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          Institute: MPI für Astronomie     Collection: Publikationen_mpia     Display Documents

ID: 198475.0, MPI für Astronomie / Publikationen_mpia
The metallicity-luminosity relation for low surface brightness galaxies
Authors:Kniazev, A. Y.; Grebel, E. K.; Pramskij, A. G.; Pustilnik, S. A.
Date of Publication (YYYY-MM-DD):2003
Title of Journal:American Astronomical Society Meeting
Journal Abbrev.:American Astronomical Society Meeting
Start Page:9105
End Page:– +
Sequence Number of Article:2003AAS...203.9105K
Review Status:not specified
Audience:Experts Only
Abstract / Description:We present the latest results from our survey
for Low Surface Brightness Galaxies in the Sloan
Digital Sky Survey (SDSS). We used public SDSS
imaging data to establish a sample of all
galaxies with radii gt; 11'' and a limiting
surface brightness of mulim(g) = 26.5
mag arcsec-2 within an area of 195
deg2 using own detection and analysis
software. The redshifts for all detected galaxies
were collected both from the SDSS and NED
databases. The spectra of about 200 galaxies
with unknown redshifts were observed with the 8m
VLT (ESO), 6m (SAO RAS), NTT (ESO), 3.5m (Calar
Alto) and 2.2m (Calar Alto) telescopes. We used
these and the existing SDSS spectra (totally 150
galaxies with mueff(g) gt; 22.5 mag
arcsec-2) to estimate metallicities
based on the empirical estimators such as the
line ratios ([NII]6584/Ha, [SII]6717,6731/Ha).
The latter we calibrated using our catalog of
SDSS DR1 emission-line galaxies with the oxygen
abundances from Te measurements. The
galaxy luminosities were determined using the
SDSS u,g,r,i,z images. We examine the
metallicity-luminosity relation for Low Surface
Brightness Galaxies in different SDSS filters
and compare it with the known
metallicity-luminosity relation for dwarf
irregular galaxies.
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astronomie
Identifiers:URL:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi... [ID No:1]
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