47 citations · 124 across the 5 of their papers we have counts for
5 papers
Clash of Titans: a MUSE dynamical study of the extreme cluster merger SPT-CL J0307-6225
D. Hernández-Lang, A. Zenteno, A. Diaz-Ocampo +23
We present VLT/MUSE spectroscopy, along with archival Gemini/GMOS spectroscopy, Magellan/Megacam imaging, and Chandra X-ray emission for SPT-CL J0305-6225, a z=0.58 major merging g…
The nature of nuclear Halpha emission in LINERs
J. Masegosa, I. Márquez, A. Ramirez +1
To get insight in the nature of the ionized gas in the nuclear region of LINERs we have performed a study of HST Halpha imaging of 32 LINERs. The main conclusion from this analysis…
Optical Microvariability in Quasars: Spectral Variability
A. Ramirez, D. Dultzin, J. A. de Diego
We present a method that we developed to discern where the optical microvariability (OM) in quasars originates: in the accretion disk (related to thermal processes) or in the jet (…
Multiband Comparative Study of Optical Microvariability in RL vs. RQ Quasars
A. Ramirez, J. A. de Diego, D. Dultzin +1
We present the results of an optical multi-band (BVR) photometric monitoring program of 22 core-dominated radio-loud quasars (CRLQs) and 22 radio-quiet quasars (RQQs). The aim was…
Optical variability of PKS 0736+017
A. Ramirez, J. A. de Diego, D. Dultzin-Hacyan +1
We present BVR photometric observations of the blazar PKS 0736+017. These observations were carried out with three telescopes in Mexico and two in Spain between December 1998 and A…