activity
20042020
most citedThe Luminosity Function of X-ray Selected Active Galactic Nuclei: Evolution of Supermassive Black Holes at High Redshift

290 citations · 637 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.HE2020★ 53 cited

Quasi-periodic behaviour in the optical and γ-ray light curves of blazars 3C 66A and B2 1633+38

J. Otero-Santos, J. A. Acosta-Pulido, J. Becerra González +18

We report on quasi-periodic variability found in two blazars included in the Steward Observatory Blazar Monitoring data sample: the BL Lac object 3C 66A and the Flat Spectrum Radio…

astro-ph.HE2017★ 47 cited

Dissecting the long-term emission behaviour of the BL Lac object Mrk 421

M. I. Carnerero, C. M. Raiteri, M. Villata +4

We report on long-term multi-wavelength monitoring of blazar Mrk 421 by the GASP-WEBT collaboration and Steward Observatory, and by the Swift and Fermi satellites. We study the sou…

astro-ph.HE2016★ 2 cited

Polarization angle swings in blazars: The case of 3C 279

S. Kiehlmann, T. Savolainen, S. G. Jorstad +61

Over the past few years, several occasions of large, continuous rotations of the electric vector position angle (EVPA) of linearly polarized optical emission from blazars have been…

astro-ph.CO2011★ 21 cited

Search for correlations between the optical and radio polarization of AGNs II: VLBA polarization data at 12+15+22+24+43 GHz

J. C. Algaba, D. C. Gabuzda, P. S. Smith

Previous research showed most BL Lac objects and some quasars have aligned VLBI-core and optical polarizations, although some of the AGNs also showed no obvious relationship betwee…

astro-ph.HE2011★ 6 cited

Gamma-ray emission region located in the parsec scale jet of OJ287

Ivan Agudo, Svetlana G. Jorstad, Alan P. Marscher +8

We report on the location of the gamma-ray emission region in flares of the BL Lacertae object OJ287 at >14pc from the central supermassive black hole. We employ data from multi-sp…

astro-ph2008★ 121 cited

Spitzer/MIPS Observations of Stars in the Beta Pictoris Moving Group

L. M. Rebull, K. R. Stapelfeldt, M. W. Werner +7

We present Multiband Imaging Photometer for Spitzer (MIPS) observations at 24 and 70 microns for 30 stars, and at 160 microns for a subset of 12 stars, in the nearby (~30 pc), youn…