Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Silva, J. V. Sales"'
Autor:
Loaiza-Tacuri, V., Cunha, K., Souto, D., Smith, V. V., Guerço, R., Chiappini, C., Silva, J. V. Sales, Horta, D., Prieto, C. Allende, Beaton, R., Bizyaev, D., Daflon, S., Frinchaboy, P., Hasselquist, S., Hayes, C. R., Holtzman, J. A., Jönsson, H., Majewski, S. R., Mészáros, S., Nidever, D. L., Pinsonneault, M., Zasowski, G.
Previous results in the literature have found the young inner-disk open cluster NGC 6705 to be mildly $\alpha$-enhanced. We examined this possibility via an independent chemical abundance analysis for 11 red-giant members of NGC 6705. The analysis is
Externí odkaz:
http://arxiv.org/abs/2309.10778
Autor:
Silva, J. V. Sales, Cunha, K., Perottoni, H. D., Rocha-Pinto, H. J., Daflon, S., Almeida-Fernandes, F., Souto, Diogo, Majewski, S. R.
The close relationship between the nature of the Triangulum-Andromeda (TriAnd) overdensity and the Galactic disk has become increasingly evident in recent years. However, the chemical pattern of this overdensity (R$_{GC}$ = 20 - 30 kpc) is unique and
Externí odkaz:
http://arxiv.org/abs/2007.15764
Autor:
Silva, J. V. Sales, Perottoni, H. D., Cunha, K., Rocha-Pinto, H. J., Almeida-Fernandes, F., Souto, D., Majewski, S. R.
The Triangulum--Andromeda (TriAnd) overdensity is a distant structure of the Milky Way located in the second Galactic quadrant well below the Galactic plane. Since its discovery, its nature has been under discussion, whether it could be old perturbat
Externí odkaz:
http://arxiv.org/abs/1910.06457
Carbon enhanced metal poor (CEMP) stars are a particular class of low metalicity halo stars whose chemical analysis may provide important constrains to the chemistry evolution of the Galaxy and to the models of mass transfer and evolution of componen
Externí odkaz:
http://arxiv.org/abs/1707.09039
Autor:
de Castro, D. B., Pereira, C. B., Roig, F., Jilinski, E., Drake, N. A., Chavero, C., Silva, J. V. Sales
In this paper we present an homogeneous analysis of photospheric abundances based on high-resolution spectroscopy of a sample of 182 barium stars and candidates. We determined atmospheric parameters, spectroscopic distances, stellar masses, ages, lum
Externí odkaz:
http://arxiv.org/abs/1604.03031
We determined the atmospheric parameters and abundance pattern for a sample of metal-rich barium stars. We used high-resolution optical spectroscopy. Atmospheric parameters and abundances were determined using the local thermodynamic equilibrium atmo
Externí odkaz:
http://arxiv.org/abs/1108.2500
Autor:
Silva, J. V. Sales1 (AUTHOR) joaovictor@on.br, Perottoni, H.2 (AUTHOR) hperottoni@astro.ufrj.br, Cunha, K.1,3 (AUTHOR) kcunha@on.br, Rocha-Pinto, H. J.2 (AUTHOR), Souto, D.1 (AUTHOR) souto@on.br, Almeida-Fernandes, F.2 (AUTHOR)
Publikováno v:
Proceedings of the International Astronomical Union. Aug2018, Vol. 14 Issue S344, p122-124. 3p.
Autor:
Silva, J. V. Sales, Cunha, K., Perottoni, H. D., Rocha-Pinto, H. J., Daflon, S., Almeida-Fernandes, F., Souto, Diogo, Majewski, S. R.
Publikováno v:
Astrophysical Journal; 9/20/2020, Vol. 901 Issue 1, p1-10, 10p