Search filters

List of works by Thomas Bretz

A 3‐Year Sample of Almost 1,600 Elves Recorded Above South America by the Pierre Auger Cosmic‐Ray Observatory

A G-APD based Camera for Imaging Atmospheric Cherenkov Telescopes

A Targeted Search for Point Sources of EeV Photons with the Pierre Auger Observatory

scientific article

A method to correct IACT data for atmospheric absorption due to the Saharan Air Layer

scientific article published in Astronomy and Astrophysics

A method to correct IACT data for atmospheric absorption due to the Saharan Air Layer

A novel camera type for very high energy gamma-ray astronomy based on Geiger-mode avalanche photodiodes

scholarly article by H Anderhub et al published 26 October 2009 in Journal of Instrumentation

A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421

scientific article published in the Astrophysical Journal

A search for very high energy gamma-ray emission from Scorpius X-1 with the magic telescopes

An Indication of Anisotropy in Arrival Directions of Ultra-high-energy Cosmic Rays through Comparison to the Flux Pattern of Extragalactic Gamma-Ray Sources

scientific article published on 2 February 2018

An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced state

scientific article published on 17 June 2020

Atmospheric Cherenkov Telescopes as a potential veto array for neutrino astronomy

scientific article published in January 2020

Azimuthal asymmetry in the risetime of the surface detector signals of the Pierre Auger Observatory

scholarly article

Black hole lightning due to particle acceleration at subhorizon scales

scientific article

Bokeh mirror alignment for Cherenkov telescopes

Bokeh mirror alignment for Cherenkov telescopes

Calibration and performance of the photon sensor response of FACT — the first G-APD Cherenkov telescope

article

Calibration of the logarithmic-periodic dipole antenna (LPDA) radio stations at the Pierre Auger Observatory using an octocopter

Combined fit of spectrum and composition data as measured by the Pierre Auger Observatory

article

Commissioning and first tests of the MAGIC telescope

article by C. Baixeras et al published February 2004 in Nuclear Instruments and Methods in Physics Research

Constraining cosmic rays and magnetic fields in the Perseus galaxy cluster with TeV observations by the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Constraints on the Steady and Pulsed Very High Energy Gamma-Ray Emission from Observations of PSR B1951+32/CTB 80 with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Contemporaneous observations of the radio galaxy NGC 1275 from radio to very high energyγ-rays

scientific article published in Astronomy and Astrophysics

Correlated X-ray and very high energy emission in the gamma-ray binary LS I +61 303

scientific article published in the Astrophysical Journal

Cosmic-Ray Anisotropies in Right Ascension Measured by the Pierre Auger Observatory

Data compression for the first G-APD Cherenkov Telescope

Data-driven estimation of the invisible energy of cosmic ray showers with the Pierre Auger Observatory

Deep observation of the NGC 1275 region with MAGIC: search of diffuseγ-ray emission from cosmic rays in the Perseus cluster

scientific article published in Astronomy and Astrophysics

Design Study of an Air Cherenkov Telescope for Efficient Air-Shower Detection at 100 TeV at the South Pole on Top of IceCube

Design and operation of FACT – the first G-APD Cherenkov telescope

scientific article (publication date: 14 June 2013)

Design and performance of the first IceAct demonstrator at the South Pole

Design concepts for the Cherenkov Telescope Array CTA: an advanced facility for ground-based high-energy gamma-ray astronomy

article by Marcos Actis et al published 23 November 2011 in Experimental Astronomy

