Image of Alice in Wonderland at the Mad Hatter's tea party You are cordially invited to afternoon tea and biscuits wine and chocolate

Astronomy Tea Talks at Caltech

Mondays, Robinson 106
Tea:  4.00pm
Talk: 4.15pm

Organised by:

2007 - 2008 season:
3 December 2007 Yeng-Tin Lin (Princeton)

"Fundamental properties of cluster galaxies and their redshift evolution "


Galaxy clusters represent an excellent laboratory for understanding
various processes involving the galaxies, the dark matter potential, and
the hot intracluster medium. Furthermore, in light of the on-going large
scale cluster surveys (e.g. ACT, SPT, APEX-SZ), it is of critical
importance that we understand the evolution of clusters towards z~1.

I will present a detailed analysis of several fundamental properties
(spatial distribution, luminosity function, mass-observable scaling
relations) for various classes of cluster galaxies, including the blue and
red galaxies, AGNs, and brightest cluster galaxies, based on large samples
of clusters at z<0.2. In particular, the relevance of these observations
to the halo occupation distribution formalism, the evolution of cluster
galaxies, and the environmental dependence of the radio-loud AGN
phenomenon, will be discussed. Finally, the redshift evolution of the
cluster galaxy population out to z=0.9 is studied in terms of the luminous
red galaxies, as well as the scaling relations.
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