New triple-mode high-amplitude Delta Scuti variables

نویسندگان

چکیده

Abstract I present a detection of four new triple-mode high-amplitude Delta Scuti variables, pulsating in the fundamental, first, and second overtone modes. This is addition to ten known cases Galaxy. used data ASAS-SN analyzed them using WinEfk code by V. P. Goranskij. Light elements parameters light curves were obtained.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A&a Manuscript No. Pulsation Models of Scuti Variables I. the High{amplitude Double{mode Stars

The relations between high{amplitude Scuti stars and the much more abundant low{amplitude Sct variables are not clear. Both groups have similar periods and seem to have almost the same basic physical properties , although their light{curve characteristics are very diierent. In the last few years much improved observational data have been published, and improved theoretical physics | in particul...

متن کامل

Amplitude investigation of δ Scuti variables in open clusters

We report here the results of a statistical analysis of 28 δ Scuti stars from five open clusters, α Persei, Pleiades, Hyades, Praesepe and Coma. These δ Scuti variables, most of which are on the main sequence, tend to show a positive correlation between oscillation amplitude and absolute luminosity. No correlation is found between amplitude and effective temperature .

متن کامل

The first high-amplitude delta 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 bestfitting 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 component...

متن کامل

Delta Scuti and Related Stars

The results obtained by means of the photometric approach to the study of δ Sct stars are extensively discussed. The different frequency contents of the three best candidates for asteroseismological studies (FG Vir, 4 CVn and XX Pyx) are presented and compared; the importance of the amplitude variations and of the combination terms is emphasized. The analysis of other multiperiodic variables sh...

متن کامل

Incidence of high-amplitude δ Scuti type variable stars

An order-of-magnitude estimate for the incidence of high-amplitude δ Scuti-type variable stars (HADS) in the δ Scuti area of the H-R diagram is calculated. Using a model for the stellar distribution in the Milky Way, we calculate the number of stars that are expected to fall in the δ Scuti area of the H-R diagram within the magnitude range and sky coverage of the ROTSE Survey for Variables I (R...

متن کامل

ذخیره 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: Baltic Astronomy

سال: 2022

ISSN: ['2543-6376']

DOI: https://doi.org/10.1515/astro-2022-0020