activity
20002026
most citedStochastic Modeling of the Fermi/LAT Gamma-ray Blazar Variability

88 citations · 474 across the 19 of their papers we have counts for

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7 papers · 1 filter

astro-ph.HE2024

The Radio Spectra of High Luminosity Compact Symmetric Objects (CSO-2s): Implications for Studies of Compact Jetted Active Galactic Nuclei

P. V. de la Parra, A. C. S Readhead, T. Herbig +18

This paper addresses, for the first time, a key aspect of the phenomenology of Compact Symmetric Objects (CSOs) -- the characteristics of their radio spectra. We present a radio-sp…

astro-ph.HE2023★ 3 cited

Compact Symmetric Objects -- II Confirmation of a Distinct Population of High-Luminosity Jetted Active Galaxies

S. Kiehlmann, A. C. S. Readhead, S. O'Neill +10

Compact Symmetric Objects (CSOs) are compact (<1 kpc), jetted Active Galactic Nuclei (AGN), whose jet axes are not aligned close to the line of sight, and whose observed emission i…

astro-ph.HE2017★ 15 cited

A Multi-band Study of the remarkable Jet in Quasar 4C+19.44

Daniel Harris, Nicholas Lee, Dan Schwartz +14

We present arc-second-resolution data in the radio, IR, optical and X-ray for 4C+19.44 (=PKS 1354+195), the longest and straightest quasar jet with deep X-ray observations. We repo…

astro-ph.HE2015★ 35 cited

Serendipitous discovery of an extended X-ray jet without a radio counterpart in a high-redshift quasar

A. Simionescu, Ł. Stawarz, Y. Ichinohe +6

A recent Chandra observation of the nearby galaxy cluster Abell 585 has led to the discovery of an extended X-ray jet associated with the high-redshift background quasar B3 0727+40…

astro-ph.HE2014★ 88 cited

Stochastic Modeling of the Fermi/LAT Gamma-ray Blazar Variability

Malgorzata A. Sobolewska, Aneta Siemiginowska, Brandon C. Kelly +1

We study the gamma-ray variability of 13 blazars observed with the Fermi Large Area Telescope (LAT). These blazars have the most complete light curves collected during the first 4…

astro-ph.HE2013★ 41 cited

Jet Emission in Young Radio Sources: a Fermi-LAT Gamma-ray View

Giulia Migliori, Aneta Siemiginowska, Brandon C. Kelly +3

We investigate the contribution of the beamed jet component to the high energy emission in young and compact extragalactic radio sources, focusing for the first time on the gamma-r…

astro-ph.HE2010★ 36 cited

A Flare in the Jet of Pictor A

H. L. Marshall, M. J. Hardcastle, M. Birkinshaw +11

A Chandra X-ray imaging observation of the jet in Pictor A showed a feature that appears to be a flare that faded between 2000 and 2002. The feature was not detected in a follow-up…