Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Deep Near-Infrared Imaging Surveys and the Stellar Content of High
  Redshift Galaxies   Deep, near-infrared imaging surveys have been motivated by the desire to
study the rest-frame optical properties and stellar content of galaxies at high
redshift. Here we briefly review their history, and illustrate one application,
using HST NICMOS imaging of the Hubble Deep Field North to examine the
rest-frame optical luminosities and colors of galaxies at 2 < z < 3, and to
constrain their stellar masses. The rest-frame B-band luminosity density at z =
2.5 is similar to that in the local universe, but the galaxies are evidently
less massive, with rapid star formation and low mass-to-light ratios. There are
few candidates for red, non-star-forming galaxies at these redshifts to the
HDF/NICMOS limits. We estimate a stellar mass density at 2 < z < 3 that is ~5%
of the present-day value, with an upper bound of <= 30%. Future headway will
come from wide-field ground-based surveys, multiplexing infrared spectrographs,
and new space-based facilities such as HST/WFC3 and SIRTF/IRAC.

27
The categories of this paper are: comp-gas
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph