Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Fujimoto, M. Y."'
Carbon-enhanced metal-poor (CEMP) stars in the Galactic halo have a wide range of neutron-capture element abundance patterns. To identify their origin, we investigated three modes of $s$-process nucleosynthesis that have been proposed to operate in e
Externí odkaz:
http://arxiv.org/abs/2310.14598
Autor:
Kanagawa, Kazuhiro D., Fujimoto, M. Y.
In the core accretion model for the formation of gas giant planets, runaway gas accretion onto a core is the primary requisite, triggered when the core mass reaches a critical value. The recently revealed wide diversity of the extrasolar giant planet
Externí odkaz:
http://arxiv.org/abs/1301.1727
Publikováno v:
Prog. Theor. Phys. 126 (2011), 1177-1186
The effects of a new triple-$\alpha$ reaction rate (OKK rate) on the helium flash of a helium accreting neutron star in a binary system have been investigated. Since the ignition points determine the properties of a thermonuclear flash of type I X-ra
Externí odkaz:
http://arxiv.org/abs/1105.5484
Autor:
Frebel, A., Aoki, W., Christlieb, N., Ando, H., Asplund, M., Barklem, P. S., Beers, T. C., Eriksson, K., Fechner, C., Fujimoto, M. Y., Honda, S., Kajino, T., Minezaki, T., Nomoto, K., Norris, J. E., Ryan, S. G., Takada-Hidai, M., Tsangarides, S., Yoshii, Y.
We describe the discovery of HE 1327-2326, a dwarf or subgiant with [Fe/H]}=-5.4. The star was found in a sample of bright metal-poor stars selected from the Hamburg/ESO survey. Its abundance pattern is characterized by very high C and N abundances.
Externí odkaz:
http://arxiv.org/abs/astro-ph/0509658
Autor:
Aoki, W., Frebel, A., Christlieb, N., Norris, J. E., Beers, T. C., Minezaki, T., Barklem, P. S., Honda, S., Takada-Hidai, M., Asplund, M., Ryan, S. G., Tsangarides, S., Eriksson, K., Steinhauer, A., Deliyannis, C. P., Nomoto, K., Fujimoto, M. Y., Ando, H., Yoshii, Y., Kajino, T.
Publikováno v:
Astrophys.J.639:897-917,2006
We present the elemental abundances of HE1327-2326, the most iron-deficient star known, determined from a comprehensive analysis of spectra obtained with the Subaru Telescope High Dispersion Spectrograph.
Comment: 53 pages, 14 figures, 10 tables
Comment: 53 pages, 14 figures, 10 tables
Externí odkaz:
http://arxiv.org/abs/astro-ph/0509206
The evolution of a zero metallicity 9 M_s star is computed, analyzed and compared with that of a solar metallicity star of identical ZAMS mass. Our computations range from the main sequence until the formation of a massive oxygen-neon white dwarf. Sp
Externí odkaz:
http://arxiv.org/abs/astro-ph/0412464
Publikováno v:
Astrophys.J. 611 (2004) 476-493
We discuss the origin of HE0107-5240 which is the most metal poor star yet observed ([Fe/H] = -5.3). Its discovery has an important bearing on the question of the observability of "first generation" stars. In common with other metal-poor stars (-4 <
Externí odkaz:
http://arxiv.org/abs/astro-ph/0402589
Autor:
Aoki, W., Frebel, A., Christlieb, N., Norris, J. E., Beers, T. C., Minezaki, T., Barklem, P. S., Honda, S., Takada-Hidai, M., Asplund, M., Ryan, S. G., Tsangarides, S., Eriksson, K., Steinhauer, A., Deliyannis, C. P., Nomoto, K., Fujimoto, M. Y., Ando, H., Yoshii, Y., Kajino, T.
We present the elemental abundances of HE1327-2326, the most iron-deficient star known, determined from a comprehensive analysis of spectra obtained with the Subaru Telescope High Dispersion Spectrograph.
53 pages, 14 figures, 10 tables, to appe
53 pages, 14 figures, 10 tables, to appe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84d8c2dd3cad3ffcf40c680138df15fc
Akademický článek
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Publikováno v:
AIP Conference Proceedings; 5/21/2008, Vol. 1016 Issue 1, p43-48, 6p, 3 Graphs
