Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Sanderfer, D. T."'
Measurement of acoustic glitches in solar-type stars from oscillation frequencies observed by Kepler
Autor:
Mazumdar, A., Monteiro, M. J. P. F. G., Ballot, J., Antia, H. M., Basu, S., Houdek, G., Mathur, S., Cunha, M. S., Aguirre, V. Silva, Garcia, R. A., Salabert, D., Verner, G. A., Christensen-Dalsgaard, J., Metcalfe, T. S., Sanderfer, D. T., Seader, S. E., Smith, J. C., Chaplin, W. J.
For the very best and brightest asteroseismic solar-type targets observed by Kepler, the frequency precision is sufficient to determine the acoustic depths of the surface convective layer and the helium ionization zone. Such sharp features inside the
Externí odkaz:
http://arxiv.org/abs/1312.4907
Autor:
Telting, J. H., Østensen, R. H., Baran, A. S., Bloemen, S., Reed, M. D., Oreiro, R., Farris, L., Ottosen, T. A., Aerts, C., Kawaler, S. D., Heber, U., Prins, S., Green, E. M., Kalomeni, B., O'Toole, S. J., Mullally, F., Sanderfer, D. T., Smith, J. C., Kjeldsen, H.
The recently discovered subdwarf B (sdB) pulsator KIC11558725 features a rich g-mode frequency spectrum, with a few low-amplitude p-modes at short periods, and is a promising target for a seismic study aiming to constrain the internal structure of th
Externí odkaz:
http://arxiv.org/abs/1206.3872
Autor:
Silvotti, R., Østensen, R. H., Bloemen, S., Telting, J. H., Heber, U., Oreiro, R., Reed, M. D., Farris, L. E., O'Toole, S. J., Lanteri, L., Degroote, P., Hu, H., Baran, A. S., Hermes, J. J., Althaus, L. G., Marsh, T. R., Charpinet, S., Li, J., Morris, R. L., Sanderfer, D. T.
We have used 605 days of photometric data from the Kepler spacecraft to study KIC 6614501, a close binary system with an orbital period of 0.15749747(25) days (3.779939 hours), that consists of a low-mass subdwarf B (sdB) star and a white dwarf. As s
Externí odkaz:
http://arxiv.org/abs/1205.2457
Autor:
Tkachenko, A., Aerts, C., Pavlovski, K., Southworth, J., Degroote, P., Debosscher, J., Still, M., Bryson, S., Molenberghs, G., Bloemen, S., de Vries, B. L., Hrudkova, M., Lombaert, R., Neyskens, P., Papics, P. I., Raskin, G., Van Winckel, H., Morris, R. L., Sanderfer, D. T., Seader, S. E.
We report the discovery of low-amplitude gravity-mode oscillations in the massive binary star V380 Cyg, from 180 d of Kepler custom-aperture space photometry and 5 months of high-resolution high signal-to-noise spectroscopy. The new data are of unpre
Externí odkaz:
http://arxiv.org/abs/1205.0554
Autor:
Bruntt, H., Basu, S., Smalley, B., Chaplin, W. J., Verner, G. A., Bedding, T. R., Catala, C., Gazzano, J. -C., Molenda-Zakowicz, J., Thygesen, A. O., Uytterhoeven, K., Hekker, S., Huber, D., Karoff, C., Mathur, S., Mosser, B., Appourchaux, T., Campante, T. L., Elsworth, Y., Garcia, R. A., Handberg, R., Metcalfe, T. S., Quirion, P. -O., Regulo, C., Roxburgh, I. W., Stello, D., Christensen-Dalsgaard, J., Kawaler, S. D., Kjeldsen, H., Morris, R. L., Quintana, E. V., Sanderfer, D. T.
We present a detailed spectroscopic study of 93 solar-type stars that are targets of the NASA/Kepler mission and provide detailed chemical composition of each target. We find that the overall metallicity is well-represented by Fe lines. Relative abun
Externí odkaz:
http://arxiv.org/abs/1203.0611
Autor:
Mathur, S., Campante, T. L., Handberg, R., Garcia, R. A., Appourchaux, T., Bedding, T. R., Mosser, B., Chaplin, W. J., Ballot, J., Benomar, O., Bonanno, A., Corsaro, E., Gaulme, P., Hekker, S., Regulo, C., Salabert, D., Verner, G., White, T. R., Brandao, I. M., Creevey, O. L., Dogan, G., Bazot, M., Cunha, M. S., Elsworth, Y., Huber, D., Hale, S. J., Houdek, G., Karoff, C., Lundkvist, M., Metcalfe, T. S., Molenda-Zakowicz, J., Monteiro, M. J. P. F. G., Thompson, M. J., Stello, D., Christensen-Dalsgaard, J., Gilliland, R. L., Kawaler, S. D., Kjeldsen, H., Clarke, B. D., Girouard, F. R., Hall, J. R., Quintana, E. V., Sanderfer, D. T., Seader, S. E.
