High-degree non-radial modes in the δ Scuti star AV Ceti
نویسندگان
چکیده
منابع مشابه
WASP-33: the first δ Scuti exoplanet host star⋆
We report the discovery of photometric oscillations in the host star of the exoplanet WASP-33 b (HD 15082). The data were obtained in the R band in both transit and out-of-transit phases from the 0.3-m telescope and the Montcabrer Observatory and the 0.8-m telescope at the Montsec Astronomical Observatory. Proper fitting and subsequent removal of the transit signal reveals stellar photometric v...
متن کاملThe first high-amplitude δ Scuti star in an eclipsing binary system
We report the discovery of the first high-amplitude δ Scuti star in an eclipsing binary, which we have designated UNSW-V-500. The system is an Algol-type semi-detached eclipsing binary of maximum brightness V = 12.52 mag. A best-fitting solution to the binary light curve and two radial velocity curves is derived using the Wilson–Devinney code. We identify a late-A spectral-type primary componen...
متن کاملA comprehensive asteroseismic modelling of the high-amplitude δ Scuti star RV Arietis
We present a comprehensive asteroseismic study of the double-mode high-amplitude δ Scuti star HD 187642 (RV Ari). The modelling includes some of the most recent techniques: 1) effects of rotation on both equilibrium models and adiabatic oscillation spectrum, 2) non-adiabatic study of radial and non-radial modes, 3) relationship between the fundamental radial mode and the first overtone in the f...
متن کاملSeismology of δ Scuti stars in the Praesepe cluster II. Identification of radial modes and their associated stellar parameters
An analysis based on a comparison between observations and stellar models has been carried out to identify radial modes of oscillations in several multi-periodic δ Scuti stars of the Praesepe cluster (BU, BN, BW and BS Cnc). The assumption that all the stars considered have common parameters, such as metallicity, distance or age, is imposed as a constraint. Even so, there is a large number of p...
متن کاملOn the nature of the δ Scuti star star HD 115520
As a continuation of the study of the newly found δ Scuti star HD 115520, we present a period analysis of recently acquired photometric data covering four nights, as well as some conclusions on the nature of this star.
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Communications in Asteroseismology
سال: 2007
ISSN: 1021-2043,1021-2043
DOI: 10.1553/cia146s33