Chemistry and Physics Faculty Articles

Document Type

Article

Publication Date

4-30-2014

Publication Title

The Astrophysical Journal

Keywords

Galaxies: fundamental parameters, Galaxies: general, Galaxies: photometry, Galaxies: spiral, Galaxies: structure

ISSN

0004-637X

Volume

787

Issue/No.

1

First Page

1

Last Page

12

Abstract

We present a catalog of true edge-on disk galaxies automatically selected from the Seventh Data Release of the Sloan Digital Sky Survey (SDSS). A visual inspection of the g, r, and iimages of about 15,000 galaxies allowed us to split the initial sample of edge-on galaxy candidates into 4768 (31.8% of the initial sample) genuine edge-on galaxies, 8350 (55.7%) non-edge-on galaxies, and 1865 (12.5%) edge-on galaxies not suitable for simple automatic analysis because these objects either show signs of interaction and warps, or nearby bright stars project on it. We added more candidate galaxies from RFGC, EFIGI, RC3, and Galaxy Zoo catalogs found in the SDSS footprints. Our final sample consists of 5747 genuine edge-on galaxies. We estimate the structural parameters of the stellar disks (the stellar disk thickness, radial scale length, and central surface brightness) in the galaxies by analyzing photometric profiles in each of the g, r, and i images. We also perform simplified three-dimensional modeling of the light distribution in the stellar disks of edge-on galaxies from our sample. Our large sample is intended to be used for studying scaling relations in the stellar disks and bulges and for estimating parameters of the thick disks in different types of galaxies via the image stacking. In this paper, we present the sample selection procedure and general description of the sample.

Comments

©2014. The American Astronomical Society. All rights reserved.

Additional Comments

AAS Small Research grant program #s: RFBR-11-02-12247, RFBR-11-02-00471, RFBR-12-02-00685, RFBR-14-02-00810

DOI

10.1088/0004-637X/787/1/24

Peer Reviewed

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