Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dusty Blue Supergiants: News from High-Angular Resolution Observations   An overview is presented of the recent advances in understanding the B[e]
phenomenon among blue supergiant stars in light of high-angular resolution
observations and with an emphasis on the results obtained by means of long
baseline optical stellar interferometry. The focus of the review is on the
circumstellar material and evolutionary phase of B[e] supergiants, but recent
results on dust production in regular blue supergiants are also highlighted.

15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
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
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an