Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Detection of frequency spacings in the young O-type binary HD 46149 from
  CoRoT photometry   Using the CoRoT space based photometry of the O-type binary HD46149, stellar
atmospheric effects related to rotation can be separated from pulsations,
because they leave distinct signatures in the light curve. This offers the
possibility of characterising and exploiting any pulsations seismologically.
Combining high-quality space based photometry, multi-wavelength photometry,
spectroscopy and constraints imposed by binarity and cluster membership, the
detected pulsations in HD46149 are analyzed and compared with those for a grid
of stellar evolutionary models in a proof-of-concept approach. We present
evidence of solar-like oscillations in a massive O-type star, and show that the
observed frequency range and spacings are compatible with theoretical
predictions. Thus, we unlock and confirm the strong potential of this
seismically unexplored region in the HR diagram.

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The categories of this paper are: math
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The categories of this paper are: adap-org
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: mtrl-th
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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: q-alg
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: comp-gas
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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: cond-mat
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The categories of this paper are: hep-ph