Published in

Cambridge University Press (CUP), Proceedings of the International Astronomical Union, S284(7), p. 309-311, 2011

DOI: 10.1017/s1743921312009325

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Publicly available database for spectral line measurements of SDSS DR7 galaxies

Journal article published in 2011 by Kyuseok Oh ORCID, Marc Sarzi, Kevin Schawinski ORCID, Sukyoung K. Yi
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

Full text: Unavailable

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Preprint: archiving allowed
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Postprint: archiving allowed
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Published version: archiving forbidden
Data provided by SHERPA/RoMEO

Abstract

AbstractWe 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/.

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