Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The classification of frequencies in the {\gamma} Doradus / {\delta}
  Scuti hybrid star HD 49434   Hybrid stars of the {\gamma} Doradus and {\delta} Scuti pulsation types have
great potential for asteroseismic analysis to explore their interior structure.
To achieve this, mode identi- fications of pulsational frequencies observed in
the stars must be made, a task which is far from simple. In this work we begin
the analysis by scrutinizing the frequencies found in the CoRoT photometric
satellite measurements and ground-based high-resolution spectroscopy of the
hybrid star HD 49434. The results show almost no consistency between the
frequencies found using the two techniques and no characteristic period
spacings or couplings were identified in either dataset. The spectroscopic data
additionally show no evidence for any long term (5 year) variation in the
dominant frequency. The 31 spectroscopic frequencies identified have standard
deviation profiles suggesting multiple modes sharing (l, m) in the {\delta}
Scuti frequency region and several skewed modes sharing the same (l, m) in the
{\gamma} Doradus frequency region. In addition, there is a clear frequency in
the {\gamma} Doradus frequency region that appears to be unrelated to the
others. We conclude HD 49434 remains a {\delta} Scuti/ {\gamma} Doradus
candidate hybrid star but more sophisticated models dealing with rotation are
sought to obtain a clear picture of the pulsational behaviour of this star.

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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-th
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The categories of this paper are: patt-sol
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: math-ph
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: cond-mat