Bibcode
Méndez-Abreu, J.; Sánchez-Janssen, R.; Aguerri, J. A. L.
Bibliographical reference
EAS Publications Series, Volume 48, 2011, pp.305-306
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7
2011
Citations
0
Refereed citations
0
Description
We present a study of the bar fraction in the Coma cluster galaxies
based on a sample of ~190 galaxies selected from the SDSS-DR6 and
observed with the Hubble Space Telescope (HST) Advanced Camera for
Survey (ACS). We explore the presence of bars, detected by visual
classification, throughout an unprecedented luminosity range of 9 mag (-
23 < Mr < -14). We find that bars are hosted by
galaxies in a tight range of both luminosities (-22 < Mr
< -17) and masses (109 <
M∗/M&sun; < 1011). We find
also that the bar fraction does not vary significantly with the distance
to the cluster center, implying that cluster environment plays a
second-order role in bar formation/evolution. The shape of the bar
fraction distribution with respect to both luminosity and mass is well
matched by the luminosity distribution of disk galaxies in Coma,
indicating that bars are good tracers of cold stellar disks.