Bibcode
Gutiérrez, C. M.; López-Corredoira, M.
Bibliographical reference
Astronomy and Astrophysics, Volume 571, id.A66, 8 pp.
Advertised on:
11
2014
Journal
Citations
28
Refereed citations
28
Description
Context. Most of the contribution to dust emission in clusters of
galaxies comes from late-type galaxies. However, several ejection
processes of material from these galaxies could introduce dust in the
intracluster media. Even a relatively low abundance of this dust could
act as an efficient cooling agent and have a relevant role in the
evolution of clusters. Aims: We present a study to estimate the
dust content in galaxy clusters. Methods: This was done by using
one the most complete existing catalogues of galaxy clusters based on
Sloan Digital Sky Survey (SDSS) data and following two methods: the
first one compares the colours of samples of galaxies in the background
of clusters with those of galaxies in the field. Using this method, we
have explored clustercentric distances up to 6 Mpc; this covers at least
2 × R200 for all the clusters in the sample. The
galaxies used in this first method were selected from the SDSS-DR9,
among those having reliable photometry and accurate estimation of
photometric redshifts. Using the colours of background galaxies, we
analyzed several regions at galactic latitudes | b | > 20° and
>50°. The results are largely independent of the galactic cut
applied. At | b | > 20°, the sample contains 56 985 clusters in
the redshift range 0.05
Related projects
Morphology and dynamics of the Milky Way
This project consists of two parts, each differentiated but both complementary: morphology and dynamics. Detailed study of the morphology of the Milky Way pretends to provide a data base for the stellar distribution in the most remote and heavily obscured regions of our Galaxy, through the development of semiempirical models based on the
Martín
López Corredoira