Design constraints on Cherenkov telescopes with Davies–Cotton reflectors

Detection of VHE {gamma}-rays from HESS J0632+057 during the 2011 February X-ray outburst with the MAGIC telescopes

scholarly article

Detection of Very High Energy Radiation from the BL Lacertae Object PG 1553+113 with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Detection of bridge emission above 50 GeV from the Crab pulsar with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Detection of the {gamma}-ray binary LS I +61{deg}303 in a low-flux state at very high energy {gamma}-rays with the MAGIC telescopes in 2009

scientific article published in the Astrophysical Journal

Detection of very high energy gamma-ray emission from the gravitationally lensed blazar QSO B0218+357 with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Detection of very high energy {gamma}-ray emission from the Perseus cluster head-tail galaxy IC 310 by the MAGIC telescopes

scholarly article

Detection of very-high energyγ-ray emission from NGC 1275 by the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Discovery of TeVγ-ray emission from the pulsar wind nebula 3C 58 by MAGIC

scientific article published in Astronomy and Astrophysics

Discovery of VHEγ-ray emission from the BL Lacertae object B3 2247+381 with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Discovery of VHEγ-rays from the blazar 1ES 1215+303 with the MAGIC telescopes and simultaneous multi-wavelength observations

scientific article published in Astronomy and Astrophysics

Discovery of Very High Energy Gamma Radiation from IC 443 with the MAGIC Telescope

scientific article (publication date: 17 July 2007)

Discovery of Very High Energy Gamma Rays from 1ES 1218+30.4

scientific article published in the Astrophysical Journal

Discovery of Very High Energy γ-Ray Emission from the Low-Frequency-peaked BL Lacertae Object BL Lacertae

scientific article published in the Astrophysical Journal

Discovery of Very High Energy γ-Rays from 1ES 1011+496 atz= 0.212

scientific article published in the Astrophysical Journal

Discovery of Very High Energy γ-Rays from Markarian 180 Triggered by an Optical Outburst

scientific article published in the Astrophysical Journal

Discovery of a very high energy gamma-ray signal from the 3C 66A/B region

scientific article published in the Astrophysical Journal

Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes

scientific article published in Astronomy and Astrophysics

Discovery of very high energy {gamma}-rays from the blazar S5 0716+714

scientific article published in the Astrophysical Journal

Discovery of very high energy γ-ray emission from the blazar 1ES 0033+595 by the MAGIC telescopes

scientific article

Dynamic range measurement and calibration of SiPMs

Electronics for the camera of the First G-APD Cherenkov Telescope (FACT) for ground based gamma-ray astronomy

Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory

scholarly article

Evidence for a mixed mass composition at the ‘ankle’ in the cosmic-ray spectrum

article

Extreme HBL behavior of Markarian 501 during 2012

scholarly article

FACT - The first G-APD Cherenkov telescope (first results)

FACT - operation of the First G-APD Cherenkov Telescope

FACT – Status and experience from five years of operation of the first G-APD Cherenkov Telescope

FACT — LONGTERM MONITORING OF BRIGHT TeV BLAZARS

FACT — STATUS AND FIRST RESULTS

FACT-Tools: Streamed Real-Time Data Analysis

FACT: A novel camera for Cherenkov telescopes for ground-based gamma-ray astronomy

FACT: status and experience from four years of operation of the first G-APD Cherenkov Telescope

FACT—The first Cherenkov telescope using a G-APD camera for TeV gamma-ray astronomy

FADC signal reconstruction for the MAGIC telescope

article

FIRST NuSTAR OBSERVATIONS OF MRK 501 WITHIN A RADIO TO TeV MULTI-INSTRUMENT CAMPAIGN

scientific article (publication date: 9 October 2015)

Features of the Energy Spectrum of Cosmic Rays above 2.5×10^{18}  eV Using the Pierre Auger Observatory

scientific article published on 01 September 2020

Fermi large area telescope observations of Markarian 421: the missing piece of its spectral energy distribution

scientific article published in the Astrophysical Journal

First Avalanche-photodiode camera test (FACT): A novel camera using G-APDs for the observation of very high-energy -rays with Cherenkov telescopes

First Bounds on the High-Energy Emission from Isolated Wolf-Rayet Binary Systems

scientific article published in the Astrophysical Journal

First Bounds on the Very High Energy γ‐Ray Emission from Arp 220

scientific article published in the Astrophysical Journal

First broadband characterization and redshift determination of the VHE blazar MAGIC J2001+439

scientific article published in Astronomy and Astrophysics

First multi-wavelength campaign on the gamma-ray-loud active galaxy IC 310

scientific article published in Astronomy and Astrophysics

First study of combined blazar light curves with FACT and HAWC

Flux Upper Limit on Gamma-Ray Emission by GRB 050713a from MAGIC Telescope Observations

scientific article published in the Astrophysical Journal

G-APDs in Cherenkov astronomy: The FACT camera

Gamma-ray excess from a stacked sample of high- and intermediate-frequency peaked blazars observed with the MAGIC telescope

scientific article published in the Astrophysical Journal

High zenith angle observations of PKS 2155-304 with the MAGIC telescope

High zenith angle observations of PKS 2155-304 with the MAGIC-I telescope

scientific article published in Astronomy and Astrophysics

High-energy neutrino follow-up search of gravitational wave event GW150914 with ANTARES and IceCube

journal article from 'Physical Review D' published in 2016

Impact of atmospheric effects on the energy reconstruction of air showers observed by the surface detectors of the Pierre Auger Observatory

Implementation of the Random Forest method for the Imaging Atmospheric Cherenkov Telescope MAGIC

article

Implications of cosmological gamma-ray absorption

scientific article published in Astronomy and Astrophysics

Improving the performance of the single-dish Cherenkov telescope MAGIC through the use of signal timing

article

Inferences on mass composition and tests of hadronic interactions from 0.3 to 100 EeV using the water-Cherenkov detectors of the Pierre Auger Observatory

article

Insights into the emission of the blazar 1ES 1011+496 through unprecedented broadband observations during 2011 and 2012

scientific article published in Astronomy and Astrophysics

Insights into the high-energy {gamma}-ray emission of Markarian 501 from extensive multifrequency observations in the Fermi era

scientific article published in the Astrophysical Journal

Introducing the CTA concept

Investigating the peculiar emission from the new VHE gamma-ray source H1722+119

scholarly article

Large-scale Cosmic-Ray Anisotropies above 4 EeV Measured by the Pierre Auger Observatory

Long term VHE gamma ray monitoring of bright blazars with a dedicated Cherenkov telescope

Long-Term Monitoring of Bright Blazars in the Multi-GeV to TeV Range with FACT

Long-term monitoring of bright blazars with a dedicated Cherenkov telescope

Long-term multi-wavelength variability and correlation study of Markarian 421 from 2007 to 2009

scientific article published in Astronomy and Astrophysics

M@TE – Monitoring at TeV energies

MAGIC Observations and multiwavelength properties of the quasar 3C 279 in 2007 and 2009

scientific article published in Astronomy and Astrophysics

MAGIC Observations of Very High Energy γ-Rays from HESS J1813-178

scientific article published in the Astrophysical Journal

MAGIC Observations of the Unidentified γ-Ray Source TeV J2032+4130

scientific article published in the Astrophysical Journal

MAGIC TeV gamma-ray observations of Markarian 421 during multiwavelength campaigns in 2006

scientific article published in Astronomy and Astrophysics

MAGIC Upper Limits on the Very High Energy Emission from Gamma‐Ray Bursts

scientific article published in the Astrophysical Journal

MAGIC detection of short-term variability of the high-peaked BL Lac object 1ES 0806+524

scientific article

MAGIC detection of very high energy γ-ray emission from the low-luminosity blazar 1ES 1741+196

scientific article

MAGIC discovery of very high energy emission from the FSRQ PKS 1222+21

article

MAGIC gamma-ray and multi-frequency observations of flat spectrum radio quasar PKS 1510−089 in early 2012

scientific article published in Astronomy and Astrophysics

MAGIC gamma-ray telescope observation of the Perseus cluster of galaxies: implications for cosmic rays, dark matter, and NGC 1275

scientific article published in the Astrophysical Journal

MAGIC long-term study of the distant TeV blazar PKS 1424+240 in a multiwavelength context

