Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing Cosmic Acceleration with Type Ia Supernovae   We discuss recent evidence for an accelerating Universe from measurements of
type Ia supernovae at high redshift, and describe tests of various systematic
effects such as extinction and evolution that could be biasing the cosmological
result. Continued observations of these objects, both over a wider wavelength
region and at higher redshift, should provide strong evidence in favor or
against the accelerating Universe hypothesis.

18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
17
The categories of this paper are: q-fin
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph