Zobrazeno 1 - 10
of 29
pro vyhledávání: '"L. Suarez-Andres"'
Autor:
Arash Danesh, Elham Saremi, R. Clavero, Mojtaba Raouf, Jacco Th. van Loon, P. Short, L. Suarez-Andres, James R. Bamber, Alireza Molaeinezhad, Atefeh Javadi, Ghassem Gozaliasl, Habib G. Khosroshahi, Iain McDonald
An optical monitoring survey in the nearby dwarf galaxies was carried out with the 2.5-m Isaac Newton Telescope (INT). 55 dwarf galaxies and four isolated globular clusters in the Local Group (LG) were observed with the Wide Field Camera (WFC). The m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4201461777505065381cb2c78a2cac57
http://arxiv.org/abs/2004.05620
http://arxiv.org/abs/2004.05620
Akademický článek
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Autor:
Garik Israelian, V. Zh. Adibekyan, L. Suarez-Andres, Nuno C. Santos, E. Delgado Mena, S. G. Sousa, J. I. González Hernández
Aims. We present a detailed study of the Mg/Si and C/O ratios and their importance in determining the mineralogy of planetary companions. Methods. Using 499 solar-like stars from the HARPS sample, we determine C/O and Mg/Si elemental abundance ratios
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b62e188517a7e9c98c80231383b9e5a
Autor:
A. C. S. Ferreira, E. Delgado-Mena, Nuno C. Santos, Annelies Mortier, M. Tsantaki, G. D. C. Teixeira, D. T. Andreasen, L. Suarez-Andres, S. G. Sousa
Context: Thanks to the importance that the star-planet relation has to our understanding of the planet formation process, the precise determination of stellar parameters for the ever increasing number of discovered extrasolar planets is of great rele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4742b9ed451d0bb3dc7e0449fa3a8ab3
Autor:
E. Delgado Mena, Nuno C. Santos, V. Zh. Adibekyan, S. G. Sousa, J. I. González Hernández, Garik Israelian, L. Suarez-Andres
Publikováno v:
NASA Astrophysics Data System
Context. Carbon, oxygen and nitrogen (CNO) are key elements in stellar formation and evolution, and their abundances should also have a significant impact on planetary formation and evolution. Aims. We present a detailed spectroscopic analysis of 111
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::470f974f64850f4b42f0f73d088ffae7
http://arxiv.org/abs/1611.10092
http://arxiv.org/abs/1611.10092
Autor:
L. Suarez-Andres, S. G. Sousa, Nuno C. Santos, Ivan Minchev, João P. Faria, V. Adibekyan, A. A. Hakobyan, E. Delgado-Mena, G. Harutyunyan, Pedro Figueira, Garik Israelian, J. I. González Hernández
Publikováno v:
NASA Astrophysics Data System
During the past decade, several studies reported a correlation between chemical abundances of stars and condensation temperature (also known as Tc trend). However, the real astrophysical nature of this correlation is still debated. The main goal of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::53712adb83dcf43b8cab717554836daa
We present new medium-resolution spectroscopic observations of the black hole X-ray binary Nova Muscae 1991 taken with X-Shooter spectrograph installed at the 8.2m-VLT telescope. These observations allow us to measure the time of inferior conjunction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e17c74f09b937492915479ed1699ceb3
We present UES@WHT high-resolution spectra of the low-mass X-ray binary (LMXB) Cygnus X-2. We have derived the stellar parameters of the secondary star using $\chi^{2}$ minimisation procedure, and taking into account any possible veiling from the acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1abc063a2d034fbbd9e5b4f091b6aa55
Autor:
Nuno C. Santos, V. Zh. Adibekyan, S. G. Sousa, L. Suarez-Andres, J. I. González Hernández, Garik Israelian, E. Delgado Mena
Publikováno v:
Astronomy & Astrophysics. 591:A69
Carbon, nitrogen, and oxygen (CNO) are key elements in stellar formation and evolution, and their abundances should also have a significant impact on planetary formation and evolution. We present a detailed spectroscopic analysis of 74 solar-type sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec566dcccaea7d34dbd70f987a5d9d36
https://doi.org/10.1051/0004-6361/201628455
https://doi.org/10.1051/0004-6361/201628455
Autor:
Nuno C. Santos, Vardan Adibekyan, Pedro Figueira, G. Harutyunyan, Elisa Delgado-Mena, João P. Faria, J. I. González Hernández, A. A. Hakobyan, S. G. Sousa, L. Suarez-Andres, G. Israelian
Publikováno v:
Astronomy & Astrophysics. 591:A34
Context. Several studies have reported a correlation between the chemical abundances of stars and condensation temperature (known as T c trend). Very recently, a strong T c trend was reported for the ζ Reticuli binary system, which consists of two s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::991570232d0707108c62f086eb47a40d
https://doi.org/10.1051/0004-6361/201628453
https://doi.org/10.1051/0004-6361/201628453