90 citations · 467 across the 26 of their papers we have counts for
26 papers
Galaxy Pairs in Cosmic Voids
Maria Laura Ceccarelli, Sol Alonso, Diego Garcia Lambas
We present a statistical analysis of different astrophysical properties of a sample of galaxy pairs in cosmic voids. The sample consists of 72 galaxy pairs with projected separatio…
A catalog of ringed galaxies in the TNG50 simulation: Analysis of their properties and structure
Julia Fernandez, Emanuel Sillero, Sol Alonso +1
The catalog of ringed galaxies was compiled through visual classification of synthetic images from the TNG50 simulation. Galaxies were selected based on specific criteria: a redshi…
Barred AGN galaxies in paired systems: exploring the impact on nuclear activity
Sol Alonso, Matias Vera-Rueda, Georgina Coldwell +2
Aims: To unveil the influence of galaxy-galaxy interactions on material transport driven by galactic bars towards the central regions of active galactic nuclei (AGN) galaxies and a…
Revealing ringed galaxies in group environments
Julia Fernandez, . Sol Alonso, Valeria Mesa +1
Aims. We explore galaxies with ringed structures inhabiting poor and rich groups with the aim of assessing the effects of local density environments on ringed galaxy properties. Me…
Enlightening the Universe behind the Milky Way Bulge
Fernanda Duplancic, Sol Alonso, Georgina Coldwell +7
Context. The location of the Solar System constrains the detection of extragalactic sources beyond the Milky Way(MW) plane. The optical observations are hampered in the so--called…
Unveiling a new structure behind the Milky Way
Daniela Galdeano, Gabriel A. Ferrero, Georgina Coldwell +4
Context. The ZOA does not allow clear optical observations of extragalactic sources behind the Milky Way due to the meaningful extinction of the optical emission of these objects.…
A deep near-infrared view of the Ophiuchus galaxy cluster
D. Galdeano, G. Coldwell, F. Duplancic +8
Context: The Ophiuchus cluster of galaxies, located at low latitudes in the direction of the Galactic bulge, has been relatively poorly studied in comparison with other rich galaxy…
Properties of galaxies with ring structures
Julia Fernandez, Sol Alonso, Valeria Mesa +2
Aims: We present a statistical analysis of different characteristics of ringed spiral galaxies with the aim of assessing the effects of rings on disk galaxy properties. Methods: We…
AGNs in Small Galaxy Systems: comparing the main properties of active objects in pairs, triplets and groups
Fernanda Duplancic, Diego G. Lambas, Sol Alonso +1
We perform a comparative study of AGNs in pairs, triplets and groups. To this end we use the Duplancic et al. catalogue of small galaxy systems and consider BPT and WHAN diagnostic…
Overdensity of VVV galaxies behind the Galactic bulge
Daniela Galdeano, Luis Pereyra, Fernanda Duplancic +7
We studied a region of 1.636 square degrees corresponding to the VVV tile . Using SExtractor, we analysed photometric data generating a catalogue of extended sources in this…
Satellites and central galaxies in SDSS: the influence of interactions on their properties
Valeria Mesa, Sol Alonso, Georgina Coldwell +2
We use SDSS-DR14 to construct a sample of galaxy systems consisting of a central object and two satellites. We adopt projected distance and radial velocity difference criteria and…
The Global Environment of Small Galaxy Systems
Fernanda Duplancic, Federico Dávila-Kurbán, Georgina V. Coldwell +2
The main goal of this work is to investigate the influence of environment at different scales on the properties of galaxies in systems with a low number of members. To this end we…
On the nature of Small Galaxy Systems
F. Duplancic, G. V. Coldwell, S. Alonso. +1
We aim at defining homogeneous selection criteria of small galaxy systems in order to build catalogues suitable to compare main properties of pairs, triplets, and groups with four…
Weak lensing analysis of galaxy pairs using CS82 data
Elizabeth J. Gonzalez, Facundo Rodriguez, Diego García Lambas +6
In this work we analyze a sample of close galaxy pairs (relative projected separation kpc and relative radial velocities km s) using a weak lensing analy…
The impact of bars and interactions on optically selected AGNs in spiral galaxies
Sol Alonso, Georgina Coldwell, Fernanda Duplancic +2
Aims. With the aim of performing a suitable comparison of the internal process of galactic bars with respect to the external effect of interactions on driving gas toward the inner…
The orientation of galaxy pairs with filamentary structures: dependence on morphology
Valeria Mesa, Fernanda Duplancic, Sol Alonso +3
Aims. With the aim of performing an analysis of the orientations of galaxy pair systems with respect to the underlying large-scale structure, we study the alignment between the axi…
LINER galaxy properties and the local environment
Georgina V. Coldwell, Sol Alonso, Fernanda Duplancic +1
We analyse the properties of a sample of 5560 LINER galaxies selected from SDSS-DR12 at low redshift, for a complete range of local density environments. The host LINER galaxies we…
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…
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…
Galaxy triplets in Sloan Digital Sky Survey Data Release 7 - III. Analysis of Configuration and Dynamics
Fernanda Duplancic, Sol Alonso, Diego García Lambas +1
We analyse the spatial configuration and the dynamical properties of a sample of 92 galaxy triplets obtained from the SDSS-DR7 (SDSS-triplets) restricted to have members with spect…
AGN spiral galaxies in groups: effects of bars
Sol Alonso, Georgina Coldwell, Diego García Lambas
We explore properties of barred active spiral galaxies in groups selected from the SDSS-DR7, with the aim of assessing the effects of bars on AGN and the role of the high density e…
Confirmation of a cluster of galaxies hidden behind the Galactic bulge using the VVV Survey
Georgina Coldwell, Sol Alonso, Fernanda Duplancic +3
Suzaku and Chandra X-ray observations detected a new cluster of galaxies, Suzaku J1759-3450, at a redshift z=0.13. It is located behind the Milky Way, and the high Galactic dust ex…
Interacting galaxies: co-rotating and counter-rotating systems with tidal tails
Valeria Mesa, Fernanda Duplancic, Sol Alonso +2
We analyse interacting galaxy pairs with evidence of tidal features in the Sloan Digital Sky Survey Data Release 7 (SDSS-DR7). The pairs were selected within by requiring a…
Galaxy triplets in Sloan Digital Sky Survey Data Release 7: II. A connection with compact groups?
Fernanda Duplancic, Ana Laura O'Mill, Diego G. Lambas +2
We analyse a sample of 71 triplets of luminous galaxies derived from the work of O'Mill et al. (2012). We compare the properties of triplets and their members with those of control…