Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass-dependent Color Evolution of Field Galaxies Back to z~3 Over the
  Wide Range of Stellar Mass   We use deep multi-band optical and near-infrared data for four general
fields, GOODS-South, HDF North/South, and IRAC UDF in GOODS-North to
investigate the evolution of the observed rest-frame U-V color of field
galaxies as a function of the stellar mass. In these four fields, the U-V color
distributions of the galaxies at each mass and redshift interval are very
similar. At 0.3<z<2.7, we found that more massive galaxies always tend to have
a redder U-V color. High- and low-mass galaxies exhibit quite different color
evolutions. As seen in our previous study in HDF-N, the color distribution of
low-mass (M_stellar < 3x10^9M_solar) galaxies becomes significantly bluer with
an increase in the redshift. This evolution of the average color can be
explained by a constant star formation rate model with z_form~4. On the other
hand, the average color of high-mass galaxies (M_stellar > 3x10^10M_solar)
evolves more strongly at a high redshift. Such mass-dependent color
distribution and its evolution indicate that galaxies with a larger stellar
mass appear to have shorter star-formation timescales, and on an average, they
form the larger fraction of their stars in the earlier epoch.

21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con