Zobrazeno 1 - 7
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pro vyhledávání: '"Pompeia, Luciana"'
Autor:
Pompéia, Luciana
The chemical compositions of stars from the Asymptotic Giant Branch are still poorly known due to the low temperatures of their atmospheres and therefore the presence of many molecular transitions hampering the analysis of atomic lines. One way to ov
Externí odkaz:
http://arxiv.org/abs/0903.1053
Publikováno v:
Astrophys.J. 592 (2003) 1173-1185
The present sample of nearby bulgelike dwarf stars has kinematics and metallicities characteristic of a probable inner disk or bulge origin. Ages derived by using isochrones give 10-11 Gyr for these stars and metallicities are in the range -0.80< [Fe
Externí odkaz:
http://arxiv.org/abs/astro-ph/0304282
Li abundances are derived for a sample of bulgelike stars with isochronal ages of 10-11 Gyr. These stars have orbits with pericentric distances, Rp, as small as 2-3 kpc and Zmax < 1 kpc. The sample comprises G and K dwarf stars in the metallicity ran
Externí odkaz:
http://arxiv.org/abs/astro-ph/0201472
High resolution \'echelle spectra were obtained with the FEROS spectrograph at the 1.5m ESO telescope for 35 nearby bulge-like stars with metallicities in the range -0.8 $\leq$ [Fe/H] $\leq$ +0.4. Geneva photometry, astrometric data from Hipparcos an
Externí odkaz:
http://arxiv.org/abs/astro-ph/0111224
Publikováno v:
In Nuclear Physics, Section A 2005 758:242-245
Publikováno v:
The Astrophysical Journal; August 2003, Vol. 592 Issue: 2 p1173-1185, 13p
Publikováno v:
The Astrophysical Journal; February 2002, Vol. 566 Issue: 2 p845-856, 12p