1.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Consejo Nacional de Investigaciones Científicas y TécnicasAR105 papers
- National University of San JuanAR51 papers
- University of La SerenaCL38 papers
- Institute of Astronomy and Space PhysicsAR34 papers
- European Southern ObservatoryCL28 papers
- Argentine National ObservatoryAR25 papers
- Universidad Nacional de La PlataAR25 papers
- Leibniz Institute for Astrophysics PotsdamDE24 papers
- Universidad de Buenos AiresAR23 papers
- Instituto de Astrofísica de La Plata20 papers
- Universidad Nacional de CórdobaAR18 papers
- Centro Científico Tecnológico - San JuanAR16 papers
12 papers · 2 filters
A non-LTE spectral analysis of the 3He and 4He isotopes in the HgMn star kappa Cancri
Natalia L. Maza, Maria-Fernanda Nieva, Norbert Przybilla
We present a pilot study on non-local thermodynamic equilibrium (NLTE) line-formation computations for the isotopes 3He and 4He in the mercury-manganese star kappa Cancri. The impa…
Small-Scale and Global Dynamos and the Area and Flux Distributions of Active Regions, Sunspot Groups, and Sunspots: A Multi-Database Study
Andrés Muñoz-Jaramillo, Ryan R. Senkpeil, John C. Windmueller +12
In this work we take advantage of eleven different sunspot group, sunspot, and active region databases to characterize the area and flux distributions of photospheric magnetic stru…
The B Fields in OB Stars (BOB) Survey
T. Morel, N. Castro, L. Fossati +29
The B fields in OB stars (BOB) survey is an ESO large programme collecting spectropolarimetric observations for a large number of early-type stars in order to study the occurrence…
Abundance analysis, spectral variability, and search for the presence of a magnetic field in the typical PGa star HD19400
S. Hubrig, F. Castelli, J. F. Gonzalez +6
The aim of this study is to carry out an abundance determination, to search for spectral variability and for the presence of a weak magnetic field in the typical PGa star HD19400.…
Evolution of small-scale magnetic elements in the vicinity of granular-size swirl convective motions
S. Vargas Dominguez, J. Palacios, L. Balmaceda +2
Advances in solar instrumentation have led to a widespread usage of time series to study the dynamics of solar features, specially at small spatial scales and at very fast cadences…
Spectroscopic study of early-type multiple stellar systems II. New binary subsystems
M. E. Veramendi, J. F. González
Context. This work is part of a long-term spectroscopic study of a sample of 30 multiple stars with early-type components. In this second paper we present the results of six multip…
Accurate absolute parameters of the binary system V4089 Sgr
M. E. Veramendi, J. F. Gonzalez
We carried out a spectroscopic and photometric analysis of the binary V4089 Sgr with the aim to obtain absolute masses and radii of the components and to compare these parameters w…
Confirmation of the Luminous Blue Variable status of MWC 930
A. S. Miroshnichenko, N. Manset, S. V. Zharikov +14
We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006--2013. Based on our earlier data…
Dynamical detection of three triple stellar systems in open clusters
J. F. Gonzalez, M. E. Veramendi, C. R. Cowley
We present a kinematic analysis of three triple stellar systems belonging to two open clusters: CPD-60°961 and HD66137 in NGC2516, and HD315031 in NGC6530. All three systems are hi…
B fields in OB stars (BOB): The discovery of a magnetic field in a multiple system in the Trifid Nebula, one of the youngest star forming regions
S. Hubrig, L. Fossati, T. A. Carroll +12
Recent magnetic field surveys in O- and B-type stars revealed that about 10% of the core-hydrogen-burning massive stars host large-scale magnetic fields. The physical origin of the…
Symbiotic stars in X-rays II: faint sources detected with XMM-Newton and Chandra
N. E. Nuñez, G. J. M. Luna, I. Pillitteri +1
We report the detection, with and XMM-, of faint, soft X-ray emission from four symbiotics stars that were not known to be X-ray sources. These four o…
On the nature of sn stars. I. A detailed abundance study
C. Saffe, H. Levato
The sn stars present sharp Balmer lines, sharp metallic lines and broad coreless He I lines. Initially Abt & Levato proposed a shell-like nature to explain the sn stars, although t…