Low surface brightness galaxies in SDSS Virtual Observatory Resource

Authors
  1. Kniazev A.Y.
  2. Grebel E.K.
  3. Pustilnik S.A.
  4. Pramskij A.G.
  5. Kniazeva T.F.,Prada F.
  6. Harbeck D.
  7. Published by
    CDS
Abstract

In this paper we present results of a pilot study to use imaging data from the Sloan Digital Sky Survey (SDSS) to search for low surface brightness (LSB) galaxies. For our pilot study we use a test sample of 92 galaxies from the Impey et al. catalog distributed over 93 SDSS fields of the Early Data Release (EDR, <J/AJ/123/567>). Many galaxies from the test sample are either LSB or dwarf galaxies. To deal with the SDSS data most effectively, a new photometry software was created, which is described in this paper. We present the results of the selection algorithms applied to these 93 EDR fields. Two galaxies from the Impey et al. (1996, <J/ApJS/105/209>) test sample are very likely artifacts, as confirmed by follow-up imaging. With our algorithms we were able to recover 87 of the 90 remaining test sample galaxies, implying a detection rate of ~96.5%. The three missed galaxies fall too close to very bright stars or galaxies. In addition, 42 new galaxies with parameters similar to the test sample objects were found in these EDR fields (i.e.,~47% additional galaxies). We present the main photometric parameters of all identified galaxies and carry out first statistical comparisons. We tested the quality of our photometry by comparing the magnitudes for our test sample galaxies and other bright galaxies with values from the literature. All these tests yielded consistent results. We briefly discuss a few unusual galaxies found in our pilot study, including an LSB galaxy with a two-component disk and 10 new giant LSB galaxies.

Keywords
  1. galaxies
  2. photometry
  3. visible-astronomy
  4. sloan-photometry
  5. surface-photometry
Bibliographic source Bibcode
2004AJ....127..704K
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/127/704
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/127/704
Document Object Identifer DOI
doi:10.26093/cds/vizier.51270704

Access

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/127/704
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http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/127/704/catalog?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/127/704/catalog?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/127/704/catalog?

History

2006-03-25T11:28:11Z
Resource record created
2006-03-25T11:28:11Z
Created
2023-04-06T16:51:06Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr