Zobrazeno 1 - 10
of 114
pro vyhledávání: '"Saesen, S."'
Autor:
Moździerski, D., Pigulski, A., Kołaczkowski, Z., Michalska, G., Kopacki, G., Carrier, F., Walczak, P., Narwid, A., Stęślicki, M., Fu, J. -N., Jiang, X. -J., Zhang, Ch., Jackiewicz, J., Telting, J., Morel, T., Saesen, S., Zahajkiewicz, E., Bruś, P., Śródka, P., Vučković, M., Verhoelst, T., Van Helshoecht, V., Lefever, K., Gielen, C., Decin, L., Vanautgaerden, J., Aerts, C.
Publikováno v:
A&A 632, A95 (2019)
Asteroseismology offers the possibility of probing stellar interiors and testing evolutionary and seismic models. Precise photometry and spectroscopy obtained during multi-site campaigns on young open clusters allows discovering rich samples of pulsa
Externí odkaz:
http://arxiv.org/abs/1910.11873
Autor:
Saio, H., Ekström, S., Mowlavi, N., Georgy, C., Saesen, S., Eggenberger, P., Semaan, T., Salmon, S. J. A. J.
We study the pulsational properties of rapidly rotating main-sequence B-type stars using linear non-adiabatic analysis of non-radial low-frequency modes taking into account the effect of rotation. We compare the properties of prograde sectoral $g$ an
Externí odkaz:
http://arxiv.org/abs/1702.02306
Autor:
Mowlavi, N., Saesen, S., Semaan, T., Eggenberger, P., Barblan, F., Eyer, L., Ekström, S., Georgy, C.
Publikováno v:
A&A 595, L1 (2016)
$Context.$ Pulsating stars are windows to the physics of stars enabling us to see glimpses of their interior. Not all stars pulsate, however. On the main sequence, pulsating stars form an almost continuous sequence in brightness, except for a magnitu
Externí odkaz:
http://arxiv.org/abs/1610.01077
Autor:
Anderson, R. I., Mérand, A., Kervella, P., Breitfelder, J., LeBouquin, J. -B., Eyer, L., Gallenne, A., Palaversa, L., Semaan, T., Saesen, S., Mowlavi, N.
Baade-Wesselink-type (BW) techniques enable geometric distance measurements of Cepheid variable stars in the Galaxy and the Magellanic clouds. The leading uncertainties involved concern projection factors required to translate observed radial velocit
Externí odkaz:
http://arxiv.org/abs/1511.07089
Autor:
Hubrig, S., Kholtygin, A. F., Schöller, M., Anderson, R. I., Saesen, S., Gonzalez, J. F., Ilyin, I., Briquet, M.
Our recent search for the presence of a magnetic field in the bright early A-type supergiant HD92207 using FORS2 in spectropolarimetric mode revealed the presence of a longitudinal magnetic field of the order of a few hundred Gauss. However, the defi
Externí odkaz:
http://arxiv.org/abs/1502.00227
Autor:
Beck, P. G., Kambe, E., Hillen, M., Corsaro, E., Van Winckel, H., Moravveji, E., De Ridder, J., Bloemen, S., Saesen, S., Mathias, P., Degroote, P., Kallinger, T., Verhoelst, T., Ando, H., Carrier, F., Acke, B., Oreiro, R., Miglio, A., Eggenberger, P., Sato, B., Zwintz, K., Pápics, P. I., Marcos-Arenal, P., Fuentes, S. A. Sans, Schmid, V. S., Waelkens, C., Østensen, R., Matthews, J. M., Yoshida, M., Izumiura, H., Koyano, H., Nagayama, S., Shimizu, Y., Okada, N., Okita, K., Sakamoto, A., Yamamuro, T., Aerts, C.
Red giants are evolved stars which exhibit solar-like oscillations. Although a multitude of stars have been observed with space telescopes, only a handful of red-giant stars were targets of spectroscopic asteroseismic observing projects. We search fo
Externí odkaz:
http://arxiv.org/abs/1407.6352
Autor:
Sódor, Á., De Cat, P., Wright, D. J., Neiner, C., Briquet, M., Lampens, P., Dukes, R. J., Henry, G. W., Williamson, M. H., Brunsden, E., Pollard, K. R., Cottrell, P. L., Maisonneuve, F., Kilmartin, P. M., Matthews, J., Kallinger, T., Beck, P. G., Kambe, E., Engelbrecht, C. A., Czanik, R. J., Yang, S., Hashimoto, O., Honda, S., Fu, J. N., Castanheira, B., Lehmann, H., Bognár, Zs., Behara, N., Scaringi, S., Van Winckel, H., Menu, J., Lobel, A., Mathias, P., Saesen, S., Vučković, M., collaboration, the MiMeS
We carried out an extensive observational study of the Slowly Pulsating B (SPB) star, HD 25558. The ~2000 spectra obtained at different observatories, the ground-based and MOST satellite light curves revealed that this object is a double-lined spectr
Externí odkaz:
http://arxiv.org/abs/1312.6307
We investigate possible interpretations of the new periodic B- and A-type variable stars discovered in NGC 3766. They lie in the region of the Hertzsprung-Russell diagram between slowly pulsating B and delta Sct stars, a region where no pulsation is
Externí odkaz:
http://arxiv.org/abs/1310.6488
Recent progress in the seismic interpretation of field {\beta} Cep stars has resulted in improvements of the physical description in the stellar structure and evolution model computations of massive stars. Further asteroseismic constraints can be obt
Externí odkaz:
http://arxiv.org/abs/1310.0294
Recent progress in the seismic interpretation of field beta Cep stars has resulted in improvements of the physics in the stellar structure and evolution models of massive stars. Further asteroseismic constraints can be obtained from studying ensemble
Externí odkaz:
http://arxiv.org/abs/1307.4256