ZEU-EXP/AT

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2017-11-22
16:49
[PUBDB-2017-12239] Report/Journal Article
; ; ; et al
A kilonova as the electromagnetic counterpart to a gravitational-wave source
[arXiv:1710.05841]
Nature 551, 75 - 91 (2017) [10.1038/nature24303]  GO
ddc:070
Gravitational waves were discovered with the detection of binary black-hole mergers1 and they should also be detectable from lower-mass neutron-star mergers. These are predicted to eject material rich in heavy radioactive isotopes that can power an electromagnetic signal [...]
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2017-11-22
16:07
OpenAccess [PUBDB-2017-12237] Report/Journal Article
; ; ; et al
Multi-messenger Observations of a Binary Neutron Star Merger
[LIGO-P1700294, VIR-0802A-17, arXiv:1710.05833] ddc:520
On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced Virgo detectors. The Fermi Gamma-ray Burst Monitor independently detected a gamma-ray burst (GRB 170817A) with a time delay of $\sim$1.7 s with respect to the merger time [...]
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2017-11-22
15:24
[PUBDB-2017-12233] Report/Journal Article
; ; ; et al
Discovery of Very-high-energy Emission from RGB J2243+203 and Derivation of Its Redshift Upper Limit
[arXiv:1709.05403] ddc:520
Very-high-energy (VHE; > 100 GeV) gamma-ray emission from the blazar RGB J2243+203 was discovered with the VERITAS Cherenkov telescope array, during the period between 2014 December 21 and 24. The VERITAS energy spectrum from this source can be fitted by a power law with a photon index of 4.6 ± 0.5, and a flux normalization at 0.15 TeV of $(6.3\pm 1.1)\times {10}^{-10}\,{\mathrm{cm}}^{-2}\,{{\rm{s}}}^{-1}\,{\mathrm{TeV}}^{-1}$ [...]
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2017-10-27
12:52
OpenAccess [PUBDB-2017-11591] Dissertation / PhD Thesis
; ; ; et al
The energy spectrum of cosmic electrons measured with the MAGIC telescopes
Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 157 p. (2017) [10.18452/17698] = Humboldt Universität, Dissertation, 2017  GO
This thesis seeks to further explore the origin of cosmic electrons and positrons. The unexpected excess of very-high-energy electrons above 100 GeV has been established and is now considered proof of a new class of electron sources. [...]
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2017-10-20
13:44
OpenAccess [PUBDB-2017-11473] Report/Journal Article
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3FHL: The Third Catalog of Hard Fermi -LAT Sources
[arXiv:1702.00664] ddc:520
We present a catalog of sources detected above 10 GeV by the Fermi Large Area Telescope (LAT) in the first 7 years of data using the Pass 8 event-level analysis. This is the Third Catalog of Hard Fermi-LAT Sources (3FHL), containing 1556 objects characterized in the 10 GeV–2 TeV energy range. [...]
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2017-10-20
13:35
[PUBDB-2017-11471] Journal Article
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Fermi Observations of the LIGO Event GW170104
ddc:520
We present the Fermi Gamma-ray Burst Monitor (GBM) and Large Area Telescope (LAT) observations of the LIGO binary black hole merger (BBH) event GW170104. No candidate electromagnetic counterpart was detected by either GBM or LAT. [...]
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2017-10-20
13:28
OpenAccess [PUBDB-2017-11470] Report/Journal Article
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Constraining Lorentz Invariance Violation Using the Crab Pulsar Emission Observed up to TeV Energies by MAGIC
[arXiv:1709.00346] ddc:520
Spontaneous breaking of Lorentz symmetry at energies on the order of the Planck energy or lower is predicted by many quantum gravity theories, implying non-trivial dispersion relations for the photon in vacuum. Consequently, gamma-rays of different energies, emitted simultaneously from astrophysical sources, could accumulate measurable differences in their time of flight until they reach the Earth. [...]
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2017-10-19
15:47
arXiv [PUBDB-2017-11455] Report/Journal Article
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The e-ASTROGAM mission
[arXiv:1611.02232] ddc:520
e-ASTROGAM (‘enhanced ASTROGAM’) is a breakthrough Observatory space mission, with a detector composed by a Silicon tracker, a calorimeter, and an anticoincidence system, dedicated to the study of the non-thermal Universe in the photon energy range from 0.3 MeV to 3 GeV – the lower energy limit can be pushed to energies as low as 150 keV, albeit with rapidly degrading angular resolution, for the tracker, and to 30 keV for calorimetric detection. The mission is based on an advanced space-proven detector technology, with unprecedented sensitivity, angular and energy resolution, combined with polarimetric capability. [...]
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2017-10-19
15:13
OpenAccess [PUBDB-2017-11453] Report/Journal Article
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Very-High-Energy $\gamma$-Ray Observations of the Blazar 1ES 2344+514 with VERITAS
[arXiv:1708.02829] ddc:520
We present very-high-energy $\gamma$-ray observations of the BL Lac object 1ES 2344+514 taken by the Very Energetic Radiation Imaging Telescope Array System between 2007 and 2015. 1ES 2344+514 is detected with a statistical significance above the background of 20.8σ in 47.2 h (livetime) of observations, making this the most comprehensive very-high-energy study of 1ES 2344+514 to date. [...]
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2017-08-29
09:47
Embargoed OpenAccess [PUBDB-2017-10006] Report/Journal Article
; ; ; et al
Performance of the MAGIC telescopes under moonlight
[arXiv:1704.00906] ddc:540
MAGIC, a system of two imaging atmospheric Cherenkov telescopes, achieves its best performance under dark conditions, i.e. in absence of moonlight or twilight. [...]
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