activity
19982025
most citedPeriodic Gamma-ray Modulation of the blazar PG 1553+113 Confirmed by Fermi-LAT and Multi-wavelength Observations

19 citations · 25 across the 5 of their papers we have counts for

collaborators

6 papers

astro-ph.HE2025★ 19 cited

Periodic Gamma-ray Modulation of the blazar PG 1553+113 Confirmed by Fermi-LAT and Multi-wavelength Observations

S. Abdollahi, L. Baldini, G. Barbiellini +98

A 2.1-year periodic oscillation of the gamma-ray flux from the blazar PG 1553+113 has previously been tentatively identified in almost 7 year of data from the Fermi Large Area Tele…

astro-ph2008

The time-delay of the gravitationally lensed double quasar UM 673

T. A. Akhunov, R. W. Schmidt, O. Burkhonov +11

The paper has been withdrawn because double checking and comparison with other data sets after the original submission showed that a broken R-band filter at the Maidanak telescope…

astro-ph2007

Constraining global parameters of accreting black holes by modeling magnetic flares

R. W. Goosmann, M. Mouchet, M. Dovciak +3

We present modeling results for the reprocessed radiation expected from magnetic flares above AGN accretion disks. Relativistic corrections for the orbital motion of the flare and…

astro-ph2007★ 6 cited

Modeling time delays in the X-ray spectrum of the Seyfert galaxy MCG-6-30-15

R. W. Goosmann, B. Czerny, V. Karas +1

We propose a reflection model of the time delays detected during an exceptionally bright, single flare in MCG-6-30-15. We consider a scenario in which the delays of the hard X-rays…

astro-ph2007

Modeling the X-ray fractional variability spectrum of Active Galactic Nuclei using multiple flares

R. W. Goosmann, M. Dovciak, V. Karas +3

Using Monte-Carlo simulations of X-ray flare distributions across the accretion disk of active galactic nuclei (AGN), we obtain modeling results for the energy-dependent fractional…

astro-ph1998

WNB 0313+683: Analysis of a Newly Discovered Giant Radio Galaxy

A. P. Schoenmakers, K. -H. Mack, L. Lara +4

We present the results of a detailed analysis of the newly discovered 15 arcmin large FRII-type radio galaxy WNB 0313+683. It has a redshift of 0.0901 +/- 0.0002 and a projected li…