Issue |
A&A
Volume 422, Number 1, July IV 2004
|
|
---|---|---|
Page(s) | L5 - L8 | |
Section | Letters | |
DOI | https://doi.org/10.1051/0004-6361:20040185 | |
Published online | 06 July 2004 |
Letter to the Editor
The environment of Low Surface Brightness galaxies
Astronomisches Institut, Ruhr-Universität Bochum (AIRUB), Universitätsstr. 150, 44780 Bochum, Germany e-mail: [dominik.rosenbaum;bomans]@astro.rub.de
Corresponding author: S. D. Rosenbaum, dominik.rosenbaum@astro.rub.de
Received:
5
May
2004
Accepted:
26
May
2004
Using the Early Data Release of the Sloan Digital Sky Survey (SDSS)
we investigated
the clustering properties of Low Surface Brightness (LSB) galaxies
in comparison to normal, High Surface Brightness (HSB) galaxies.
We selected LSB galaxies and HSB galaxies with well measured redshifts
from the SDSS data base and
performed three-dimensional neighbour counting analysis within spheres
of radii between 0.8 Mpc and 8.0 Mpc. As a second analysis method we used
an neighbour analysis with N varying from one to ten galaxies.
Our results show significant differences between the galaxy densities of
LSB galaxies and HSB galaxies on scales from 2 to 5 Mpc. At scales larger
than 5 Mpc LSB and HSB galaxies share the same clustering
properties. In the pie-slice diagrams the LSB galaxies appear to favour
the inner rims of filaments as defined by the HSB galaxies, with a couple
of LSB galaxies even being located inside the voids.
Our results support the idea of gas-rich LSB galaxies forming and developing
in low density regions without many galaxy interactions and just now reaching
the filaments of the large scale structure.
Key words: galaxies: distances and redshifts / galaxies: evolution / galaxies: statistics
© ESO, 2004
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