Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Trampedach, R."'
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
Autor:
Lynas-Gray, A. E., Basu, S., Bautista, M. A., Colgan, J., Mendoza, C., Tennyson, J., Trampedach, R., Turck-Chièze, S.
Availability of reliable atomic and molecular opacity tables is essential in a wide variety of astronomical modeling: the solar and stellar interiors, stellar and planetary atmospheres, stellar evolution, pulsating stars, and protoplanetary disks, to
Externí odkaz:
http://arxiv.org/abs/1804.06804
Autor:
Corsaro, E., Mathur, S., García, R. A., Gaulme, P., Pinsonneault, M., Stassun, K., Stello, D., Tayar, J., Trampedach, R., Jiang, C., Nitschelm, C., Salabert, D.
Publikováno v:
A&A 605, A3 (2017)
The effect of metallicity on the granulation activity in stars is still poorly understood. Available spectroscopic parameters from the updated APOGEE-\textit{Kepler} catalog, coupled with high-precision photometric observations from NASA's \textit{Ke
Externí odkaz:
http://arxiv.org/abs/1707.07474
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:
Antoci, V., Cunha, M., Houdek, G., Kjeldsen, H., Trampedach, R., Handler, G., Lueftinger, T., Arentoft, T., Murphy, S.
HD 187547 was the first candidate that led to the suggestion that solar-like oscillations are present in delta Scuti stars. Longer observations, however, show that the modes interpreted as solar-like oscillations have either very long mode lifetimes,
Externí odkaz:
http://arxiv.org/abs/1411.0931
Autor:
Metcalfe, T. S., Creevey, O. L., Dogan, G., Mathur, S., Xu, H., Bedding, T. R., Chaplin, W. J., Christensen-Dalsgaard, J., Karoff, C., Trampedach, R., Benomar, O., Brown, B. P., Buzasi, D. L., Campante, T. L., Celik, Z., Cunha, M. S., Davies, G. R., Deheuvels, S., Derekas, A., Di Mauro, M. P., Garcia, R. A., Guzik, J. A., Howe, R., MacGregor, K. B., Mazumdar, A., Montalban, J., Monteiro, M. J. P. F. G., Salabert, D., Serenelli, A., Stello, D., Steslicki, M., Suran, M. D., Yildiz, M., Aksoy, C., Elsworth, Y., Gruberbauer, M., Guenther, D. B., Lebreton, Y., Molaverdikhani, K., Pricopi, D., Simoniello, R., White, T. R.
Publikováno v:
Astrophys.J.Supp.214:27,2014
Recently the number of main-sequence and subgiant stars exhibiting solar-like oscillations that are resolved into individual mode frequencies has increased dramatically. While only a few such data sets were available for detailed modeling just a deca
Externí odkaz:
http://arxiv.org/abs/1402.3614
Autor:
Magic, Z., Collet, R., Asplund, M., Trampedach, R., Hayek, W., Chiavassa, A., Stein, R. F., Nordlund, Å.
We present the Stagger-grid, a comprehensive grid of time-dependent, 3D hydrodynamic model atmospheres for late-type stars with realistic treatment of radiative transfer, covering a wide range in stellar parameters. This grid of 3D models is intended
Externí odkaz:
http://arxiv.org/abs/1302.2621
Autor:
Mathur, S., Metcalfe, T. S., Woitaszek, M., Bruntt, H., Verner, G. A., Christensen-Dalsgaard, J., Creevey, O. L., Dogan, G., Basu, S., Karoff, C., Stello, D., Appourchaux, T., Campante, T. L., Chaplin, W. J., Garcia, R. A., Bedding, T. R., Benomar, O., Bonanno, A., Deheuvels, S., Elsworth, Y., Gaulme, P., Guzik, J. A., Handberg, R., Hekker, S., Herzberg, W., Monteiro, M. J. P. F. G., Piau, L., Quirion, P. -O., Regulo, C., Roth, M., Salabert, D., Serenelli, A., Thompson, M. J., Trampedach, R., White, T. R., Ballot, J., Brandao, I. M., Molenda-Zakowicz, J., Kjeldsen, H., Twicken, J. D., Uddin, K., Wohler, B.
Asteroseismology with the Kepler space telescope is providing not only an improved characterization of exoplanets and their host stars, but also a new window on stellar structure and evolution for the large sample of solar-type stars in the field. We
Externí odkaz:
http://arxiv.org/abs/1202.2844
Autor:
Mathur, S., Hekker, S., Trampedach, R., Ballot, J., Kallinger, T., Buzasi, D., Garcia, R. A., Huber, D., Jimenez, A., Mosser, B., Bedding, T. R., Elsworth, Y., Regulo, C., Stello, D., Chaplin, W. J., De Ridder, J., Hale, S. J., Kinemuchi, K., Kjeldsen, H., Mullaly, F., Thompson, S. E.
More than 1000 red giants have been observed by NASA/Kepler mission during a nearly continuous period of ~ 13 months. The resulting high-frequency resolution (< 0.03 muHz) allows us to study the granulation parameters of these stars. The granulation
Externí odkaz:
http://arxiv.org/abs/1110.0117
Autor:
Mathur, S., Hekker, S., Trampedach, R., Ballot, J., Kallinger, T., Buzasi, D., Garcia, R. A., Huber, D., Jimenez, A., Mosser, B., Bedding, T. R., Elsworth, Y., Regulo, C., Stello, D., Chaplin, W. J., De Ridder, J., Hale, S. J., Kinemuchi, K., Kjeldsen, H., Mullally, F., Thompson, S. E.
The granulation pattern that we observe on the surface of the Sun is due to hot plasma from the interior rising to the photosphere where it cools down, and descends back into the interior at the edges of granules. This is the visible manifestation of
Externí odkaz:
http://arxiv.org/abs/1109.1194