Hostname: page-component-848d4c4894-8kt4b Total loading time: 0 Render date: 2024-07-04T01:07:06.552Z Has data issue: false hasContentIssue false
  • English
  • Français

Publicly available database for spectral line measurements of SDSS DR7 galaxies

Published online by Cambridge University Press:  17 August 2012

Kyuseok Oh ,
Marc Sarzi ,
Kevin Schawinski  and
Sukyoung K. Yi
Kyuseok Oh
Affiliation:
Department of Astronomy, Yonsei University, Seoul 120-749, Korea email: ksoh@galaxy.yonsei.ac.kr
Marc Sarzi
Affiliation:
Centre for Astrophysics Research, University of Hertfordshire, Hatfield AL10 9AB, UK
Kevin Schawinski
Affiliation:
Yale Center for Astronomy and Astrophysics, Yale University, P.O. Box 208121, New Haven, CT 06511, U.S.A. Einstein Fellow
Sukyoung K. Yi
Affiliation:
Department of Astronomy, Yonsei University, Seoul 120-749, Korea email: ksoh@galaxy.yonsei.ac.kr
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present a new database of absorption and emission-line measurements based on the Sloan Digital Sky Survey (SDSS) 7th data release of galaxies within a redshift of 0.2. Using the publicly available penalized pixel-fitting (pPXF) and gas and absorption line fitting (gandalf) codes, our work improve the existing measurements for stellar kinematics, the strength of various absorption line features, and the flux and width of the emissions from different species of ionised gas. Most notable of our work is that, we provide quality of the fit to assess reliability of the measurements. The quality assessment can be highly effective for finding new classes of objects. For example, based on the quality assessment around the Ha and [NII] nebular lines, we found approximately 1% of the SDSS spectra which classified as galaxies by the SDSS pipeline are in fact type I Seyfert AGN. This paper presents a summary of the recent paper, Oh et al.(2011). The database is publicly available at http://gem.yonsei.ac.kr/ossy/.

Keywords

catalogsgalaxies:abundancesgalaxies:stellar contentgalaxies:statistics
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S284: The Spectral Energy Distribution of Galaxies , September 2011 , pp. 309 - 311
Copyright
Copyright © International Astronomical Union 2012

References

Abazajian, K. N., et al. 2009, ApJS, 182, 543CrossRefGoogle Scholar
Baldwin, J. A., Phillips, M. M., & Terlevich, R. 1981, PASP, 93, 5CrossRefGoogle Scholar
Bruzual, G. & Charlot, S. 2003, MNRAS, 344, 1000CrossRefGoogle Scholar
Cappellari, M. & Emsellem, E. 2004, PASP, 116, 138CrossRefGoogle Scholar
Davies, R. L., Sadler, E. M., & Peletier, R. F. 1993, MNRAS, 262, 650CrossRefGoogle Scholar
Emsellem, E., et al. 2004, MNRAS, 352, 721CrossRefGoogle Scholar
Fisher, D., Franx, M., & Illingworth, G. 1995, ApJ, 448, 119CrossRefGoogle Scholar
Fisher, D., Franx, M., & Illingworth, G. 1996, ApJ, 459, 110CrossRefGoogle Scholar
Goudfrooij, P. & Emsellem, E. 1996, A&A, 306, L45.Google Scholar
Jorgensen, I. 1999, MNRAS, 306, 607CrossRefGoogle Scholar
Kauffmann, G., et al. 2003, MNRAS, 346, 1055CrossRefGoogle Scholar
Kewley, L. J., Dopita, M. A., Sutherland, R. S., Heisler, C. A., & Trevena, J. 2001, ApJ, 556, 121CrossRefGoogle Scholar
Kuntschner, H. 2000, MNRAS, 315, 184CrossRefGoogle Scholar
Kuntschner, H., et al. 2006, MNRAS, 369, 497CrossRefGoogle Scholar
Oh, K., Sarzi, M., Schawinski, K., & Yi, S. K. 2011, ApJS, 195, 13CrossRefGoogle Scholar
Osterbrock, D. E. & Pogge, R. W. 1985, ApJ, 297, 166CrossRefGoogle Scholar
Sánchez-Blázquez, P., et al. 2006, MNRAS, 371, 703CrossRefGoogle Scholar
Sarzi, M., et al. 2006, MNRAS, 366, 1151CrossRefGoogle Scholar
Schawinski, K., et al. 2007, MNRAS, 382, 1415CrossRefGoogle Scholar
Schlegel, D. J., Finkbeiner, D. P., & Davis, M. 1998, ApJ, 500, 525CrossRefGoogle Scholar
Thomas, D., Maraston, C., & Bender, R. 2003, MNRAS, 339, 897CrossRefGoogle Scholar
Veilleux, S. & Osterbrock, D. E. 1987, ApJS, 63, 295CrossRefGoogle Scholar