Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interferometric Observations of Rapidly Rotating Stars   Optical interferometry provides us with a unique opportunity to improve our
understanding of stellar structure and evolution. Through direct observation of
rotationally distorted photospheres at sub-milliarcsecond scales, we are now
able to characterize latitude dependencies of stellar radius, temperature
structure, and even energy transport. These detailed new views of stars are
leading to revised thinking in a broad array of associated topics, such as
spectroscopy, stellar evolution, and exoplanet detection. As newly advanced
techniques and instrumentation mature, this topic in astronomy is poised to
greatly expand in depth and influence.

4
The categories of this paper are: cond-mat
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The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
18
The categories of this paper are: econ
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th