Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On application of multi-colour photometry of $\delta$ Scuti stars   In $\delta$ Scuti star models, the photometric amplitudes and phases exhibit
a strong dependence on convection, which enters through the complex parameter,
$f$, which describes the bolometric flux variation. We present a new method of
extracting simultaneously $\ell$ and $f$ from multi-colour data and apply it to
several $\delta$ Scuti stars. The inferred values of $f$ are sufficiently
accurate to yield an useful constraint on models of stellar convection.
  In addition, if the identified mode is radial, the multi-passband data may be
used to refine global stellar parameters. Finally, the usage of radial velocity
measurements to our method improves significantly determination of $\ell$ and
$f$.

15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph