V
Vittorio F. Braga
Researcher at Andrés Bello National University
Publications - 62
Citations - 1225
Vittorio F. Braga is an academic researcher from Andrés Bello National University. The author has contributed to research in topics: RR Lyrae variable & Metallicity. The author has an hindex of 16, co-authored 49 publications receiving 994 citations. Previous affiliations of Vittorio F. Braga include INAF & University of Rome Tor Vergata.
Papers
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Journal ArticleDOI
On a new theoretical framework for rr lyrae stars. i. the metallicity dependence
Marcella Marconi,G. Coppola,Giuseppe Bono,Giuseppe Bono,Vittorio F. Braga,Vittorio F. Braga,Adriano Pietrinferni,R. Buonanno,R. Buonanno,Marco Castellani,I. Musella,Vincenzo Ripepi,R. F. Stellingwerf +12 more
TL;DR: In this article, a nonlinear, time-dependent convective hydrodynamical model of RR Lyrae stars is presented, assuming a constant helium-to-metal enrichment ratio and a broad range in metal abundances (Z = 0.0001?0.02).
Journal ArticleDOI
Optical and Near-Infrared UBVRIJHK Photometry for the RR Lyrae Stars in the Nearby Globular Cluster M4 (NGC 6121)*
Peter B. Stetson,Vittorio F. Braga,Massimo Dall'Ora,Giuseppe Bono,R. Buonanno,I. Ferraro,G. Iannicola,Massimo Marengo,Jillian R. Neeley +8 more
TL;DR: In this paper, optical and near-infrared UBVRIJHK photometry of stars in the Galactic globular cluster M4 (NGC 6121) based upon a large corpus of observations obtained mainly from public astronomical archives is presented.
Journal ArticleDOI
On the distance of the globular cluster M4 (NGC 6121) using RR Lyrae stars: I. optical and near-infrared Period-Luminosity and Period-Wesenheit relations
Vittorio F. Braga,Vittorio F. Braga,Massimo Dall'Ora,Giuseppe Bono,Giuseppe Bono,Peter B. Stetson,I. Ferraro,G. Iannicola,Massimo Marengo,Jillian R. Neeley,S. E. Persson,R. Buonanno,R. Buonanno,G. Coppola,Wendy L. Freedman,Barry F. Madore,Marcella Marconi,Noriyuki Matsunaga,Andy Monson,Jeffrey A. Rich,Victoria Scowcroft,Mark Seibert +21 more
TL;DR: In this article, the authors presented new distance determinations to the nearby globular M4 (NGC 6121) based on accurate optical and near-infrared (NIR) mean magnitudes for fundamental (FU) and first overtone (FO) RR Lyrae variables (RRLs), and new empirical optical and NIR period-luminosity (PL) and period-Wesenheit (PW) relations.
Journal ArticleDOI
The Carina Project IX: On Hydrogen and Helium Burning Variables
G. Coppola,Marcella Marconi,Peter B. Stetson,Giuseppe Bono,Giuseppe Bono,Vittorio F. Braga,Vittorio F. Braga,Vincenzo Ripepi,Massimo Dall'Ora,I. Musella,R. Buonanno,R. Buonanno,M. Fabrizio,I. Ferraro,Giuliana Fiorentino,G. Iannicola,Matteo Monelli,Matteo Monelli,Mario Nonino,Frédéric Thévenin,Alistair R. Walker +20 more
TL;DR: In this article, the authors presented new multi-band (UBVI) time-series data of helium burning variables in the Carina dwarf spheroidal galaxy, including 92 RR Lyrae stars and 20 anomalous Cepheids, one of which is new identification.
Journal ArticleDOI
Optical and Near-Infrared UBVRIJHK Photometry for the RR Lyrae stars in the Nearby Globular Cluster M4 (NGC 6121)
Peter B. Stetson,Vittorio F. Braga,Massimo Dall'Ora,Giuseppe Bono,R. Buonanno,I. Ferraro,G. Iannicola,Massimo Marengo,Jillian R. Neeley +8 more
TL;DR: In this article, optical and near-infrared UBVRIJHK photometry of stars in the Galactic globular cluster M4 (NGC 6121) based upon a large corpus of observations obtained mainly from public astronomical archives is presented.