258 citations · 612 across the 28 of their papers we have counts for
27 papers
Active galactic nuclei and gravitational redshifts
N. D. Padilla, S. Carneiro, J. Chaves-Montero +4
Context: Gravitational redshift is a classical effect of Einstein's General Relativity, already measured in stars, quasars and clusters of galaxies. Aims: We here aim to identify t…
Powerful yet lonely: Is 3C 297 a high-redshift fossil group?
Valentina Missaglia, Juan P. Madrid, Mischa Schirmer +8
The environment of the high-redshift (z=1.408), powerful radio-loud galaxy 3C 297 has several distinctive features of a galaxy cluster. Among them, a characteristic halo of hot gas…
Halo cluster shapes: Insights from simulated galaxies and ICL with prospects for weak lensing applications
Elizabeth J. Gonzalez, Cinthia Ragone-Figueroa, Carlos J. Donzelli +3
We present a detailed study of the shapes and alignments of different galaxy cluster components using hydrodynamical simulations. We compute shape parameters from the Dark Matter (…
Optical study of PKS B1322-110, the intra-hour variable radio source
Juan P. Madrid, Artem V. Tuntsov, Mischa Schirmer +7
Observations with the Australia Telescope Compact Array revealed intra-hour variations in the radio source PKS B1322-110 (Bignall et al. 2019). As part of an optical follow-up, we…
New GTC Spectroscopic Data and a Statistical Study to Better Constrain the Redshift of the BL Lac RGB J2243+203
D. Rosa González, H. Muriel, Y. D. Mayya +13
We present new spectroscopic data of the BL Lac RGB 2243+203, and its surroundings, obtained with the OSIRIS Multi Object Spectrograph (MOS) mounted in the Gran Telescopio Canarias…
3C 17: The BCG of a galaxy cluster at z=0.22
Juan P. Madrid, Carlos J. Donzelli, Alberto Rodriguez-Ardila +3
Gemini Multi Object Spectrograph medium-resolution spectra and photometric data of 39 objects in the field of the radio galaxy 3C 17 are presented. Based on the new data, a previou…