On application of multi-colour photometry of $δ$ Scuti stars
| dc.creator | Daszy{ń}ska-Daszkiewicz, J. | |
| dc.creator | Dziembowski, W. A. | |
| dc.creator | Pamyatnykh, A. A. | |
| dc.date | 2003-09-11 | |
| dc.date.accessioned | 2026-07-07T02:09:31Z | |
| dc.date.available | 2026-07-07T02:09:31Z | |
| dc.description | In $δ$ 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 $δ$ 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 $f$. | |
| dc.description | 4 pages, 3 figures to appear in Proceedings of IAU Colloquium 193, Variable Stars in the Local Group, July 2003, Christchurch, New Zealand, ASP Conf. Ser., eds. D. W. Kurtz & K. Pollard | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0309319 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0309319 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/6462 | |
| dc.subject | Astrophysics | |
| dc.title | On application of multi-colour photometry of $δ$ Scuti stars | |
| dc.type | text |