Zobrazeno 1 - 10
of 4 935
pro vyhledávání: '"Takata, M."'
Autor:
Takata, M., Gough, D. O.
Analysis of f-mode frequencies has provided a measure of the radius of the Sun which is lower, by a few hundredths per cent, than the photospheric radius determined by direct optical measurement. Part of this difference can be understood by recognizi
Externí odkaz:
http://arxiv.org/abs/2310.11299
Autor:
Pinçon, C., Takata, M.
Publikováno v:
A&A 661, A139 (2022)
Asteroseismology has proven to be a powerful method for probing stellar interiors. Analytical descriptions of the global oscillation modes, in combination with pulsation codes, have provided valuable help in processing and interpreting the large amou
Externí odkaz:
http://arxiv.org/abs/2203.03402
Autor:
Ouazzani, R-M., Lignières, F., Dupret, M-A., Salmon, S. J. A. J., Ballot, J., Christophe, S., Takata, M.
Publikováno v:
A&A 640, A49 (2020)
Gamma Doradus stars present an incredibly rich pulsation spectra, with gravito-inertial modes, in some cases supplemented with delta Scuti-like pressure modes and in numerous cases with Rossby modes. The present paper aims at showing that, in additio
Externí odkaz:
http://arxiv.org/abs/2006.09404
Publikováno v:
A&A 626, A125 (2019)
Observations of mixed modes in evolved low-mass stars enable us to probe the properties of not only the outer envelope of these stars, but also their deep layers. Among the seismic parameters associated with mixed modes, the gravity offset, denoted w
Externí odkaz:
http://arxiv.org/abs/1905.05691
Autor:
Benomar, O., Bazot, M., Nielsen, M. B., Gizon, L., Sekii, T., Takata, M., Hotta, H., Hanasoge, S., Sreenivasan, K. R., Christensen-Dalsgaard, J.
Publikováno v:
Science, Vol. 361, Issue 6408, pp. 1231-1234, 21 Sep 2018
The differentially rotating outer layers of stars are thought to play a role in driving their magnetic activity, but the underlying mechanisms that generate and sustain differential rotation are poorly understood. We report the measurement of latitud
Externí odkaz:
http://arxiv.org/abs/1809.07938
Autor:
Saio, H., Bedding, T. R., Kurtz, D. W., Murphy, S. J., Antoci, V. L., Shibahashi, H., Li, Gang, Takata, M.
The Fourier spectrum of the $\gamma$-Dor variable KIC 5608334 shows remarkable frequency groups at $\sim$3, $\sim$6, $\sim$9, and 11--12\,d$^{-1}$. We explain the four frequency groups as prograde sectoral g modes in a rapidly rotating star. Frequenc
Externí odkaz:
http://arxiv.org/abs/1803.08677
Autor:
Kriener, M., Nakajima, T., Kaneko, Y., Kikkawa, A., Hashizume, D., Kato, K., Takata, M., Arima, T., Tokura, Y., Taguchi, Y.
Publikováno v:
Phys. Rev. B 95, 224418 (2017)
The correlation between magnetic properties and microscopic structural aspects in the diluted magnetic semiconductor Ge$_{1-x}$Mn$_{x}$Te is investigated by x-ray diffraction and magnetization as a function of the Mn concentration $x$. The occurrence
Externí odkaz:
http://arxiv.org/abs/1706.05775
The power of asteroseismology relies on the capability of global oscillations to infer the stellar structure. For evolved stars, we benefit from unique information directly carried out by mixed modes that probe their radiative cores. This third artic
Externí odkaz:
http://arxiv.org/abs/1612.08453
Autor:
Mosser, B., Belkacem, K., Pincon, C., Takata, M., Vrard, M., Barban, C., Goupil, M-J., Kallinger, T., Samadi, R.
Publikováno v:
A&A 598, A62 (2017)
Seismic observations have shown that a number of evolved stars exhibit low-amplitude dipole modes, which are referred to as depressed modes. Recently, these low amplitudes have been attributed to the presence of a strong magnetic field in the stellar
Externí odkaz:
http://arxiv.org/abs/1610.03872
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.