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
16 papers · 1 filter
Mass Loss Evolution in the EUV Low Corona from SDO/AIA Data
Fernando M. López, Hebe Cremades, Federico A. Nuevo +2
We carry out an analysis of the evacuated mass from three coronal dimming regions observed by the {\it Atmospheric Imaging Assembly} (AIA) on board the {\it Solar Dynamics Observat…
A possible long-term activity cycle for ι Horologii: First results from the HKα & SPI-HKα projects
Matías G. Flores, Andrea P. Buccino, Carlos E. Saffe +1
To detect stellar activity cycles and study the possible star-planet interactions (SPI's), we have developed both HK and SPI-HK projects since 1999 and 2012 respectively. In…
Preliminary design of the INPE's Solar Vector Magnetograph
L. E. A. Vieira, A. L. Clúa de Gonzalez, A. Dal Lago +23
We describe the preliminary design of a magnetograph and visible-light imager instrument to study the solar dynamo processes through observations of the solar surface magnetic fiel…
MASTER optical polarization variability detection in the Microquasar V404 Cyg/GS2023+33
Vladimir M. Lipunov, E. Gorbovskoy, V. Kornilov +23
On 2015 June 15 the Swift space observatory discovered that the Galactic black hole candidate V404 Cyg was undergoing another active X-ray phase, after 25 years of inactivity (Bart…
Effect of bars on the galaxy properties
Matias Vera, Sol Alonso, Georgina Coldwell
Aims: With the aim of assessing the effects of bars on disc galaxy properties, we present an analysis of different characteristics of spiral galaxies with strong, weak and without…
First Simultaneous Views of the Axial and Lateral Perspectives of a Coronal Mass Ejection
I. Cabello, H. Cremades, L. Balmaceda +1
The different appearances exhibited by coronal mass ejections (CMEs) are believed to be in part the result of different orientations of their main axis of symmetry, consistent with…
Swift observations of the 2015 outburst of AG Peg -- from slow nova to classical symbiotic outburst
Gavin Ramsay, J. L. Sokoloski, G. J. M. Luna +1
Symbiotic stars often contain white dwarfs with quasi-steady shell burning on their surfaces. However, in most symbiotics, the origin of this burning is unclear. In symbiotic slow…
Spectroscopic signatures of magnetospheric accretion in Herbig Ae/Be stars. I. The case of HD101412
M. Schöller, M. A. Pogodin, J. A. Cahuasqui +10
Models of magnetically-driven accretion and outflows reproduce many observational properties of T Tauri stars. This concept is not well established for the more massive Herbig Ae/B…
Nuclear Activity in Circumnuclear Ring Galaxies
M. P. Aguero, R. J. Diaz, H. Dottori
We have analyzed the frequency and properties of the nuclear activity in a sample of galaxies with circumnuclear rings and spirals (CNRs). This sample was compared with a control s…
First Gravitational-Wave Burst GW150914: Part II. MASTER Optical Follow-Up Observations
V. M. Lipunov, V. Kornilov, E. Gorbovskoy +33
The Advanced LIGO observatory recently reported the first direct detection of gravitational waves predicted by Einstein (1916). We report on the first optical observations of the G…
Kinematics of M51-type interacting galaxies
G. Gunthardt, R. J. Díaz, M. P. Aguero
We present a kinematic catalogue for 21 M51-type galaxies. It consists of radial velocity distributions observed with long slit spectroscopy along different position angles, for bo…
SU Lyncis, a hard X-ray bright M giant: Clues point to a large hidden population of symbiotic stars
K. Mukai, G. J. M. Luna, G. Cusumano +6
Symbiotic star surveys have traditionally relied almost exclusively on low resolution optical spectroscopy. However, we can obtain a more reliable estimate of their total Galactic…
Symbiotic stars in X-rays III: Suzaku observations
N. E. Nuñez, T. Nelson, K. Mukai +2
We describe the X-ray emission as observed with Suzaku from five symbiotic stars that we selected for deep Suzaku observations after their initial detection with ROSAT, ASCA and Sw…
Low X-Ray Luminosity Galaxy Clusters: Main goals, sample selection, photometric and spectroscopic observations
J. L. Nilo Castellón, M. V. Alonso, D. García Lambas +10
We present the study of nineteen low X-ray luminosity galaxy clusters (L 0.5--45 erg s), selected from the ROSAT Position Sensitive Proportional…
Discovery of an activity cycle in the solar-analog HD 45184. Exploring Balmer and metallic lines as activity proxy candidates
M. Flores, J. F. González, M. Jaque Arancibia +2
(Abridged) Most stellar activity cycles similar to that found in the Sun have been detected by using the chromospheric Ca II H&K lines as stellar activity proxies. However, it is u…
A temperature condensation trend in the debris-disk binary system Zet2 Ret
C. Saffe, M. Flores, M. Jaque Arancibia +2
We explore condensation temperature Tc trends in the unique binary system Zet1 Ret - Zet2 Ret, to determine whether there is a depletion of refractories, which could be related to…