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We present results of a multi-site photometric campaign on the high-amplitude $\delta$\,Scuti star KIC\,6382916 in the {\it Kepler} field. The star was observed over a 85-d interval at five different sites in North America and Europe during…

Time-series photometric observations were made for the High Amplitude $\delta$ Scuti star CW Ser between 2011 and 2012 at the Xinglong Station of National Astronomical Observatories of China. After the frequency analysis of the light…

Solar and Stellar Astrophysics · Physics 2015-06-15 Jia-Shu Niu , Jian-Ning Fu , Wei-Kai Zong

$\delta$ Scuti stars are remarkable objects for asteroseismology. In spite of decades of investigations, there are still important questions about these pulsating stars to be answered, such as their positions in $\log$$T_{\rm eff}$ $-$…

Solar and Stellar Astrophysics · Physics 2017-08-02 F. Kahraman Aliçavuş , E. Niemczura , M. Polińska , K. G. Hełminiak , P. Lampens , J. Molenda-Żakowicz , N. Ukita , E. Kambe

In the last years, space missions such as COROT, Kepler or MOST have provided very accurate photometric observational data. In the particular case of $\delta$ Scuti stars, the observed frequency spectra have hundreds (if not thousands) of…

Solar and Stellar Astrophysics · Physics 2015-03-13 A. Moya , A. García Hernández , J. -C. Suárez , C. Rodríguez-López , R. Garrido

We present the first catalogue of double-mode and multi-mode high amplitude $\delta$ Scuti star (HADS) in the Galaxy. The catalogue contains source name, coordinates, radial modes such as the fundamental (F, period P0), first-overtone (1O,…

Solar and Stellar Astrophysics · Physics 2021-10-27 Tao-Zhi Yang , Zhao-Yu Zuo , Xin-Yue Wang , Xiao-Ya Sun , Rui-Xuan Tang

A photometric variability study of a sample of northern field stars, which previously classified as either PMS or Herbig Ae/Be objects, has been undertaken with the purpose of detecting {\delta} Scuti-type pulsations. Determination of…

Solar and Stellar Astrophysics · Physics 2014-09-05 D. Díaz-Fraile , E. Rodríguez , P. J. Amado

The preliminary results of new photometric observations of the $\delta$ Scuti stars 7 Aql and 8 Aql are reported. 51 hr of $uvby-\beta$ photoelectric photometric data were obtained over the period June and July 2007 at the San Pedro…

Solar and Stellar Astrophysics · Physics 2014-11-20 L. Fox Machado , M. Alvarez , L. Parrao , J. H. Pena

We present new photometric data for seven high-amplitude delta Scuti stars. The observations were acquired between 1996 and 2002, mostly in the Johnson photometric system. For one star (GW UMa), our observations are the first since the…

A systematic search for gamma Dor and gamma Dor - delta Scuti hybrid pulsators was conducted on the CoRoT LRa01 Exo-archive yielding a total of 418 gamma Dor and 274 hybrid candidates. After an automatic jump correction 194 and 167…

Solar and Stellar Astrophysics · Physics 2010-07-20 M. Hareter , P. Reegen , A. Miglio , J. Montalban , A. Kaiser , I. Dekany , E. Guenther , E. Poretti , P. Mathias , W. Weiss

Hybrid stars of the {\gamma} Doradus and {\delta} Scuti pulsation types have great potential for asteroseismic analysis to explore their interior structure. To achieve this, mode identi- fications of pulsational frequencies observed in the…

Solar and Stellar Astrophysics · Physics 2015-06-23 E. Brunsden , K. R. Pollard , P. L. Cottrell , K. Uytterhoeven , D. J. Wright , P. De Cat

We present high-precision time-series photometry of the classical delta Scuti star HD 144277 obtained with the MOST (Microvariability and Oscillations of STars) satellite in two consecutive years. The observed regular frequency patterns are…

Observing Delta Scuti stars is most important as their multi-frequency spectrum of radial pulsations provide strong constraints on the physics of the stars interior; so any new detection and observation of these stars is a valuable…

We propose that KIC 1573174 is a quadruple-mode $\delta$ Scuti star with pulsation amplitudes between those of the HADS (high-amplitude Delta Scuti star) group and average low-amplitude pulsators. The radial modes detected in this star…

Solar and Stellar Astrophysics · Physics 2022-06-22 Chenglong Lv , Ali Esamdin , Javier Pascual-Granado , Taozhi Yang , Dongxiang Shen

We concentrate on an asteroseismological study of HD 261711, a rather hot delta Scuti type pulsating member of the young open cluster NGC 2264 located at the blue border of the instability region. HD 261711 was discovered to be a pre-main…

71 Tau was discovered to be a $\delta$ Scuti star by Horan (1979, AJ 84, 1770). To our knowledge no other photometry of this star has been published. 71 Tau is the second brightest X-ray source in the Hyades and has been shown to be…

Astrophysics · Physics 2007-05-23 Kevin Krisciunas , Theodore Simon , Richard A. Crowe , Mavourneen Roberts

We present the results of a multi-site photometric campaign carried out in 2004-2008 for the Algol-type eclipsing binary system CT Her, the primary component of which shows Delta Scuti-type oscillations. Our data consist of differential…

We have searched for photometric variability in 95 Vir, a fast rotating, chromospherically active early F-type star, which was observed in the framework of Campaign 6 of the Kepler K2 mission. Available literature information on 95 Vir were…

Solar and Stellar Astrophysics · Physics 2017-04-19 Ernst Paunzen , Stefan Huemmerich , Klaus Bernhard , Przemek Walczak

We identify delta Scuti pulsators amongst members of the recently-discovered Cep--Her Complex using light curves from the Transiting Exoplanet Survey Satellite (TESS). We use Gaia colours and magnitudes to isolate a subsample of provisional…

Solar and Stellar Astrophysics · Physics 2024-10-10 Simon J. Murphy , Timothy R. Bedding , Anuj Gautam , Ronan P. Kerr , Prasad Mani

The results of an observational campaign on the new $\delta$ Scuti pulsator \astrobj{HD~207331} are reported. The star was observed photometrically from August 26 to September 2, 2009 from the Observatorio San Pedro M\'artir (0.84-m…

Solar and Stellar Astrophysics · Physics 2010-07-14 L. Fox Machado , W. J. Schuster , C. Zurita , J. ~S. Silva , R. Michel