Zobrazeno 1 - 10
of 312
pro vyhledávání: '"Houdek, G"'
Autor:
Beck, P. G., Kuschnig, R., Houdek, G., Kallinger, T., Weiss, W. W., Palle, P. L., Grundahl, F., Hatzes, A., Parviainen, H., Prieto, C. Allende, Deeg, H. J., Jiménez, A., Mathur, S., Garcia, R. A., White, T. R., Bedding, T. R., Grossmann, D. H., Janisch, S., Zaqarashvili, T., Hanslmeier, A., Zwintz, K., BRITE, the, teams, SONG
Solar-like oscillations in red-giant stars are now commonly detected in thousands of stars with space telescopes such as the NASA Kepler mission. Parallel radial velocity and photometric measurements would help to better understand the physics govern
Externí odkaz:
http://arxiv.org/abs/2001.04912
Autor:
Antoci, V., Cunha, M. S., Bowman, D. M., Murphy, S. J., Kurtz, D. W., Bedding, T. R., Borre, C. C., Christophe, S., Daszyńska-Daszkiewicz, J., Fox-Machado, L., Hernández, A. García, Ghasemi, H., Handberg, R., Hansen, H., Hasanzadeh, A., Houdek, G., Johnston, C., Justesen, A. B., Alicavus, F. Kahraman, Kotysz, K., Latham, D., Matthews, J. M., Mønster, J., Niemczura, E., Paunzen, E., Arias, J. P. Sánchez, Pigulski, A., Pepper, J., Richey-Yowell, T., Safari, H., Seager, S., Smalley, B., Shutt, T., Sódor, A., Suárez, J. -C., Tkachenko, A., Wu, T., Zwintz, K., Forteza, S. Barceló, Brunsden, E., Bognár, Z., Buzasi, D. L., Chowdhury, S., De Cat, P., Evans, J. A., Guo, Z., Guzik, J. A., Jevtic, N., Lampens, P., Martiz, M. Lares, Lovekin, C., Li, G., Mirouh, G. M., Mkrtichian, D., Monteiro, M. J. P. F. G., Nemec, J. M., Ouazzani, R., Pascual-Granado, J., Reese, D. R., Rieutord, M., Rodon, J. R., Skarka, M., Sowicka, P., Stateva, I., Szabó, R., Weiss, W. W.
We present the first asteroseismic results for $\delta$ Scuti and $\gamma$ Doradus stars observed in Sectors 1 and 2 of the TESS mission. We utilise the 2-min cadence TESS data for a sample of 117 stars to classify their behaviour regarding variabili
Externí odkaz:
http://arxiv.org/abs/1909.12018
Autor:
Houdek, G., Lund, M. N., Trampedach, R., Christensen-Dalsgaard, J., Handberg, R., Appourchaux, T.
Linear damping rates and modal frequency corrections of radial oscillation modes in selected LEGACY main-sequence stars are estimated by means of a nonadiabatic stability analysis. The selected stellar sample covers stars observed by Kepler with a la
Externí odkaz:
http://arxiv.org/abs/1904.13170
First Results From The Hertzsprung Song Telescope: Asteroseismology Of The G5 Subgiant Star {\Mu}Her
Autor:
Grundahl, F., Andersen, M. Fredslund, Christensen-Dalsgaard, J., Antoci, V., Kjeldsen, H., Handberg, R., Houdek, G., Bedding, T. R., Pallé, P. L., Jessen-Hansen, J., Aguirre, V. Silva, White, T. R., Frandsen, S., Albrecht, S., Andersen, M. I., Arentoft, T., Brogaard, K., Chaplin, W. J., Harpsøe, K., Jørgensen, U. G., Karovicova, I., Karoff, C., Rasmussen, P. Kjærgaard, Lund, M. N., Lundkvist, M. Sloth, Skottfelt, J., Sørensen, A. Norup, Tronsgaard, R., Weiss, E.
We report the first asteroseismic results obtained with the Hertzsprung SONG Telescope from an extensive high-precision radial-velocity observing campaign of the subgiant muHerculis. The data set was collected during 215 nights in 2014 and 2015. We d
Externí odkaz:
http://arxiv.org/abs/1701.03365
Autor:
White, T. R., Benomar, O., Aguirre, V. Silva, Ball, W. H., Bedding, T. R., Chaplin, W. J., Christensen-Dalsgaard, J., Garcia, R. A., Gizon, L., Stello, D., Aigrain, S., Antia, H. M., Appourchaux, T., Bazot, M., Campante, T. L., Creevey, O. L., Davies, G. R., Elsworth, Y. P., Gaulme, P., Handberg, R., Hekker, S., Houdek, G., Howe, R., Huber, D., Karoff, C., Marques, J. P., Mathur, S., McQuillan, A., Metcalfe, T. S., Mosser, B., Nielsen, M. B., Régulo, C., Salabert, D., Stahn, T.
