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Cloud ablation by a relativistic jet and the extended flare in CTA 102 in 2016 and 2017
(IOP, 2017)
In late 2016 and early 2017, the flat spectrum radio quasar CTA 102 exhibited a very strong and long-lasting
outburst. The event can be described by a roughly two-month long increase of the baseline flux in the monitored
energy ...
Prospects for Cherenkov Telescope Array observations of the young supernova remnant RX J1713.7−3946
(AAS, 2017)
We perform simulations for future Cherenkov Telescope Array (CTA) observations of RX J1713.7−3946, a young supernova remnant (SNR) and one of the brightest sources ever discovered in very high energy (VHE) gamma rays. ...
TeV gamma-ray observations of the binary neutron star merger GW170817 with H.E.S.S.
(IOP Publishing, 2017)
We search for high-energy gamma-ray emission from the binary neutron star merger GW170817 with the H.E.S.S.
Imaging Air Cherenkov Telescopes. The observations presented here have been obtained starting only 5.3 hr ...
Centaurus A: hard X-ray and soft gamma-ray lightcurve correlation
(Sissa Medialab, 2017)
Centaurus A (Cen A), powered by a 55 million solar mass supermassive black hole, has been intensively monitored in all accessible wavelength ranges of the electromagnetic spectrum. However, its gamma-ray flux, both in the ...
Measurement of the EBL spectral energy distribution using the VHE γ-ray spectra of H.E.S.S. blazars
(EDP Sciences, 2017)
Very high-energy γ rays (VHE, E ≳ 100 GeV) propagating over cosmological distances can interact with the low-energy photons of the extragalactic background light (EBL) and produce electron-positron pairs. The transparency ...
Relativistic jets in active galactic nuclei and microquasars
(Springer, 2017)
Collimated outflows (jets) appear to be a ubiquitous phenomenon associated with the accretion of material onto a compact object. Despite this ubiquity, many fundamental physics aspects of jets are still poorly understood ...
The orbit of the gamma-ray binary 1FGL J1018.6−5856
(IOP, 2017)
Gamma-ray binaries are a small subclass of the high mass X-ray binary population that exhibit emission across the whole electromagnetic spectrum. We present the radial velocities of 1FGL J1018.6−5856 based on the observations ...
A polarized fast radio burst at low Galactic latitude
(Oxford Univ Press, 2017)
We report on the discovery of a new fast radio burst (FRB), FRB 150215, with the Parkes
radio telescope on 2015 February 15. The burst was detected in real time with a dispersion
measure (DM) of 1105.6 ± 0.8 pc cm−3, a ...
Characterizing the γ-ray long-term variability of PKS 2155-304 with H.E.S.S. and Fermi-LAT
(EDP Sciences, 2017)
Studying the temporal variability of BL Lac objects at the highest energies provides unique insights into the extreme physical processes occurring in relativistic jets and in the vicinity of super-massive black holes. To ...
Gamma-ray blazar spectra with H.E.S.S. II mono analysis: the case of PKS 2155-304 and PG 1553+113
(EDP Sciences, 2017)
Context. The addition of a 28 m Cherenkov telescope (CT5) to the H.E.S.S. array extended the experiment’s sensitivityto lower energies. The lowest energy threshold is obtained using monoscopic analysis of data taken with ...