Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A representative sample of Be stars IV: Infrared Photometry and the
  Continuum Excess   We present infra-red (JHK) photometry of 52 isolated Be stars of spectral
types O9--B9 and luminosity classes III--V. We describe a new method of
reduction, enabling separation of interstellar reddening and circumstellar
excess. Using this technique we find that the disc emission makes a maximum
contribution to the optical (B-V) colour of a few tenths of a magnitude. We
find strong correlations between a range of emission lines (H\alpha, Br\gamma,
Br11, and Br18) from the Be stars' discs, and the circumstellar continuum
excesses. We also find that stellar rotation and disc excess are correlated.

34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom