Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Galarza, J. Yana"'
Autor:
Miquelarena, P., Saffe, C., Flores, M., Petrucci, R., Galarza, J. Yana, Alacoria, J., Arancibia, M. Jaque, Jofré, E., Armijo, K. Montenegro, Gunella, F.
Aims.We conduct a high-precision differential abundance analysis of the remarkable binary system HD 240429/30 (Krios and Kronos, respectively), whose difference in metallicity is one of the highest detected in systems with similar components to date
Externí odkaz:
http://arxiv.org/abs/2406.06705
Autor:
Saffe, C., Miquelarena, P., Alacoria, J., Martioli, E., Flores, M., Arancibia, M. Jaque, Angeloni, R., Jofre, E., Galarza, J. Yana, Gonzalez, E., Collado, A.
Aims. We explore different scenarios to explain the chemical difference found in the remarkable giant-giant binary system HD 138202 + CD-30 12303. For the first time, we suggest how to distinguish these scenarios by taking advantage of the extensive
Externí odkaz:
http://arxiv.org/abs/2402.09278
Binary stars are supposed to be chemically homogeneous, as they are born from the same molecular cloud. However, high precision chemical abundances show that some binary systems display chemical differences between the components, which could be due
Externí odkaz:
http://arxiv.org/abs/2109.00679
Autor:
Flores, M., Arancibia, M. Jaque, Bustos, R. V. Ibañez, Buccino, A. P., Galarza, J. Yana, Nuñez, N. E., Miquelarena, P., Alacoria, J., Saffe, C., Mauas, Pablo J. D.
Publikováno v:
A&A 645, L6 (2021)
Context. It is well known that from 1645 to 1715 solar activity was notably low and the number of sunspots was extremely reduced. This epoch is known as the Maunder Minimum (MM). The study of stars in prolonged activity minima like the MM could help
Externí odkaz:
http://arxiv.org/abs/2012.08983
Autor:
Carlos, M., Melendez, J., Spina, L., Santos, L. A. dos, Bedell, M., Ramirez, I., Asplund, M., Bean, J. L., Yong, D., Galarza, J. Yana, Alves-Brito, A.
The present work aims to examine in detail the depletion of lithium in solar twins to better constrain stellar evolution models and investigate its possible connection with exoplanets. We employ spectral synthesis in the region of the asymmetric 6707
Externí odkaz:
http://arxiv.org/abs/1903.02735
Akademický článek
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