Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Chavero C"'
Autor:
Saito, R. K., Hempel, M., Alonso-García, J., Lucas, P. W., Minniti, D., Alonso, S., Baravalle, L., Borissova, J., Caceres, C., Chené, A. N., Cross, N. J. G., Duplancic, F., Garro, E. R., Gómez, M., Ivanov, V. D., Kurtev, R., Luna, A., Majaess, D., Navarro, M. G., Pullen, J. B., Rejkuba, M., Sanders, J. L., Smith, L. C., Albino, P. H. C., Alonso, M. V., Amôres, E. B., Angeloni, R., Arias, J. I., Arnaboldi, M., Barbuy, B., Bayo, A., Beamin, J. C., Bedin, L. R., Bellini, A., Benjamin, R. A., Bica, E., Bonatto, C. J., Botan, E., Braga, V. F., Brown, D. A., Cabral, J. B., Camargo, D., Garatti, A. Caratti o, Carballo-Bello, J. A., Catelan, M., Chavero, C., Chijani, M. A., Clariá, J. J., Coldwell, G. V., Peña, C. Contreras, Ramos, R. Contreras, Corral-Santana, J. M., Cortés, C. C., Cortés-Contreras, M., Cruz, P., Daza-Perilla, I. V., Debattista, V. P., Dias, B., Donoso, L., D'Souza, R., Emerson, J. P., Federle, S., Fermiano, V., Fernandez, J., Fernández-Trincado, J. G., Ferreira, T., Lopes, C. E. Ferreira, Firpo, V., Flores-Quintana, C., Fraga, L., Froebrich, D., Galdeano, D., Gavignaud, I., Geisler, D., Gerhard, O. E., Gieren, W., Gonzalez, O. A., Gramajo, L. V., Gran, F., Granitto, P. M., Griggio, M., Guo, Z., Gurovich, S., Hilker, M., Jones, H. R. A., Kammers, R., Kuhn, M. A., Kumar, M. S . N., Kundu, R., Lares, M., Libralato, M., Lima, E., Maccarone, T. J., Cortés, P. Marchant, Martin, E. L., Masetti, N., Matsunaga, N., Mauro, F., McDonald, I., Mejías, A., Mesa, V., Milla-Castro, F. P., Minniti, J. H., Bidin, C. Moni, Montenegro, K., Morris, C., Motta, V., Navarete, F., Molina, C. Navarro, Nikzat, F., Castellón, J. L. Nilo, Obasi, C., Ortigoza-Urdaneta, M., Palma, T., Parisi, C., Ramírez, K. Pena, Pereyra, L., Perez, N., Petralia, I., Pichel, A., Pignata, G., Alegría, S. Ramírez, Rojas, A. F., Rojas, D., Roman-Lopes, A., Rovero, A. C., Saroon, S., Schmidt, E. O., Schröder, A. C., Schultheis, M., Sgró, M. A., Solano, E., Soto, M., Stecklum, B., Steeghs, D., Tamura, M., Tissera, P., Valcarce, A. A. R., Valotto, C. A., Vasquez, S., Villalon, C., Villanova, S., Cádiz, F. Vivanco, Bacigalupo, R. Zelada, Zijlstra, A., Zoccali, M.
Publikováno v:
A&A 689, A148 (2024)
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from $2009-2015$. Upon its conclusion, the complementary VVV eXtended (VVVX) survey has expanded both the temp
Externí odkaz:
http://arxiv.org/abs/2406.16646
Autor:
de Andrés, F. Llorente, de la Reza, R., Cruz, P., Cuenda-Muñoz, D., Alfaro, E. J., Chavero, C., Cifuentes, C.
This work aims to investigate the behaviour of the lithium abundance in stars with and without detected planets. Our study is based on a sample of 1332 FGK main-sequence stars with measured lithium abundances, for 257 of which planets were detected.
Externí odkaz:
http://arxiv.org/abs/2402.01315
Autor:
de la Reza, R., Chavero, C., Roca-Fàbrega, S., de Andrés, F. Llorente, Cruz, P., Cifuentes, C.
Publikováno v:
A&A 671, A136 (2023)
The nature of the few known solar-mass stars simultaneously containing debris disks and planets remains an open question. A number of works have shown that this property appears to be independent of planetary masses as well as of stellar age, but pos
Externí odkaz:
http://arxiv.org/abs/2302.01850
Publikováno v:
A&A 654, A137 (2021)
We investigate two topics regarding solar mass FGK-type stars, the lithium rotation connection (LRC) and the existence of the "lithium desert". We determine the minimum critical rotation velocity ($v \sin i$) related with the LRC separating slow from
Externí odkaz:
http://arxiv.org/abs/2108.05852
Autor:
Chavero, C., de la Reza, R., Ghezzi, L., de Andrés, F. Llorente, Pereira, C. B., Giuppone, C., Pinzón, G.
Dwarf stars with debris discs and planets appear to be excellent laboratories to study the core accretion theory of planets formation. These systems are however, insufficiently studied. In this paper we present the main metallicity and lithium abunda
Externí odkaz:
http://arxiv.org/abs/1905.12066
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
Autor:
Jofré, E., Petrucci, R., Saffe, C., Saker, L., de la Villarmois, E. Artur, Chavero, C., Gómez, M., Mauas, P.
Publikováno v:
A&A 574, A50 (2015)
We present fundamental stellar parameters and chemical abundances for a sample of 86 evolved stars with planets and for a control sample of 137 stars without planets. The analysis was based on both high S/N and resolution echelle spectra. The goals o
Externí odkaz:
http://arxiv.org/abs/1410.6422
Autor:
Pereira, C. B., Jilinski, E., Drake, N. A., de Castro, D. B., Ortega, V. G., Chavero, C., Roig, F.
High-velocity halo stars provide important information about the properties of the extreme Galactic halo. The study of unbound and bound Population II stars permits us to better estimate the mass of the halo.} {We carried out a detailed spectroscopic
Externí odkaz:
http://arxiv.org/abs/1204.4755
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:
Rizzo GP, Sanches RC, Chavero C, Bianchi DS, Apuzzo E, Herrera SE, Agazzi ML, Keitelman IA, Trevani AS, Oliveira SC, Azzaroni O, Smaldini PL, Docena GH
Publikováno v:
BioRxiv : the preprint server for biology [bioRxiv] 2024 Jul 04. Date of Electronic Publication: 2024 Jul 04.
