27 citations · 138 across the 12 of their papers we have counts for
14 papers
The extreme Disturbed Galaxy Cluster Sample (eDGeS): Spectroscopy and Dynamical Analysis of the eROSITA-Selected Merging Galaxy Cluster Candidate 1eRASS J025859.4-193727
Anish S. Aradhey, Eleazar R. Carrasco, Alfredo Zenteno +7
Addressing open questions such as the effect of galaxy cluster mergers on the evolution of galaxies and the self-interaction cross-section of dark matter requires the construction…
The intracluster light analysis of the most evolved systems of galaxies: fossil groups
Nícolas O. L. de Oliveira, Yolanda Jiménez-Teja, Renato A. Dupke +7
We present the analysis of the intracluster light (ICL) in three fossil groups (FG), RXJ085640.72+055347.36, RX J1136+0713, and RX J1410+4145, at z ~ 0.1. We used two optical broad…
Ultra-deep imaging of NGC1052-DF2 and NGC1052-DF4 to unravel their origins
Giulia Golini, Mireia Montes, Eleazar R. Carrasco +2
A number of scenarios have been proposed to explain the low velocity dispersion (and hence possible absence of dark matter) of the low surface brightness galaxies NGC1052-DF2 and N…
Independent Evidence for earlier formation epochs of fossil groups of galaxies through the intracluster light: the case for RX J100742.53+380046.6
Renato A. Dupke, Yolanda Jimenez-teja, Yuanyuan Su +9
Fossil groups (FG) of galaxies still present a puzzle to theories of structure formation. Despite the low number of bright galaxies, they have relatively high velocity dispersions…
Dynamical analysis of the cluster pair: A3407 + A3408
R. S. Nascimento, A. L. B. Ribeiro, M. Trevisan +3
We carried out a dynamical study of the galaxy cluster pair A3407 \& A3408 based on a spectroscopic survey obtained with the 4 meter Blanco telescope at the CTIO, plus 6dF data, an…
Astrometry with MCAO at Gemini and at ELTs
Tobias K. Fritz, Nitya Kallivayalil, Eleazar R. Carrasco +11
We present in this study a first analysis of the astrometric error budget of absolute astrometry relative to background galaxies using adaptive optics. We use for this analysis mul…
NGC 6845: metallicity gradients and star formation in a complex compact group
D. Olave-Rojas, S. Torres-Flores, E. R. Carrasco +3
We have obtained Gemini/GMOS spectra of 28 regions located across the interacting group NGC 6845, spanning from the inner regions of the four major galaxies (NGC 6845A, B, C, D) to…
Probing the nature of the pre-merging system Hickson Compact Group 31 through IFU data
M. Alfaro-Cuello, S. Torres-Flores, E. R. Carrasco +3
We present a study of the kinematics and the physical properties of the central region of the Hickson Compact Group 31 (HCG 31), focusing on the HCG 31A+C system, using integral fi…
Witnessing gas mixing in the metal distribution of the Hickson Compact Group HCG 31
S. Torres-Flores, C. Mendes de Oliveira, P. Amram +3
We present, for the first time, direct evidence that, in a merger of disk galaxies, the preexisting central metallicities will mix as a result of gas being transported in the merge…
Gemini Frontier Fields: Wide-field Adaptive Optics -band Imaging of the Galaxy Clusters MACS J0416.1-2403 and Abell 2744
Mischa Schirmer, Rodrigo Carrasco, Peter Pessev +4
We have observed two of the six Frontier Fields galaxy clusters, MACS J0416.1-2403 and Abell 2744, using the Gemini Multi-Conjugate Adaptive Optics System (GeMS) and the Gemini Sou…
A census of H emitters in the intergalactic medium of the NGC 2865 system
F. Urrutia-Viscarra, M. Arnaboldi, C. Mendes de Oliveira +4
Tidal debris which are rich in HI gas, formed in interacting and merging systems, are suitable laboratories to study star formation outside galaxies. Recently, several such systems…
Low X-Ray Luminosity Galaxy Clusters. II. Optical properties and morphological content at 0.18 < z < 0.70
José Luis Nilo Castellón, M. Victoria Alonso, Diego García Lambas +4
This is the second of a series of papers on low X-ray luminosity galaxy clusters, in which we present the , and photometry obtained with GMOS-IMAGE…
Gemini GMOS--IFU spectroscopy of the compact HII galaxies Tol 0104-388 and Tol 2146-391: The dependence on the properties of the interstellar medium
P. Lagos, E. Telles, A. Nigoche-Netro +1
Using GMOS--IFU spectroscopic observations of the compact HII/BCD galaxies Tol 0104-388 and Tol 2146-391, we study the spatial distribution of emission lines, equivalent width EW(H…
Star Cluster Complexes and the Host Galaxy in Three HII Galaxies: Mrk 36, UM 408, and UM 461
Patricio Lagos, Eduardo Telles, A. Nigoche-Netro +1
We present a stellar population study of three HII galaxies (Mrk 36, UM 408, and UM 461) based on the analysis of new ground-based high resolution near-infrared J, H and Kp broad-b…