Publikováno v:
A&A 601, A82 (2017)
Binary star systems are important for understanding stellar structure and evolution, and are especially useful when oscillations can be detected and analysed with asteroseismology. However, only four systems are known in which solar-like oscillations
Externí odkaz:
http://arxiv.org/abs/1609.09581
Adiabatic oscillation frequencies of stellar models, computed with the standard mixing-length formulation for convection, increasingly deviate with radial order from observations in solar-like stars. Standard solar models overestimate adiabatic frequ
Externí odkaz:
http://arxiv.org/abs/1609.06129
Autor:
Guzik, J. A., Houdek, G., Chaplin, W. J., Smalley, B., Kurtz, D. W., Gilliland, R. L., Mullally, F., Rowe, J. F., Bryson, S. T., Still, M. D., Antoci, V., Appourchaux, T., Basu, S., Bedding, T. R., Benomar, O., Garcia, R. A., Huber, D., Kjeldsen, H., Latham, D. W., Metcalfe, T. S., Pápics, P. I., White, T. R., Aerts, C., Ballot, J., Boyajian, T. S., Briquet, M., Bruntt, H., Buchhave, L. A., Campante, T. L., Catanzaro, G., Christensen-Dalsgaard, J., Davies, G. R., Doğan, G., Dragomir, D., Doyle, A. P., Elsworth, Y., Frasca, A., Gaulme, P., Gruberbauer, M., Handberg, R., Hekker, S., Karoff, C., Lehmann, H., Mathias, P., Mathur, S., Miglio, A., Molenda-Żakowicz, J., Mosser, B., Murphy, S. J., Régulo, C., Ripepi, V., Salabert, D., Sousa, S. G., Stello, D., Uytterhoeven, K.
$\theta$ Cygni is an F3 spectral-type main-sequence star with visual magnitude V=4.48. This star was the brightest star observed by the original Kepler spacecraft mission. Short-cadence (58.8 s) photometric data using a custom aperture were obtained
Externí odkaz:
http://arxiv.org/abs/1607.01035
Autor:
Reese, D. R., Chaplin, W. J., Davies, G. R., Miglio, A., Antia, H. M., Ball, W. H., Basu, S., Buldgen, G., Christensen-Dalsgaard, J., Coelho, H. R., Hekker, S., Houdek, G., Lebreton, Y., Mazumdar, A., Metcalfe, T. S., Aguirre, V. Silva, Stello, D., Verma, K.
Publikováno v:
A&A 592, A14 (2016)
Context: Detailed oscillation spectra comprising individual frequencies for numerous solar-type stars and red giants are or will become available. These data can lead to a precise characterisation of stars. Aims: Our goal is to test and compare diffe
Externí odkaz:
http://arxiv.org/abs/1604.08404
Autor:
Chaplin, W. J., Lund, M. N., Handberg, R., Basu, S., Buchhave, L. A., Campante, T. L., Davies, G. R., Huber, D., Latham, D. W., Latham, C. A., Serenelli, A., Antia, H. M., Appourchaux, T., Ball, W. H., Benomar, O., Casagrande, L., Christensen-Dalsgaard, J., Coelho, H. R., Creevey, O. L., Elsworth, Y., Garc, R. A., Gaulme, P., Hekker, S., Kallinger, T., Karoff, C., Kawaler, S. D., Kjeldsen, H., Lundkvist, M. S., Marcadon, F., Mathur, S., Miglio, A., Mosser, B., R, C., Roxburgh, I. W., Aguirre, V. Silva, Stello, D., Verma, K., White, T. R., Bedding, T. R., Barclay, T., Buzasi, D. L., Deheuvels, S., Gizon, L., Houdek, G., Howell, S. B., Salabert, D., Soderblom, D. R.
We present the first detections by the NASA K2 Mission of oscillations in solar-type stars, using short-cadence data collected during K2 Campaign\,1 (C1). We understand the asteroseismic detection thresholds for C1-like levels of photometric performa
Externí odkaz:
http://arxiv.org/abs/1507.01827
We discuss how recent advances in observations, theory and numerical simulations have allowed the stellar community to progress in its understanding of stellar convection, rotation and magnetism and to assess the degree to which the Sun and other sta
Externí odkaz:
http://arxiv.org/abs/1503.06742