scientific article published in Astronomy and Astrophysics

MAGIC observation of the GRB 080430 afterglow

scientific article published in Astronomy and Astrophysics

MAGIC observations and multifrequency properties of the flat spectrum radio quasar 3C 279 in 2011

scientific article published in Astronomy and Astrophysics

MAGIC observations of MWC 656, the only known Be/BH system

scientific article published in Astronomy and Astrophysics

MAGIC observations of PG 1553+113 during a multiwavelength campaign in July 2006

scientific article published in Astronomy and Astrophysics

MAGIC observations of the February 2014 flare of 1ES 1011+496 and ensuing constraint of the EBL density

scientific article published in Astronomy and Astrophysics

MAGIC observations of the giant radio galaxy M 87 in a low-emission state between 2005 and 2007

scientific article published in Astronomy and Astrophysics

MAGIC reveals a complex morphology within the unidentified gamma-ray source HESS J1857+026

scientific article published in Astronomy and Astrophysics

MAGIC search for VHEγ-ray emission from AE Aquarii in a multiwavelength context

scientific article published in Astronomy and Astrophysics

MAGIC upper limits for two milagro-detected bright Fermi sources in the region of SNR G65.1+0.6

scientific article published in the Astrophysical Journal

MAGIC upper limits on the GRB 090102 afterglow

scientific article

MAGIC upper limits to the VHE gamma-ray flux of 3C 454.3 in high emission state

scientific article published in Astronomy and Astrophysics

MAGIC — Roadmap to a standard analysis

article by Thomas Bretz published 2005 in AIP Conference Proceedings

MARS - CheObs ed. — A flexible Software Framework for future Cherenkov Telescopes

MARS—The Cherenkov Observatory edition

scholarly article published 2008

Magic constraints on {gamma}-ray emission from Cygnus X-3

scientific article published in the Astrophysical Journal

Measurement of the Crab Nebula spectrum over three decades in energy with the MAGIC telescopes

scholarly article published March 2015

Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy

scientific article published on 14 June 2016

Mirror position determination for the alignment of Cherenkov Telescopes

Morphological and spectral properties of the W51 region measured with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Mrk 421 active state in 2008: the MAGIC view, simultaneous multi-wavelength observations and SSC model constrained

scientific article published in Astronomy and Astrophysics

Multi-Wavelength Observations of the Blazar 1ES 1011+496 in Spring 2008

article

Multi-messenger Observations of a Binary Neutron Star Merger

scientific article published on 16 October 2017

Multi-resolution anisotropy studies of ultrahigh-energy cosmic rays detected at the Pierre Auger Observatory

Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009

scientific article published in Astronomy and Astrophysics

Multifrequency studies of the peculiar quasar 4C +21.35 during the 2010 flaring activity

scientific article published in the Astrophysical Journal

Multiwavelength (Radio, X‐Ray, and γ‐Ray) Observations of the γ‐Ray Binary LS I +61 303

scientific article published in the Astrophysical Journal

Multiwavelength observations of Mrk 501 in 2008

scientific article published in Astronomy and Astrophysics

Multiwavelength observations of a VHE gamma-ray flare from PKS 1510−089 in 2015

scientific article published in Astronomy and Astrophysics

Multiwavelength study of quiescent states of Mrk 421 with unprecedented hard X-ray coverage provided by NuSTAR in 2013

scientific article published in the Astrophysical Journal

Muon counting using silicon photomultipliers in the AMIGA detector of the Pierre Auger observatory

Normalized and asynchronous mirror alignment for Cherenkov telescopes

Observation of Gamma Rays from the Galactic Center with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Observation of VHE Gamma Radiation from HESS J1834-087/W41 with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Observation of VHE γ-rays from Cassiopeia A with the MAGIC telescope

scientific article published in Astronomy and Astrophysics

Observation of Very High Energy Gamma‐Ray Emission from the Active Galactic Nucleus 1ES 1959+650 Using the MAGIC Telescope

scientific article published in the Astrophysical Journal

Observation of Very High Energy γ‐Rays from the AGN 1ES 2344+514 in a Low Emission State with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Observation of a large-scale anisotropy in the arrival directions of cosmic rays above 8 × 1018 eV.

