf'' Seyfert Nuclei. III. Spectroscopic Parameters and Properties of the Host Galaxies
We have completed an optical spectroscopic survey of the nuclear regions (r < 200 pc) of a large sample of nearby galaxies. Although the main objectives of the survey are to search for low-luminosity
Active Galactic Nuclei in the CNOC2 Field Galaxy Redshift Survey
We present a sample of 47 confirmed and 14 candidate active galactic nuclei (AGNs) discovered in the Canadian Network for Observational Cosmology field galaxy redshift survey (CNOC2). The sample
Composite Quasar Spectra from the Sloan Digital Sky Survey
We have created a variety of composite quasar spectra using a homogeneous data set of over 2200 spectra from the Sloan Digital Sky Survey (SDSS). The quasar sample spans a redshift range of 0.044 ≤ z
Average spectra of massive galaxies in the Sloan Digital Sky Survey
We combine Sloan Digital Sky Survey spectra of 22,000 luminous, red, bulge-dominated galaxies to get high signal-to-noise ratio average spectra in the rest-frame optical and ultraviolet (2600-7000
The host galaxies of active galactic nuclei
We examine the properties of the host galaxies of 22 623 narrow-line active galactic nuclei (AGN) with 0.02 < z < 0.3 selected from a complete sample of 122 808 galaxies from the Sloan Digital Sky
The Environment of Active Galactic Nuclei in the Sloan Digital Sky Survey
We present the observed fraction of galaxies with an active galactic nucleus (AGN) as a function of environment in the early data release of the Sloan Digital Sky Survey (SDSS). Using 4921 galaxies
Spectroscopic Target Selection in the Sloan Digital Sky Survey: The Main Galaxy Sample
We describe the algorithm that selects the main sample of galaxies for spectroscopy in the Sloan Digital Sky Survey (SDSS) from the photometric data obtained by the imaging survey. Galaxy photometric
Spectral analysis of the nuclear stellar population and gas emission in six nearby galaxies
Optical spectra were used to study the stellar population and gas emission, when present, in the central parts of the elliptical galaxies NGC 6958, NGC 6851 and ESO 185-G54, and the spiral galaxies
...
1
2
3
4
5
...