Search
Now showing items 21-30 of 106
HESS J1640-465: an exceptionally luminous TeV γ-ray supernova remnant
(Oxford Univ Press, 2014)
The results of follow-up observations of the TeV γ-ray source HESS J1640−465 from 2004 to 2011 with the High Energy Stereoscopic System (HESS) are reported in this work. The spectrum is well described by an exponential ...
TeV γ-ray observations of the young synchrotron-dominated SNRs G1.9+0.3 and G330.2+1.0 with H.E.S.S.
(Oxford Univ Press, 2014)
The nonthermal
nature of the Xray
emission from the shelltype
supernova remnants (SNRs)
G1.9+0.3 and G330.2+1.0 is an indication of intense particle acceleration in the shock fronts
of both objects. This suggests that ...
The polarization dependence of γγ absorption - implications for γ-ray bursts and blazars
(IOP Publishing, 2014)
This paper presents an analysis of the dependence of the opacity for high-energy γ-rays to γγ absorption by low-energy photons on the polarization of the γ-ray and target photons. This process has so far only been considered ...
HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays
(EDP Sciences, 2014)
Composite supernova remnants (SNRs) constitute a small subclass of the remnants of massive stellar explosions where non-thermal radiation
is observed from both the expanding shell-like shock front and from a pulsar wind ...
Long-term monitoring of PKS2155-304 with ATOM and H.E.S.S.: investigation of optical/y-ray correlations in different spectral states
(EDP Sciences, 2014)
In this paper we report on the analysis of all the available optical and very high-energy
y-ray (>200 GeV) data for the BL Lac object PKS 2155-304,
collected simultaneously with the ATOM and H.E.S.S. telescopes from ...
Search for TeV Gamma-ray emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S.
(EDP Sciences, 2014)
The long gamma-ray burst (GRB) 100621A, at the time the brightest X-ray transient ever detected by Swift-XRT in the 0:3–10 keV range, has
been observed with the H.E.S.S. imaging air Cherenkov telescope array, sensitive ...
Long-term TeV and X-ray observations of the gamma-ray binary HESS J0632+057
(IOP Publishing, 2014)
HESS J0632+057 is the only gamma-ray binary known so far whose position in the sky allows observations
with ground-based observatories in both the northern and southern hemispheres. Here we report on long-term
observations ...
Multiband optical-NIR variability of blazars on diverse time-scales
(Oxford University Press, 2015)
To search for optical variability on awide range of time-scales,we have carried out photometric
monitoring of two flat spectrum radio quasars, 3C 454.3 and 3C 279, plus one BL Lac,
S5 0716+714, all of which have been ...
The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey
(EDP Sciences, 2018)
The nine-year H.E.S.S. Galactic Plane Survey (HGPS) has yielded the most uniform observation scan of the inner Milky Way in the TeV gamma-ray band to date. The sky maps and source catalogue of the HGPS allow for a systematic ...
The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT
(EDP Sciences, 2018)
The supernova remnant (SNR) W49B originated from a core-collapse supernova that occurred between one and four thousand years ago, and subsequently evolved into a mixed-morphology remnant, which is interacting with molecular ...