scientific article published in September 2017

Observation of inclined EeV air showers with the radio detector of the Pierre Auger Observatory

Observation of pulsed gamma-rays above 25 GeV from the Crab pulsar with MAGIC.

scientific article

Observation of the black widow B1957+20 millisecond pulsar binary system with the MAGIC telescopes

scientific article

Observations of Markarian 421 with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Observations of Sagittarius A* during the pericenter passage of the G2 object with MAGIC

scientific article published in Astronomy and Astrophysics

Observations of the Crab pulsar between 25 and 100 GeV with the MAGIC I telescope

scientific article published in the Astrophysical Journal

Observations of the blazar 3C 66A with the magic telescopes in stereoscopic mode

scientific article published in the Astrophysical Journal

Observations of the magnetars 4U 0142+61 and 1E 2259+586 with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Optimized dark matter searches in deep observations of Segue 1 with MAGIC

scientific article (publication date: 6 February 2014)

PG 1553+113: five years of observations with MAGIC

scientific article published in the Astrophysical Journal

Performance of the MAGIC stereo system obtained with Crab Nebula data

scholarly article

Periodic very high energy {gamma}-ray emission from LS I +61{deg}303 observed with the MAGIC telescope

scientific article published in the Astrophysical Journal

Phase-resolved energy spectra of the Crab pulsar in the range of 50–400 GeV measured with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Physics and astrophysics with a ground-based gamma-ray telescope of low energy threshold

scientific article published in January 2005

Probing quantum gravity using photons from a flare of the active galactic nucleus Markarian 501 observed by the MAGIC telescope

article

Probing the very high energy γ-ray spectral curvature in the blazar PG 1553+113 with the MAGIC telescopes

scientific article

Prospects of Silicon Photomultipliers for Ground-Based Cosmic Ray Experiments

Prototype muon detectors for the AMIGA component of the Pierre Auger Observatory

scientific article (publication date: 17 February 2016)

Radio imaging of the very-high-energy gamma-ray emission region in the central engine of a radio galaxy

scientific article published on 2 July 2009

Rapid and multiband variability of the TeV bright active nucleus of the galaxy IC 310

scientific article published in Astronomy and Astrophysics

Results of the prototype camera for FACT

Science with e-ASTROGAM

Search for High-energy Neutrinos from Binary Neutron Star Merger GW170817 with ANTARES, IceCube, and the Pierre Auger Observatory

scholarly article

Search for VHE gamma-ray emission from Geminga pulsar and nebula with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Search for VHE {gamma}-ray emission from the globular cluster M13 with the magic telescope

scientific article published in the Astrophysical Journal

Search for an extended VHEγ-ray emission from Mrk 421 and Mrk 501 with the MAGIC Telescope

scientific article published in Astronomy and Astrophysics

Search for photons with energies above 1018eV using the hybrid detector of the Pierre Auger Observatory

Search for ultrarelativistic magnetic monopoles with the Pierre Auger observatory

scholarly article

Search for very high energy gamma-ray emission from pulsar-pulsar wind nebula systems with the MAGIC telescope

scientific article published in the Astrophysical Journal

Search for very high energy gamma-rays from the z = 0.896 quasar 4C +55.17 with the MAGIC telescopes

scientific article

Searches for dark matter annihilation signatures in the Segue 1 satellite galaxy with the MAGIC-I telescope

scholarly article

Simultaneous Multiwavelength Observations of the Blazar 1ES 1959+650 at a Low TeV Flux

scientific article published in the Astrophysical Journal

Simultaneous multi-frequency observation of the unknown redshift blazar PG 1553+113 in March-April 2008

scientific article published in Astronomy and Astrophysics

Simultaneous multiwavelength observation of Mkn 501 in a low state in 2006

scientific article published in the Astrophysical Journal

Simultaneous multiwavelength observations of Markarian 421 during outburst

scientific article published in the Astrophysical Journal

Spectral calibration of the fluorescence telescopes of the Pierre Auger Observatory

Spectral energy distribution of Markarian 501: quiescent state versus extreme outburst

scientific article published in the Astrophysical Journal

Study of air-Cherenkov telescopes for harsh environments like the south pole with efficient air-shower detection below 100 TeV

scholarly article published 2017

Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity

scientific article published in May 2020

Super-orbital variability of LS I +61°303 at TeV energies

scientific article published in Astronomy and Astrophysics

Suzaku and Multi-Wavelength Observations of OJ 287 during the Periodic Optical Outburst in 2007

Systematic Search for VHE Gamma‐Ray Emission from X‐Ray–bright High‐Frequency BL Lac Objects

scientific article published in the Astrophysical Journal

Teraelectronvolt pulsed emission from the Crab Pulsar detected by MAGIC

scientific article published in Astronomy and Astrophysics

Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory

scientific article published on 31 October 2016

The 2009 multiwavelength campaign on Mrk 421: Variability and correlation studies

scientific article published in Astronomy and Astrophysics

The 2010 very high energy {gamma}-ray flare and 10 years of multi-wavelength observations of M 87

scientific article published in the Astrophysical Journal

The June 2008 flare of Markarian 421 from optical to TeV energies

scientific article published in the Astrophysical Journal

The MAGIC Telescope for Gamma-Ray Astronomy above 30 GeV

The drive system of the major atmospheric gamma-ray imaging Cherenkov telescope

scholarly article

The major upgrade of the MAGIC telescopes, Part I: The hardware improvements and the commissioning of the system

scientific article

The major upgrade of the MAGIC telescopes, Part II: A performance study using observations of the Crab Nebula

scientific article (publication date: 2016)

The simultaneous low state spectral energy distribution of 1ES 2344+514 from radio to very high energies

scientific article published in Astronomy and Astrophysics

Ultrahigh-energy neutrino follow-up of gravitational wave events GW150914 and GW151226 with the Pierre Auger Observatory

scholarly article

Unfolding of differential energy spectra in the MAGIC experiment

article

Unprecedented study of the broadband emission of Mrk 421 during flaring activity in March 2010

scientific article

Upper Limit for γ‐Ray Emission above 140 GeV from the Dwarf Spheroidal Galaxy Draco

scientific article published in the Astrophysical Journal

Upper limits on the VHE gamma-ray emission from the Willman 1 satellite galaxy with the MAGIC telescope

scientific article published in the Astrophysical Journal

VHE γ‐Ray Observation of the Crab Nebula and its Pulsar with the MAGIC Telescope

scientific article published in the Astrophysical Journal

Variable Very High Energy γ‐Ray Emission from Markarian 501

scientific article published in the Astrophysical Journal

Variable Very-High-Energy Gamma-Ray Emission from the Microquasar LS I +61 303

scientific article (publication date: 23 June 2006)

Very High Energy Gamma-Ray Observations of Strong Flaring Activity in M87 in 2008 February

scientific article published in the Astrophysical Journal

Very High Energy Gamma-Ray Radiation from the Stellar Mass Black Hole Binary Cygnus X-1

scientific article published in the Astrophysical Journal

Very high energy gamma-ray observation of the peculiar transient event Swift J1644+57 with the MAGIC telescopes and AGILE

scientific article published in Astronomy and Astrophysics

Very high energy {gamma}-rays from the universe's middle age: detection of the z = 0.940 blazar PKS 1441+25 with MAGIC

scientific article

Very high-energyγ-ray observations of novae and dwarf novae with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics

Very-high-energy gamma rays from a distant quasar: how transparent is the universe?

scientific article

Very-high-energy gamma-ray observations of the Type Ia Supernova SN 2014J with the MAGIC telescopes

scientific article published in Astronomy and Astrophysics