129 citations · 762 across the 18 of their papers we have counts for
18 papers
Spectroscopic and photometric confirmation of 3 globular and 14 intermediate-age clusters in the Irr II galaxy NGC3077
Pedro A. Ovando Ramirez, Y. D. Mayya, Lino H. Rodriguez-Merino +4
We present the results from spectroscopic and photometric analysis of 17 globular cluster (GC) candidates in the Irr II galaxy NGC 3077. The GC candidates were selected on the Hubb…
Long Term Multi-band Near Infra-Red Variability of the Blazar OJ 287 during 2007--2021
Alok C. Gupta, Pankaj Kushwaha, L. Carrasco +9
We present the most extensive and well-sampled long-term multi-band near-infrared (NIR) temporal and spectral variability study of OJ 287, considered to be the best candidate binar…
VHE gamma-ray detection of FSRQ QSO B1420+326 and modeling of its enhanced broadband state in 2020
V. A. Acciari, S. Ansoldi, L. A. Antonelli +230
Context. QSO B1420+326 is a blazar classified as a Flat Spectrum Radio Quasar (FSRQ). In the beginning of 2020 it underwent an enhanced flux state. An extensive multiwavelength cam…
The Near-Infrared Polarization of the Pre-Planetary Nebula Frosty Leo
E. O. Serrano Bernal, L. Sabin, A. Luna +3
We present a near-infrared imaging polarimetric study of the pre-planetary nebula: Frosty Leo. The observations were carried out in J, H and K' bands using the new polarimeter POLI…
Multiwavelength Photometric and Spectropolarimetric Analysis of the FSRQ 3C 279
V. M. Patiño-Álvarez, S. Fernandes, V. Chavushyan +6
In this paper, we present light curves for 3C 279 over a time period of six years; from 2008 to 2014. Our multiwavelength data comprise 1 mm to gamma-rays, with additional optical…
The mid-2016 flaring activity of the flat spectrum radio quasar PKS 2023-07
G. Piano, P. Munar-Adrover, L. Pacciani +8
Flat spectrum radio quasars (FSRQs) can suffer strong absorption above E = 25/(1+z) GeV, due to gamma-gamma interaction if the emitting region is at sub-parsec scale from the super…