Having started science operations in May 2009, the Kepler photometer has been able to provide exquisite data of solar-like stars. Five out of the 42 stars observed continuously during the survey phase show evidence of oscillations, even though they a
Externí odkaz:
http://arxiv.org/abs/1110.0135
Autor:
Huber, D., Bedding, T. R., Stello, D., Hekker, S., Mathur, S., Mosser, B., Verner, G. A., Bonanno, A., Buzasi, D. L., Campante, T. L., Elsworth, Y. P., Hale, S. J., Kallinger, T., Aguirre, V. Silva, Chaplin, W. J., De Ridder, J., Garcia, R. A., Appourchaux, T., Frandsen, S., Houdek, G., Molenda-Zakowicz, J., Monteiro, M. J. P. F. G., Christensen-Dalsgaard, J., Gilliland, R. L., Kawaler, S. D., Kjeldsen, H., Broomhall, A. M., Corsaro, E., Salabert, D., Sanderfer, D. T., Seader, S. E., Smith, J. C.
We have analyzed solar-like oscillations in ~1700 stars observed by the Kepler Mission, spanning from the main-sequence to the red clump. Using evolutionary models, we test asteroseismic scaling relations for the frequency of maximum power (nu_max),
Externí odkaz:
http://arxiv.org/abs/1109.3460
Autor:
Steffen, J. H., Quinn, S. N., Borucki, W. J., Brugamyer, E., Bryson, S. T., Buchhave, L. A., Cochran, W. D., Endl, M., Fabrycky, D. C., Ford, E. B., Holman, M. J., Jenkins, J., Koch, D., Latham, D. W., MacQueen, P., Mullally, F., Prsa, A., Ragozzine, D., Rowe, J. F., Sanderfer, D. T., Seader, S. E., Short, D., Shporer, A., Thompson, S. E., Torres, G., Twicken, J. D., Welsh, W. F., Windmiller, G.
We present a hierarchical triple star system (KIC 9140402) where a low mass eclipsing binary orbits a more massive third star. The orbital period of the binary (4.98829 Days) is determined by the eclipse times seen in photometry from NASA's Kepler sp
Externí odkaz:
http://arxiv.org/abs/1106.4530
Autor:
Mathur, S., Handberg, R., Campante, T. L., Garcia, R. A., Appourchaux, T., Bedding, T. R., Mosser, B., Chaplin, W. J., Ballot, J., Benomar, O., Bonanno, A., Corsaro, E., Gaulme, P., Hekker, S., Regulo, C., Salabert, D., Verner, G., White, T. R., Brandao, I. M., Creevey, O. L., Dogan, G., Elsworth, Y., Huber, D., Hale, S. J., Houdek, G., Karoff, C., Metcalfe, T. S., Molenda-Zakowicz, J., Monteiro, M. J. P. F. G., Thompson, M. J., Christensen-Dalsgaard, J., Gilliland, R. L., Kawaler, S. D., Kjeldsen, H., Quintana, E. V., Sanderfer, D. T., Seader, S. E.
We analyze the photometric short-cadence data obtained with the Kepler Mission during the first eight months of observations of two solar-type stars of spectral types G and F: KIC 11395018 and KIC 11234888 respectively, the latter having a lower sign
Externí odkaz:
http://arxiv.org/abs/1103.4085
Autor:
Balona, L. A., Pigulski, A., De Cat, P., Handler, G., Gutierrez-Soto, J, Engelbrecht, C. A., Frescura, F., Briquet, M., Cuypers, J., Daszynska-Daszkiewicz, J., Degroote, P., Dukes, R. J., Garcia, R. A., Green, E. M., Heber, U., Kawaler, S. D., Ostensen, R., Pricopi, D., Roxburgh, I., Salmon, S., Smith, M. A., Suarez, J. C., Suran, M., Szabo, R., Uytterhoeven, K., Christensen-Dalsgaard, Kjeldsen, H., Caldwell, D. A., Girouard, F. R., Sanderfer, D. T.
The analysis of the light curves of 48 B-type stars observed by Kepler is presented. Among these are 15 pulsating stars, all of which show low frequencies characteristic of SPB stars. Seven of these stars also show a few weak, isolated high frequenci
Externí odkaz:
http://arxiv.org/abs/1103.0644