Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Scrutinizing Exotic Cosmological Models Using ESSENCE Supernova Data
  Combined with Other Cosmological Probes   The first cosmological results from the ESSENCE supernova survey (Wood-Vasey
et al. 2007) are extended to a wider range of cosmological models including
dynamical dark energy and non-standard cosmological models. We fold in a
greater number of external data sets such as the recent Higher-z release of
high-redshift supernovae (Riess et al. 2007) as well as several complementary
cosmological probes. Model comparison statistics such as the Bayesian and
Akaike information criteria are applied to gauge the worth of models. These
statistics favor models that give a good fit with fewer parameters.
  Based on this analysis, the preferred cosmological model is the flat
cosmological constant model, where the expansion history of the universe can be
adequately described with only one free parameter describing the energy content
of the universe. Among the more exotic models that provide good fits to the
data, we note a preference for models whose best-fit parameters reduce them to
the cosmological constant model.

21
The categories of this paper are: adap-org
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph