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8 papers · 2 filters
Particle diffusion and localized acceleration in inhomogeneous AGN jets - Part I: Steady-state spectra
Xuhui Chen, Martin Pohl, Markus Boettcher
We study the acceleration, transport, and emission of particles in relativistic jets. Localized stochastic particle acceleration, spatial diffusion, and synchrotron as well as sync…
Zooming In on the Progenitors of Superluminous Supernovae With the HST
R. Lunnan, R. Chornock, E. Berger +25
We present Hubble Space Telescope (HST) rest-frame ultraviolet imaging of the host galaxies of 16 hydrogen-poor superluminous supernovae (SLSNe), including 11 events from the Pan-S…
Probing cluster environments of blazars through gamma-gamma absorption
Iurii Sushch, Markus Böttcher
Most blazars are known to be hosted in giant elliptic galaxies, but their cluster environments have not been thoroughly investigated. Cluster environments may contain radiation fie…
Pair Cascades in the Disk Environment of the Binary System PSR B1259-63/LS 2883
Iurii Sushch, Markus Böttcher
PSR B1259-63/LS 2883 is a very high energy (VHE; GeV) γ-ray emitting binary consisting of a 48 ms pulsar orbiting around a Be star with a period of years. The B…
Time Dependent Leptonic Modeling of Fermi II Processes in the Jets of Flat Spectrum Radio Quasars
Christopher Diltz, Markus Boettcher
In this paper, we discuss the light-curve features of various flaring scenarios in a time-dependent leptonic model for low-frequency-peaked blazars. The quasar 3C273 is used as an…
How gravitational lensing helps gamma-ray photons avoid absorption
Anna Barnacka, Markus Bottcher, Iurii Sushch
We investigate potential absorption of gamma-ray emission from blazars arising from inhomogeneities along the line of sight, beyond the diffuse Extragalactic Background Light…