activity
20012020
most citedEvidence for periodicity in 43 year-long monitoring of NGC 5548

83 citations · 140 across the 6 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2020★ 17 cited

Multiwavelength Analysis of the Variability of the Blazar 3C 273

Sunil Fernandes, Víctor M. Patiño-Álvarez, Vahram Chavushyan +2

We present multiwavelength light curves and polarimetric data of the Flat Spectrum Radio Quasar 3C 273 over 8 years. The wavelength range of our data set extends from radio to gamm…

astro-ph.HE2018★ 29 cited

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…

astro-ph.HE2016★ 83 cited

Evidence for periodicity in 43 year-long monitoring of NGC 5548

E. Bon, S. Zucker, H. Netzer +14

We present an analysis of 43 years (1972 to 2015) of spectroscopic observations of the Seyfert 1 galaxy NGC 5548. This includes 12 years of new unpublished observations (2003 to 20…

astro-ph.SR2014★ 6 cited

Supersolar metallicity in G0-G3 main sequence stars with V<15

R. López-Valdivia, E. Bertone, M. Chávez +4

The basic stellar atmospheric parameters (effective temperature, surface gravity and global metallicity) were simultaneously determined for a sample of 233 stars, limited in magnit…

astro-ph.HE2013★ 4 cited

Optical Spectrophotometric Monitoring of Fermi/LAT Bright Sources

V. Patiño-Álvarez, V. Chavushyan, J. León-Tavares +4

We describe an ongoing optical spectrophotometric monitoring program of a sample of Fermi/LAT bright sources showing prominent and variable γ-ray emission, with the 2.1m telescope…

astro-ph2001★ 1 cited

IRAS F02044+0957: radio source in interacting system of galaxies

O. V. Verkhodanov, V. H. Chavushyan, R. Mújica +2

The steep spectrum of IRAS F02044+0957 was obtained with the RATAN-600 radio telescope at four frequencies. Optical spectroscopy of the system components, was carried out with the…