Zobrazeno 1 - 10
of 783
pro vyhledávání: '"Pavlovski K."'
Autor:
Tkachenko, A., Pavlovski, K., Serebriakova, N., Bowman, D. M., IJspeert, L., Gebruers, S., Southworth, J.
Abridged. Eclipsing spectroscopic double-lined binaries are the prime source of precise and accurate measurements of masses and radii of stars. These measurements provide a stringent test of models of stellar evolution that are persistently reported
Externí odkaz:
http://arxiv.org/abs/2312.14009
Publikováno v:
A&A 671, A139 (2023)
The surface chemical compositions of stars are affected by physical processes which bring the products of thermonuclear burning to the surface. Despite their potential in understanding the structure and evolution of stars, elemental abundances are av
Externí odkaz:
http://arxiv.org/abs/2301.04215
Autor:
Gaulme, P., Borkovits, T., Appourchaux, T., Pavlovski, K., Spada, F., Gehan, C., Ong, J., Miglio, A., Tkachenko, A., Mosser, B., Vrard, M., Benbakoura, M., Chojnowski, S. D., Perkins, J., Hedlund, A., Jackiewicz, J.
Publikováno v:
A&A 668, A173 (2022)
KIC 7955301 is a hierarchical triple system with eclipse timing and depth variations discovered by the Kepler mission. It is composed of a non-eclipsing primary star at the bottom of the red giant branch on a 209-day orbit with a K/G-type main-sequen
Externí odkaz:
http://arxiv.org/abs/2210.05312
Autor:
Pavlovski, K., Hummel, C. A., Tkachenko, A., Dervisoglu, A., Kayhan, C., Zavala, R. T., Hutter, D. J., Tycner, C., Sahin, T., Audenaert, J., Baeyens, R., Bodensteiner, J., Bowman, D. M., Gebruers, S., Jannsen, N. E., Mombarg, J. S. G.
Publikováno v:
A&A 658, A92 (2022)
Altough both components of the bright eclipsing binary $\alpha$ Dra having been resolved using long baseline interferometry and the secondary component shown to contribute some 15\% of the total flux, a spectroscopic detection of the companion star w
Externí odkaz:
http://arxiv.org/abs/2111.03887
Autor:
Graczyk, D., Pietrzyński, G., Gałan, C., Gieren, W., Tkachenko, A., Anderson, R. I., Gallenne, A., Górski, M., Hajdu, G., Kałuszyński, M., Karczmarek, P., Kervella, P., Maxted, P. F. L., Nardetto, N., Narloch, W., Pavlovski, K., Pilecki, B., Pych, W., Southworth, J., Storm, J., Suchomska, K., Taormina, M., Villanova, S., Wielgórski, P., Zgirski, B., Konorski, P.
Publikováno v:
A&A 649, A109 (2021)
The surface brightness -- colour relation (SBCR) is a basic tool in establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurately determined radii and trigonometric parallaxes allow for a calibrat
Externí odkaz:
http://arxiv.org/abs/2103.02077
We present an analysis of the high-mass eclipsing binary system VV Ori based on photometry from the TESS satellite. The primary star (B1V, 9.5 Msun) shows beta Cephei pulsations and the secondary (B7V, 3.8 Msun) is possibly a slowly-pulsating B star.
Externí odkaz:
http://arxiv.org/abs/2012.03947
V453 Cyg is an eclipsing binary containing 14 Msun and 11 Msun stars in an eccentric short-period orbit. We have discovered $\beta$ Cep-type pulsations in this system using TESS data. We identify seven significant pulsation frequencies, between 2.37
Externí odkaz:
http://arxiv.org/abs/2005.07559
Autor:
Tkachenko, A., Pavlovski, K., Johnston, C., Pedersen, M. G., Michielsen, M., Bowman, D. M., Southworth, J., Tsymbal, V., Aerts, C.
(Abridged) Eclipsing, spectroscopic double-lined binary star systems (SB2) are excellent laboratories for calibrating theories of stellar interior structure and evolution. We aim to investigate the mass discrepancy in binary stars. We study the effec
Externí odkaz:
http://arxiv.org/abs/2003.08982
Context: Intermediate-Mass stars are often overlooked as they are not supernova progenitors but still host convective cores and complex atmospheres which require computationally expensive treatment. Due to this, there is a general lack of such stars
Externí odkaz:
http://arxiv.org/abs/1905.12040
Algol-type binary systems are the product of rapid mass transfer between the initially more massive component to its companion. It is still unknown whether the process is conservative, or whether substantial mass is lost from the system. The history
Externí odkaz:
http://arxiv.org/abs/1810.01465