Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Red giant seismology: observations   The CoRoT and Kepler missions provide us with thousands of red-giant light
curves that allow a very precise asteroseismic study of these objects. Before
CoRoT and Kepler, the red-giant oscillation patterns remained obscure. Now,
these spectra are much more clear and unveil many crucial interior structure
properties. For thousands of red giants, we can derive from the seismic data
precise estimates of the stellar mass and radius, the evolutionary status of
the giants (with a clear difference between clump and RGB stars), the internal
differential rotation, the mass loss, the distance of the stars... Analysing
this mass of information is made easy by the identification of the largely
homologous red-giant oscillation patterns. For the first time, both pressure
and mixed mode oscillation patterns can be precisely depicted. The mixed-mode
analysis allows us, for instance, to probe directly the stellar core. Fine
details completing the red-giant oscillation pattern then provide further
information for a more detailed view on the interior structure, including
differential rotation.

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The categories of this paper are: atom-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn
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The categories of this paper are: mtrl-th