Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A method for determining radio continuum spectra, and its application to
  large surveys   A new tool to extract cross-identifications and radio continuum spectra from
radio catalogues contained in the VIZIER database of the CDS is presented. The
code can handle radio surveys at different frequencies with different
resolutions. It has been applied to 22 survey catalogues at 11 different
frequencies containing a total of 3.5 million sources, which resulted in over
700000 independent radio cross-identifications and ~67000 independent radio
spectra with more than two frequency points. A validation of the code has been
performed using independent radio cross-correlations from the literature. The
mean error of the determined spectral index is +-0.3. The code produces an
output of variable format that can easily be adapted to the purpose of the
user.

31
The categories of this paper are: ao-sci
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th