Exploring the Variable Sky with the Sloan Digital Sky Survey

We quantify the variability of faint unresolved optical sources using a catalog based on multiple SDSS imaging observations. The catalog covers SDSS Stripe 82, and contains 58 million photometric observations in the SDSS ugriz system for 1.4 million unresolved sources. In each photometric bandpass w...

Full description

Saved in:
Bibliographic Details
Published in:arXiv.org 2007-04
Main Authors: Sesar, Branimir, Ivezic, Zeljko, Lupton, Robert H, Juric, Mario, Gunn, James E, Knapp, Gillian R, De Lee, Nathan, Smith, J Allyn, Miknaitis, Gajus, Lin, Huan, Tucker, Douglas, Doi, Mamoru, Tanaka, Masayuki, Fukugita, Masataka, Holtzman, Jon, Kent, Steve, Yanny, Brian, Schlegel, David, Finkbeiner, Douglas, Padmanabhan, Nikhil, Rockosi, Constance M, Bond, Nicholas, Lee, Brian, Stoughton, Chris, Jester, Sebastian, Harris, Hugh, Harding, Paul, Brinkmann, Jon, Schneider, Donald P, York, Donald, Richmond, Michael W, Daniel Vanden Berk
Format: Article
Language:English
Subjects:
Bandpass
Color-color diagram
Loci
Photometry
Quasars
Red shift
Skewness
Sky surveys (astronomy)
Stars
Substructures
Variable stars
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We quantify the variability of faint unresolved optical sources using a catalog based on multiple SDSS imaging observations. The catalog covers SDSS Stripe 82, and contains 58 million photometric observations in the SDSS ugriz system for 1.4 million unresolved sources. In each photometric bandpass we compute various low-order lightcurve statistics and use them to select and study variable sources. We find that 2% of unresolved optical sources brighter than g=20.5 appear variable at the 0.05 mag level (rms) simultaneously in the g and r bands. The majority (2/3) of these variable sources are low-redshift (
ISSN:2331-8422
DOI:10.48550/arxiv.0704.0655