Zobrazeno 1 - 10
of 115
pro vyhledávání: '"Cardini, D"'
Autor:
Di Mauro, M . P., Ventura, R., Cardini, D., Stello, D., Christensen-Dalsgaard, J., Dziembowski, W. A., Paterno', L., Beck, P. G., Bloemen, S., Davies, G. R., De Smedt, K., Elsworth, Y., Garcia, R. A., Hekker, S., Mosser, B., Tkachenko, A.
In this paper we study the dynamics of the stellar interior of the early red-giant star KIC 4448777 by asteroseismic inversion of 14 splittings of the dipole mixed modes obtained from {\it Kepler} observations. In order to overcome the complexity of
Externí odkaz:
http://arxiv.org/abs/1511.06160
Autor:
Di Mauro, M. P., Cardini, D., Ventura, R., Stello, D., Beck, P. G., Davies, G., Elsworth, Y., Garcıa, R. A., Hekker, S., Mosser, B., Christensen-Dalsgaard, J., Bloemen, S., Catanzaro, G., De Smedt, K., Tkachenko, A.
We present an asteroseismic approach to study the dynamics of the stellar interior in red-giant stars by asteroseismic inversion of the splittings induced by the stellar rotation on the oscillation frequencies. We show preliminary results obtained fo
Externí odkaz:
http://arxiv.org/abs/1212.4758
Autor:
Di Mauro, M. P., Cardini, D., Catanzaro, G., Ventura, R., Barban, C., Bedding, T. R., Christensen-Dalsgaard, J., De Ridder, J., Hekker, S., Huber, D., Kallinger, T., Miglio, A., Montalban, J., Mosser, B., Stello, D., Uytterhoeven, K., Kinemuchi, K., Kjeldsen, H., Mullally, F., Still, M.
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 frequency sepa
Externí odkaz:
http://arxiv.org/abs/1105.1076
Autor:
Maceroni, C., Cardini, D., Damiani, C., Gandolfi, D., Debosscher, J., Hatzes, A., Guenther, E. W., Aerts, C.
We present the preliminary results of the study of an interesting target in the first CoRoT exo-planet field (IRa1): CoRoT 102918586. Its light curve presents additional variability on the top of the eclipses, whose pattern suggests multi- frequency
Externí odkaz:
http://arxiv.org/abs/1004.1525
Autor:
Hekker, S., Debosscher, J., Huber, D., Hidas, M. G., De Ridder, J., Aerts, C., Stello, D., Bedding, T. R., Gilliland, R. L., Christensen-Dalsgaard, J., Brown, T. M., Kjeldsen, H., Borucki, W. J., Koch, D., Jenkins, J. M., Van Winckel, H., Beck, P. G., Blomme, J., Southworth, J., Pigulski, A., Chaplin, W. J., Elsworth, Y. P., Stevens, I. R., Dreizler, S., Kurtz, D. W., Maceroni, C., Cardini, D., Derekas, A., Suran, M. D.
Oscillating stars in binary systems are among the most interesting stellar laboratories, as these can provide information on the stellar parameters and stellar internal structures. Here we present a red giant with solar-like oscillations in an eclips
Externí odkaz:
http://arxiv.org/abs/1001.0399
Publikováno v:
Mon.Not.Roy.Astron.Soc.363:847-856,2005
We explore the possible evolutionary status of the primary component of the binary 85 Pegasi, listed as a target for asteroseismic observations by the MOST satellite. In spite of the assessed `subdwarf' status, and of the accurate distance determinat
Externí odkaz:
http://arxiv.org/abs/astro-ph/0508259
Autor:
Cardini, D.
Publikováno v:
Astron.Astrophys. 430 (2005) 303
The Mg II k emission line is a good indicator of the level of chromospheric activity in late-type stars. We investigate the dependence of this activity indicator on fundamental stellar parameters. To this purpose we use IUE observations of the Mg II
Externí odkaz:
http://arxiv.org/abs/astro-ph/0409683
Publikováno v:
Astron.Astrophys.408:337-345,2003
We carry out an analysis of the Mg II 2796.34 A emission line in RS CVn stars and make a comparison with the normal stars studied in a previous paper (Paper I). The sample of RS CVn stars consists of 34 objects with known HIPPARCOS parallaxes and obs
Externí odkaz:
http://arxiv.org/abs/astro-ph/0307296
Publikováno v:
Astron.Astrophys.374:1085-1091,2001
An investigation is carried out on the Wilson-Bappu effect in the Mg II k line at 2796.34 A. The work is based on a selection of 230 stars observed by both the IUE and HIPPARCOS satellites, covering a wide range of spectral type and absolute visual m
Externí odkaz:
http://arxiv.org/abs/astro-ph/0106070
The large sample of main sequence stars with Hipparcos parallaxes and estimates of the radial velocity has been used to study the relations among kinematics, age and heavy element content for the solar neighbourhood. The samples with V> -30 km $\rm s
Externí odkaz:
http://arxiv.org/abs/astro-ph/9910087