Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An interferometric view of hot star disks   Optical long baseline interferometry was recently established as a technique
capable of resolving stars and their circumstellar environments at the
milliarcsecond (mas) resolution level. This high-resolution opens an entire new
window to the study of astrophysical systems, providing information
inaccessible by other techniques.
  Astrophysical disks are observed in a wide variety of systems, from galaxies
up to planetary rings, commonly sharing similar physical processes. Two
particular disk like systems are studied in the thesis: (i) B He-rich stars
that exhibits magnetic fields in order of kG and that trap their winds in
structures called magnetospheres; and (ii) Be stars, fast rotating stars that
create circumstellar viscous disks.
  This study uses the interferometric technique to investigate both the
photosphere proper and the circumstellar environment of these stars. The
objective is to combine interferometry with other observational techniques
(such as spectroscopy and polarimetry) to perform a complete and
well-constrained physical description of these systems. This description is
accompanied by radiative transfer models performed by the HDUST code.
  Keywords: stars: individual (Achernar), stars: fundamental parameters,
techniques: interferometric, circumstellar matter, stars: emission-line, Be,
stars: magnetic field

28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
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The categories of this paper are: funct-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con