Zobrazeno 1 - 10 of 63 pro vyhledávání: '"Roberto Claudio Gamen"'
1
A multiwavelength study of the H ii region G347.600 + 00.211 and its effects on the surrounding medium
Autor: Silvina Cichowolski, S B Cárdenas, L. Rizzo, J. A. Molina Lera, L. A. Suad, Roberto Claudio Gamen
Publikováno v: Monthly Notices of the Royal Astronomical Society. 509:3395-3409
We present a multiwavelength investigation of the H ii region G347.600+00.211, located at a distance of 7.9 kpc. We analyse the gas and dust properties aiming to disentangle the origin of the region as well as its role in the formation of new stars.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2c8c483794cfe74c42a1a45a487426fd
https://doi.org/10.1093/mnras/stab3084
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2
Fundamental parameters of the massive eclipsing binary HM1 8
Autor: Rodolfo H. Barbá, Philip Massey, Roberto Claudio Gamen, Omar Gustavo Benvenuto, G. Ferrero, Nidia Morrell, C. Rodriguez, José Ignacio Arias
Publikováno v: Monthly Notices of the Royal Astronomical Society. 508:2179-2193
We present a comprehensive study of the massive binary system HM1~8, based on multi-epoch high resolution spectroscopy, $V$-band photometry and archival X-ray data. Spectra from the OWN Survey, a high resolution optical monitoring of Southern O and W
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::959f4d75bced684fd6cd8fc7ab2c52fb
https://doi.org/10.1093/mnras/stab2699
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3
A remarkable change of the spectrum of the magnetic Of?p star HD 148937 reveals evidence of an eccentric, high-mass binary
Autor: Nolan R. Walborn, Rodolfo H. Barbá, Nidia Morrell, José Ignacio Arias, Roberto Claudio Gamen, Chris Evans, Yaël Nazé, Jan Cami, Gregg A. Wade, Amin Farhang, I. D. Howarth, Jonathan Smoker, Nick L. J. Cox
Publikováno v: Monthly Notices of the Royal Astronomical Society. 483:2581-2591
We report new spectroscopic observations of the magnetic Of?p star HD 148937 obtained since 2015 that differ qualitatively from its extensive historical record of weak, periodic spectral variations. This remarkable behaviour represents clear evidence
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4780450be3eb74d46820bcb7a198cb4
https://doi.org/10.1093/mnras/sty3304
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4
A new spectroscopic analysis of the massive O + O type binary HD 54662 AB
Autor: C. Sabin-Sanjulian, M. V. McSwain, C. Putkuri, Nidia Morrell, Rodolfo H. Barbá, Alexander W. Fullerton, S. S. Diaz, G. Ferrero, Tabetha S. Boyajian, J. Maíz Apellániz, José Ignacio Arias, Roberto Claudio Gamen
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
Instituto Nacional de Técnica Aeroespacial (INTA)
instname
Digital.CSIC. Repositorio Institucional del CSIC
SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
HD 54662 AB is one of the three O + OB binaries known so far with orbital period longer than 1000 d, offering the opportunity to test scenarios of massive star formation and models of single stellar evolution. Here, we present a detailed study of thi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5d10fc6b31968aab6648543d94cbda29
https://academic.oup.com/mnras/article/494/3/3937/5825374
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5
Young star clusters and the structure of the second Galactic quadrant
Autor: Gustavo Baume, Roberto Claudio Gamen, J. A. Molina Lera
Publikováno v: Monthly Notices of the Royal Astronomical Society. 480:2386-2404
Fil: Molina Lera, Jose Alejo. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet - La Plata. Instituto de Astrofisica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronomicas y Geofi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::130428c6c469adfd44d73edbe99c547e
https://doi.org/10.1093/mnras/sty1874
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6
Non-synchronous rotations in massive binary systems
Autor: Rodolfo H. Barbá, C. Putkuri, Roberto Claudio Gamen, Nidia Morrell, Omar Gustavo Benvenuto, José Ignacio Arias
Publikováno v: Astronomy & Astrophysics. 650:A96
Context. The OWN Survey has detected several O-type stars with composite spectra whose individual components show very different line broadening. Some of these stars have been revealed as binary systems whose components are asynchronous. This fact ma
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46a227ad39469f06d98c7f12409e8cc9
https://doi.org/10.1051/0004-6361/202039970
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8
Evidence for disc regulation in the lowest-mass stars of the young stellar cluster NGC 2264
Autor: Lucas A. Cieza, Dawn E. Peterson, Santiago Orcajo, Roberto Claudio Gamen
In the pre-main-sequence stage, star-disc interactions have been shown to remove stellar angular momentum and regulate the rotation periods of stars with M2 and earlier spectral types. Whether disc regulation also extends to stars with later spectral
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::845f893da4b9e8cd89bfe22d3d5f7856
http://arxiv.org/abs/1905.10312
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9
MONOS: Multiplicity Of Northern O-type Spectroscopic systems. I. Project description and spectral classifications and visual multiplicity of previously known objects
Autor: J. Lorenzo, Amparo Marco, E. Trigueros Páez, C. Fariña, Sergio Simón-Díaz, J. Salas, A. Herrero, Julia Ines Arias, Ignacio Negueruela, Alfredo Sota, Roberto Claudio Gamen, Jose A. Caballero, Nidia Morrell, Rodolfo H. Barbá, J. Maíz Apellániz, Emilio J. Alfaro, Anne Pellerin
Publikováno v: DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
Universidad de Alicante (UA)
Digital.CSIC. Repositorio Institucional del CSIC
instname
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
RUA. Repositorio Institucional de la Universidad de Alicante
Instituto Nacional de Técnica Aeroespacial (INTA)
This article has an erratum: A&A 639: C1 (2020)
Context. Multiplicity in massive stars is key to understanding the chemical and dynamical evolution of galaxies. Among massive stars, those of O type play a crucial role due to their high masses an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3dacfaab47c98e1feb433c6f68b0186
http://arxiv.org/abs/1904.11385
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10
The enigmatic binary system HD 5980
Autor: Roberto Claudio Gamen, Gloria Koenigsberger, Rodolfo H. Barbá, Yaël Nazé, D. J. Hillier, Nidia Morrell
Publikováno v: SEDICI (UNLP)
Universidad Nacional de La Plata
instacron:UNLP
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
The Small Magellanic Cloud multiple system HD 5980 contains a luminous blue variable (LBV) that underwent a major eruption in 1994, and whose current spectrum is that of a hydrogen-rich Wolf–Rayet (WR) star. Since the eruption, the wind mass-loss r
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::395b113031bef98b6eed8617481c3f33
http://sedici.unlp.edu.ar/handle/10915/123486
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