Bibcode
DOI
Kniazev, Alexei Y.; Grebel, Eva K.; Pustilnik, Simon A.; Pramskij, Alexander G.; Kniazeva, Tamara F.; Prada, Francisco; Harbeck, Daniel
Bibliographical reference
The Astronomical Journal, Volume 127, Issue 2, pp. 704-727.
Advertised on:
2
2004
Citations
73
Refereed citations
64
Description
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). 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. 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.