On application of multi-colour photometry of $δ$ Scuti stars

Details On application of multi-colour photometry of $δ$ Scuti stars On application of multi-colour photometry of $δ$ Scuti stars

2003-09-11

arxiv.org/abs/astro-ph/0309319v1

Astronomy and Astrophysics

Astrophysics

4 pages, 3 figures to appear in Proceedings of IAU Colloquium 193, Variable Stars in the Local Group, July 2003, Christchurch,

Scientific paper

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 $f$.

Affiliated with

Also associated with

No associations

Rating

On application of multi-colour photometry of $δ$ Scuti stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with On application of multi-colour photometry of $δ$ Scuti stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On application of multi-colour photometry of $δ$ Scuti stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-109274