English
Related papers

Related papers: KIC 10526294: a slowly rotating B star with rotati…

200 papers

KIC 10526294 is a very slowly rotating and slowly pulsating late B-type star. Its 19 consecutive dipole gravity modes constitute a series with almost constant period spacing. This unique collection of identified modes probes the near-core…

Solar and Stellar Astrophysics · Physics 2015-07-22 Ehsan Moravveji , Conny Aerts , Peter I. Papics , Santiago Andres Triana , Bram Vandoren

The internal angular momentum distribution of a star is key to determine its evolution. Fortunately, the stellar internal rotation can be probed through studies of rotationally-split non-radial oscillation modes. In particular, detection of…

Solar and Stellar Astrophysics · Physics 2015-10-14 Santiago A. Triana , Ehsan Moravveji , Péter Pápics , Conny Aerts , Steven D. Kawaler , Joergen Christensen-Dalsgaard

Massive stars are important building blocks of the Universe, and their stellar structure and evolution models are fundamental cornerstones of various fields in modern astrophysics. The precision of these models is limited by our lack of…

In the overshoot mixing model with an exponentially decreasing diffusion coefficient, the initial value of the diffusion coefficient plays a crucial role. According to the turbulent convective mixing model, the characteristic length of…

Solar and Stellar Astrophysics · Physics 2023-08-09 Qian-Sheng Zhang , Li Yan , Wu Tao , Jiang Chen

KIC8264293 is a fast rotating B-type pulsator observed by Kepler satellite. Its photometric variability is mainly due to pulsations in high-order g modes. Besides, we detected a weak H$\alpha$ emission. Thus, the second source of…

Solar and Stellar Astrophysics · Physics 2022-02-09 Wojciech Szewczuk , Przemysław Walczak , Jadwiga Daszyńska-Daszkiewicz , Dawid Moździerski

We present the first detection of a rotationally affected series consisting of 36 consecutive high-order sectoral dipole gravity modes in a slowly pulsating B (SPB) star. The results are based on the analysis of four years of virtually…

Solar and Stellar Astrophysics · Physics 2016-08-08 P. I. Pápics , A. Tkachenko , C. Aerts , T. Van Reeth , K. De Smedt , M. Hillen , R. Oestensen , E. Moravveji

The recently discovered subdwarf B (sdB) pulsator KIC7668647 is one of the 18 pulsating sdB stars detected in the Kepler field. It features a rich g-mode frequency spectrum, with a few low-amplitude p-modes at short periods. We use new…

Solar and Stellar Astrophysics · Physics 2014-11-05 J. H. Telting , A. S. Baran , P. Nemeth , R. H. Ostensen , T. Kupfer , S. Macfarlane , U. Heber , C. Aerts , S. Geier

The continuous high-precision photometric observations provided by the CoRoT and Kepler space missions have allowed us to better understand the structure and dynamics of red giants using asteroseismic techniques. A small fraction of these…

The recently discovered subdwarf B (sdB) pulsator KIC11558725 features a rich g-mode frequency spectrum, with a few low-amplitude p-modes at short periods, and is a promising target for a seismic study aiming to constrain the internal…

KIC10001893 is one out of 19 subdwarf-B (sdB) pulsators observed by the Kepler spacecraft in its primary mission. In addition to tens of pulsation frequencies in the g-mode domain, its Fourier spectrum shows three weak peaks at very low…

Earth and Planetary Astrophysics · Physics 2014-11-05 R. Silvotti , S. Charpinet , E. Green , G. Fontaine , J. H. Telting , R. H. Ostensen , V. Van Grootel , A. S. Baran , S. Schuh , L. Fox Machado

We report on extended photometry of two pulsating sdB stars in close binaries. For both cases, we use rotational splitting of the pulsation frequencies to show that the sdB component rotates much too slowly to be in synchronous rotation. We…

The subdwarf-B pulsator, KIC 10553698A, is one of 16 such objects observed with one-minute sampling for most of the duration of the Kepler Mission. Like most of these stars, it displays a rich g-mode pulsation spectrum with several clear…

Solar and Stellar Astrophysics · Physics 2014-09-10 R. H. Østensen , J. H. Telting , M. D. Reed , A. S. Baran , P. Nemeth , F. Kiaeerad

We present a spectroscopic/photometric analysis of the rapid rotator KIC8429280, discovered by ourselves as a very young star and observed by the Kepler mission. We use spectroscopic/photometric ground-based data to derive stellar…

Solar and Stellar Astrophysics · Physics 2015-05-28 A. Frasca , H. -E. Fröhlich , A. Bonanno , G. Catanzaro , K. Biazzo , J. Molenda-Zakowicz

The evolved main-sequence Sun-like stars KIC 10273246 (F-type) and KIC 10920273 (G-type) were observed with the NASA Kepler satellite for approximately ten months with a duty cycle in excess of 90%. Such continuous and long observations are…

We present the results of the asteroseismic analysis of the red-giant star KIC 4351319 (TYC 3124-914-1), observed for 30 days in short-cadence mode with the Kepler satellite. The analysis has allowed us to determine the large and small…

We present an asteroseismic study of the solar-like stars KIC 11395018, KIC 10273246, KIC 10920273, KIC 10339342, and KIC 11234888 using short-cadence time series of more than eight months from the Kepler satellite. For four of these stars,…

Observations from the Kepler satellite were recently published for three bright G-type stars, which were monitored during the first 33.5d of science operations. One of these stars, KIC 11026764, exhibits a characteristic pattern of…

An asteroseismic analysis has revealed a magnetic field in the deep interior of a slowly-rotating main-sequence F star KIC9244992, which was observed by the Kepler spacecraft for four years. The star shows clear asymmetry of frequency…

Solar and Stellar Astrophysics · Physics 2025-12-31 Masao Takata , Simon J. Murphy , Donald W. Kurtz , Hideyuki Saio , Hiromoto Shibahashi

We analyse three years of nearly-continuous Kepler spacecraft short cadence observations of the pulsating subdwarf B star KIC 3527751. We detect a total of 251 periodicities, most in the g-mode domain, but some where p-modes occur,…

Solar and Stellar Astrophysics · Physics 2015-05-27 H. M. Foster , M. D. Reed , J. H. Telting , R. H. Ostensen , A. S. Baran
‹ Prev 1 2 3 10 Next ›