Search Results - "Hadasch, D."
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A Cocoon of Freshly Accelerated Cosmic Rays Detected by Fermi in the Cygnus Superbubble
Published in Science (American Association for the Advancement of Science) (25-11-2011)“…The origin of Galactic cosmic rays is a century-long puzzle. Indirect evidence points to their acceleration by supernova Shockwaves, but we know little of…”
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LONG-TERM MONITORING OF THE HIGH-ENERGY γ-RAY EMISSION FROM LS I +61°303 AND LS 5039
Published in The Astrophysical journal (10-04-2012)“…The Fermi Large Area Telescope (LAT) reported the first definitive GeV detections of the binaries LS I +61[degrees]303 and LS 5039 in the first year after its…”
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3
A technique for estimating the absolute gain of a photomultiplier tube
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-06-2018)“…Detection of low-intensity light relies on the conversion of photons to photoelectrons, which are then multiplied and detected as an electrical signal. To…”
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Deep Chandra observations of TeV binaries - II. LS5039
Published in Monthly notices of the Royal Astronomical Society (11-09-2011)“…ABSTRACT We report on Chandra observations of the TeV-emitting high-mass X-ray binary LS5039, for a total exposure of 70ks, using the ACIS-S camera in…”
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Gamma-ray signatures of cosmic ray acceleration, propagation, and confinement in the era of CTA
Published in Astroparticle physics (01-03-2013)“…► We describe the impact that CTA is expected to have in cosmic ray studies. ► Population studies of supernova remnants will be possible. ► CTA will study the…”
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Deep Chandra observations of TeV binaries - II. LS 5039
Published in Monthly notices of the Royal Astronomical Society (01-09-2011)“…We report on Chandra observations of the TeV-emitting high-mass X-ray binary LS 5039 , for a total exposure of ∼70 ks, using the ACIS-S camera in continuous…”
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The missing GeV -ray binary: searching for HESS J0632+057 with Fermi-LAT
Published in Monthly notices of the Royal Astronomical Society (21-11-2013)“…The very high energy (VHE; >100 GeV) source HESS J0632+057 has been recently confirmed as a ...-ray binary, a subclass of the high-mass X-ray binary…”
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Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114C
Published in Physical review letters (10-07-2020)“…On January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever…”
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Detection of the Characteristic Pion-Decay Signature in Supernova Remnants
Published in Science (American Association for the Advancement of Science) (15-02-2013)“…Cosmic rays are particles (mostly protons) accelerated to relativistic speeds. Despite wide agreement that supernova remnants (SNRs) are the sources of…”
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Fermi-LAT Observations of the Gamma-Ray Burst GRB 130427A
Published in Science (American Association for the Advancement of Science) (03-01-2014)“…The observations of the exceptionally bright gamma-ray burst (GRB) 130427A by the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope provide…”
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The Imprint of the Extragalactic Background Light in the Gamma-Ray Spectra of Blazars
Published in Science (American Association for the Advancement of Science) (30-11-2012)“…The light emitted by stars and accreting compact objects through the history of the universe is encoded in the intensity of the extragalactic background light…”
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Monitoring of the radio galaxy M 87 during a low-emission state from 2012 to 2015 with MAGIC
Published in Monthly notices of the Royal Astronomical Society (11-03-2020)“…ABSTRACT M 87 is one of the closest (z = 0.004 36) extragalactic sources emitting at very high energies (VHE, E > 100 GeV). The aim of this work is to locate…”
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Constraining very-high-energy and optical emission from FRB 121102 with the MAGIC telescopes
Published in Monthly notices of the Royal Astronomical Society (01-12-2018)“…Fast radio bursts (FRBs) are bright flashes observed typically at GHz frequencies with millisecond duration, whose origin is likely extragalactic. Their nature…”
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Fermi LAT observations of cosmic-ray electrons from 7 GeV to 1 TeV
Published in Physical review. D, Particles, fields, gravitation, and cosmology (18-11-2010)“…We present the results of our analysis of cosmic-ray electrons using about 8 × 106 electron candidates detected in the first 12 months on-orbit by the Fermi…”
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Constraints on VHE gamma-ray emission of flat spectrum radio quasars with the MAGIC telescopes
Published in Monthly notices of the Royal Astronomical Society (07-11-2024)“…ABSTRACT Flat spectrum radio quasars (FSRQs) constitute a class of jetted active galaxies characterized by a very luminous accretion disc, prominent and…”
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Binary Millisecond Pulsar Discovery via Gamma-Ray Pulsations
Published in Science (American Association for the Advancement of Science) (07-12-2012)“…Millisecond pulsars, old neutron stars spun up by accreting matter from a companion star, can reach high rotation rates of hundreds of revolutions per second…”
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The variability patterns of the TeV blazar PG 1553 + 113 from a decade of MAGIC and multiband observations
Published in Monthly notices of the Royal Astronomical Society (23-03-2024)“…ABSTRACT PG 1553 + 113 is one of the few blazars with a convincing quasi-periodic emission in the gamma-ray band. The source is also a very high energy (VHE;…”
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The First Pulse of the Extremely Bright GRB 130427A: A Test Lab for Synchrotron Shocks
Published in Science (American Association for the Advancement of Science) (03-01-2014)“…Gamma-ray burst (GRB) 130427A is one of the most energetic GRBs ever observed. The initial pulse up to 2.5 seconds is possibly the brightest well-isolated…”
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Deep optical observations of the γ-ray pulsar PSR J0007+7303 in the CTA 1 supernova remnant
Published in Monthly notices of the Royal Astronomical Society (01-04-2013)“…The Fermi Large Area Telescope discovered the time signature of a radio-silent pulsar coincident with RX J0007.0+7302, a plerion-like X-ray source at the…”
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Deep observations of the globular cluster M15 with the MAGIC telescopes
Published in Monthly notices of the Royal Astronomical Society (01-04-2019)Get full text
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