Zobrazeno 1 - 10
of 42
pro vyhledávání: '"S. Ramírez Alegría"'
Autor:
K Peña Ramírez, L C Smith, S Ramírez Alegría, A-N Chené, C González-Fernández, P W Lucas, D Minniti
Open clusters are key coeval structures that help us understand star formation, stellar evolution and trace the physical properties of our Galaxy. In the past years, the isolation of open clusters from the field has been heavily alleviated by the acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb27608e8fc0849b90b8fb2bacedff9f
http://arxiv.org/abs/2205.02735
http://arxiv.org/abs/2205.02735
Autor:
A Herrero, S R Berlanas, A Gil de Paz, F Comerón, J Puls, S Ramírez Alegría, M Garcia, D J Lennon, F Najarro, S Simón-Díaz, M A Urbaneja, J Gallego, E Carrasco, J Iglesias, R Cedazo, M L García Vargas, Á Castillo-Morales, S Pascual, N Cardiel, A Pérez-Calpena, P Gómez-Alvarez, I Martínez-Delgado
Publikováno v:
E-Prints Complutense. Archivo Institucional de la UCM
instname
Digital.CSIC. Repositorio Institucional del CSIC
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
instname
Digital.CSIC. Repositorio Institucional del CSIC
RUA. Repositorio Institucional de la Universidad de Alicante
Universidad de Alicante (UA)
2MASS J20395358+4222505 is an obscured early B supergiant near the massive OB star association Cygnus OB2. Despite its bright infrared magnitude (Ks = 5.82) it has remained largely ignored because of its dim optical magnitude (B = 16.63, V = 13.68).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70abbaa5d25362fa88540936e0941af3
http://arxiv.org/abs/2202.11806
http://arxiv.org/abs/2202.11806
Autor:
J. C. Bouret, A.-N. Chené, Jose H. Groh, S. Ramírez Alegría, J. Borissova, Fabrice Martins, Dante Minniti
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 627, pp.A170. ⟨10.1051/0004-6361/201935605⟩
Astronomy and Astrophysics-A&A, 2019, 627, pp.A170. ⟨10.1051/0004-6361/201935605⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 627, pp.A170. ⟨10.1051/0004-6361/201935605⟩
Astronomy and Astrophysics-A&A, 2019, 627, pp.A170. ⟨10.1051/0004-6361/201935605⟩
We obtained K-band spectroscopy of the brightest members of the cluster VVV CL074 in order to identify the massive star population. We also determined the stellar properties of the cluster's massive stars to better quantify the evolutionary sequences
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3177508c452aa688adc79f5712c88a72
https://hal.archives-ouvertes.fr/hal-02201256/document
https://hal.archives-ouvertes.fr/hal-02201256/document
Autor:
T. Palma, J. Borissova, V. Villanueva, Maximiliano Moyano, Ch. Moni Bidin, Leigh C. Smith, Dante Minniti, R. Kurtev, Javier Alonso-García, N. Medina, Michael A. Kuhn, Julio A. Carballo-Bello, S. Ramírez Alegría, P. W. Lucas, I. Dékány
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 462:501-510
We present deep near-infrared photometry and spectroscopy of the globular cluster 2MASS-GC03 projected in the Galactic disk using MMIRS on the Clay telescope (Las Campanas Observatory) and VISTA Variables in the Via Lactea survey (VVV) data. Most pro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d84fe7525418d6cdd4c131b416f09d6
https://doi.org/10.1093/mnras/stw1674
https://doi.org/10.1093/mnras/stw1674
Autor:
Janos Zsargó, R. Kurtev, S. Ramírez Alegría, A. Díaz-Azuara, L. Georgiev, F. Peñaloza, J. Borissova, C. Fierro
Publikováno v:
Publications of the Astronomical Society of the Pacific. 127:428-436
We present an atlas of 173 synthetic spectra of stars, with mass from 9 to 120 M⊙, covering the region of the OB main sequence stars in the H–R diagram. The spectra were calculated with the stellar atmosphere code CMFGEN, assuming solar metallici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31d81d070095b0a7f266458d09f4acb4
https://doi.org/10.1086/681703
https://doi.org/10.1086/681703
Autor:
L. V. Gramajo, C. Bonatto, Juan J. Clariá, S. Ramírez Alegría, I. Dékány, T. Palma, Javier Alonso-García, Dante Minniti
This project is a massive near-infrared (NIR) search for variable stars in highly reddened and obscured open cluster (OC) fields projected on regions of the Galactic bulge and disk. The search is performed using photometric NIR data in the $J$-, $H$-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::422d2a080c9b9bb34496f34e2050e809
http://arxiv.org/abs/1606.05028
http://arxiv.org/abs/1606.05028
Autor:
M. Gromadzki, J. Borissova, Radostin Kurtev, Michael A. Kuhn, A.-N. Chené, P. Amigo, Julio A. Carballo-Bello, S. Ramírez Alegría, Charles Jose Bonatto
Publikováno v:
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
The ESO public survey VISTA Variables in the V\'ia L\'actea (VVV) has contributed with deep multi-epoch photometry of the Galactic bulge and the adjacent part of the disk over 526 square degrees. More than a hundred cluster candidates have been repor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acb311e0e8d1f61e3c847c7086e0a86d
http://arxiv.org/abs/1602.04898
http://arxiv.org/abs/1602.04898
Autor:
de la Fuente, A. Herrero, Leigh C. Smith, Miguel A. Urbaneja, Francisco Najarro, Radostin Kurtev, Margaret M. Hanson, S. Ramírez Alegría, Jura Borissova, Philip W. Lucas, Christine Trombley, Miriam Garcia, Donald F. Figer, Ben Davies
The Dragonfish Nebula has been recently claimed to be powered by a superluminous but elusive OB association. Instead, systematic searches in near-infrared photometric surveys have found many other cluster candidates on this sky region. Among these, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::23fc5342359b7b1a57788371ab8c9bda
http://arxiv.org/abs/1602.02503
http://arxiv.org/abs/1602.02503
Autor:
Juan Carlos Testori, Gustavo Baume, A.-N. Chené, Mariela Alejandra Corti, Jorge Alejandro Panei, L. A. Suad, S. Ramírez Alegría, Radostin Kurtev, Jura Borissova
Publikováno v:
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
Universidad Nacional de La Plata
instacron:UNLP
Aims. We report on a study of the global properties of some embedded clusters that are found in the fourth quadrant of the Milky Way. We aim to clarify some issues that relate to their location in the Galaxy and their stellar formation processes. Met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95fe2b0030384ea7e92f42a79f040ad0
Publikováno v:
Astronomy & Astrophysics. 614:A116
Context. Recent near-infrared data have contributed to unveiling massive and obscured stellar populations in both new and previously known clusters in our Galaxy. These discoveries have lead us to view the Milky Way as an active star-forming machine.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10463e6e1b464117c421a712d6c0bece
https://doi.org/10.1051/0004-6361/201731720
https://doi.org/10.1051/0004-6361/201731720