Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Clusters of Galaxies at 1 < z < 2 : The Spitzer Adaptation of the
  Red-Sequence Cluster Survey   As the densest galaxy environments in the universe, clusters are vital to our
understanding of the role that environment plays in galaxy formation and
evolution. Unfortunately, the evolution of high-redshift cluster galaxies is
poorly understood because of the ``cluster desert'' that exists at 1 < z < 2.
The SpARCS collaboration is currently carrying out a 1-passband (z') imaging
survey which, when combined with the pre-existing 50 square degree 3.6 micron
Spitzer SWIRE Legacy Survey data, will efficiently detect hundreds of clusters
in the cluster desert using an infrared application of the well-proven cluster
red-sequence technique. We have already tested this 1-color (z' - [3.6])
approach using a 6 square degree ``pilot patch'' and shown it to be extremely
successful at detecting clusters at 1 < z < 2. The clusters discovered in this
project will be the first large sample of ``nascent'' galaxy clusters which
connect the star-forming proto-cluster regions at z > 2 to the quiescent
population at z < 1. The existing seven-passband Spitzer data (3.6, 4.5, 5.8,
8.0, 24, 70, 160 micron) will allow us to make the first measurements of the
evolution of the cluster red-sequence, IR luminosity function, and the mid-IR
dust-obscured star-formation rate for 1 < z < 2 clusters.

27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex