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
20 papers · 1 filter
The VISTA Variables in the Vía Láctea eXtended (VVVX) ESO public survey: Completion of the observations and legacy
R. K. Saito, M. Hempel, J. Alonso-García +143
The ESO public survey VISTA Variables in the Vía Láctea (VVV) surveyed the inner Galactic bulge and the adjacent southern Galactic disk from . Upon its conclusion, the c…
NIRDust: Probing Hot Dust Emission Around Type 2 AGN Using K-band Spectra
Gaia Gaspar, Martín Chalela, Juan Cabral +3
Hot dust in the proximity of AGNs strongly emits in the Near Infrared producing a red excess that, in type 2 sources, can be modeled to measure its temperature. In the era of high…
Spectroscopic observations of the machine-learning selected anomaly catalogue from the AllWISE Sky Survey
A. Solarz, R. Thomas, F. M. Montenegro-Montes +7
We present the results of a programme to search and identify the nature of unusual sources within the All-sky Wide-field Infrared Survey Explorer (WISE) that is based on a machine-…
The Faint Host Galaxies of C IV Absorbers at z > 5
Kristian Finlator, Caitlin Doughty, Zheng Cai +1
We explore the expected galaxy environments of CIV absorbers at z>5 using the Technicolor Dawn simulations. These simulations reproduce the observed history of reionization, the z~…
Faint LAEs near z>4.7 CIV absorbers revealed by MUSE
C. Gonzalo Diaz, Emma Ryan-Weber, Wouter Karman +5
We present the results from the search for Lyman Alpha emitters (LAEs) in the proximity of 11 CIV absorption systems at in the spectrum of the QSO J1030+0524, using data…
On the Lack of Correlation Between [OIII]/[OII] and Lyman-Continuum Escape Fraction
R. Bassett, E. V. Ryan-Weber, J. Cooke +9
We present the first results of our pilot study of 8 photometrically selected Lyman continuum (LyC) emitting galaxy candidates from the COSMOS field and focus on their optical emis…
Occurrence of LINER galaxies within the galaxy group environment
Georgina Coldwell, Luis Pereyra, Sol Alonso +2
We study the properties of a sample of 3967 LINER galaxies selected from SDSS-DR7, respect to their proximity to galaxy groups. The host galaxies of LINER have been analysed and co…
Multi-wavelenth monitoring of the changing-look AGN NGC 2617 during state changes
V. L. Oknyansky, C. M. Gaskell, N. A. Huseynov +18
Optical and near-infrared photometry, optical spectroscopy, and soft X-ray and UV monitoring of the changing-look active galactic nucleus NGC 2617 show that it continues to have th…
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…
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…
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…
Uncovering the nucleus candidate for NGC 253
G. I. Günthardt, M. P. Agüero, J. A. Camperi +4
NGC253 is the nearest spiral galaxy with a nuclear starburst which becomes the best candidate to study the relationship between starburst and AGN activity. However, this central re…
Half of the Most Luminous Quasars May Be Obscured: Investigating the Nature of WISE-Selected Hot, Dust-Obscured Galaxies
Roberto J. Assef, Peter R. M. Eisenhardt, Daniel Stern +9
The WISE mission has unveiled a rare population of high-redshift (), dusty, hyper-luminous galaxies, with infrared luminosities , and somet…
Milky Way Demographics with the VVV Survey II. Color Transformations and Near-Infrared Photometry for 136 Million Stars in the Southern Galactic Disk
M. Soto, R. Barba, G. Gunthardt +18
The new multi-epoch near-infrared VVV survey (VISTA Variables in the Via Lactea) is sampling 562 sq. deg of the Galactic bulge and adjacent regions of the disk. Accurate astrometry…
The Top Ten Spitzer YSOs in 30 Doradus
Nolan R. Walborn, Rodolfo H. Barba, Marta M. Sewilo
The most luminous Spitzer point sources in the 30 Doradus triggered second generation are investigated coherently in the 3-8 micron region. Remarkable diversity and complexity in t…
VVV DR1: The First Data Release of the Milky Way Bulge and Southern Plane from the Near-Infrared ESO Public Survey VISTA Variables in the Via Lactea
R. K. Saito, M. Hempel, D. Minniti +107
The ESO Public Survey VISTA Variables in the Via Lactea (VVV) started in 2010. VVV targets 562 sq. deg in the Galactic bulge and an adjacent plane region and is expected to run for…
Two O2 If*/WN6 stars possibly ejected from the massive young Galactic cluster Westerlund 2
A. Roman-Lopes, R. H. Barba, N. I. Morrell
In this paper we report the identification of two new Galactic O2 If*/WN6 stars (WR20aa and WR20c), in the outskirt of the massive young stellar cluster Westerlund 2. The morpholog…
A multifrequency study of the active star forming complex NGC6357. I. Interstellar structures linked to the open cluster Pis24
C. E. Cappa, R. Barbá, N. U. Duronea +4
We investigate the distribution of the gas (ionized, neutral atomic and molecular), and interstellar dust in the complex star forming region NGC6357 with the goal of studying the i…
The Galactic O-Star Spectroscopic Survey. I. Classification System and Bright Northern Stars in the Blue-Violet at R~2500
A. Sota, J. Maíz Apellániz, N. R. Walborn +5
We present the first installment of a massive spectroscopic survey of Galactic O stars, based on new, high signal-to-noise ratio, R~2500 digital observations from both hemispheres…
An HST/NICMOS view of the prototypical giant HII region NGC604 in M33
Rodolfo H. Barba, Jesus Maiz Apellaniz, Enrique Perez +5
We present the first high-spatial resolution near-infrared (NIR) imaging of NGC 604, obtained with the NICMOS camera aboard the Hubble Space Telescope (HST). These NICMOS broadband…