Publications (101)
Detection of extended gamma-ray emission around the Geminga pulsar with H.E.S.S
H. E. S. S. Collaboration, :, F. Aharonian +165
Geminga is an enigmatic radio-quiet gamma-ray pulsar located at a mere 250 pc distance from Earth. Extended very-high-energy gamma-ray emission around the pulsar was discovered by…
Constraining the nature of the most extreme Galactic particle accelerator. H.E.S.S. observations of the microquasar V4641 Sgr
A. Acharyya, F. Aharonian, H. Ashkar +131
Microquasars have emerged as promising candidates to explain the cosmic-ray flux at petaelectronvolt energies. LHAASO observations revealed V4641~Sgr as the most extreme example so…
Modeling the Aperture of Radio Instruments for Air-Shower Detection
V. Lenok, P. Bezyazeekov, N. Budnev +21
Sparse digital antenna arrays constitute a promising detection technique for future large-scale cosmic-ray observatories. It has recently been shown that this kind of instrumentati…
Reconstruction of sub-threshold events of cosmic-ray radio detectors using an autoencoder
P. Bezyazeekov, D. Shipilov, I. Plokhikh +27
Radio detection of air showers produced by ultra-high energy cosmic rays is a cost-effective technique for the next generation of sparse arrays. The performance of this technique s…
The Tunka-Rex Experiment for the Detection of the Air-Shower Radio Emission (ARENA 2014)
Y. Kazarina, P. A. Bezyazeekov, N. M. Budnev +19
The Tunka-Rex experiment (Tunka Radio Extension) has been deployed in 2012 at the Tunka Valley (Republic of Buryatia, Russia). Its purpose is to investigate methods for the energy…
Using Binary File Format Description Languages for Documenting, Parsing, and Verifying Raw Data in TAIGA Experiment
I. Bychkov, A. Demichev, J. Dubenskaya +13
The paper is devoted to the issues of raw binary data documenting, parsing and verifying in astroparticle data lifecycle. The long-term preservation of raw data of astroparticle ex…
Evidence for gamma-ray emission from the remnant of Kepler's supernova based on deep H.E.S.S. observations
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +157
Observations with imaging atmospheric Cherenkov telescopes (IACTs) have enhanced our knowledge of nearby supernova (SN) remnants with ages younger than 500 years by establishing Ca…
A MeerKAT, e-MERLIN, H.E.S.S. and Swift search for persistent and transient emission associated with three localised FRBs
James O. Chibueze, M. Caleb, L. Spitler +156
We report on a search for persistent radio emission from the one-off Fast Radio Burst (FRB) 20190714A, as well as from two repeating FRBs, 20190711A and 20171019A, using the MeerKA…
Calibration of the absolute amplitude scale of the Tunka Radio Extension (ICRC 2015)
R. Hiller, P. A. Bezyazeekov, N. M. Budnev +20
The Tunka Radio Extension (Tunka-Rex) is an array of 44 radio antenna stations, distributed over 3 km, constituting a radio detector for air showers with an energy threshold…
Signal recognition and background suppression by matched filters and neural networks for Tunka-Rex
D. Shipilov, P. A. Bezyazeekov, N. M. Budnev +21
The Tunka Radio Extension (Tunka-Rex) is a digital antenna array, which measures the radio emission of the cosmic-ray air-showers in the frequency band of 30-80 MHz. Tunka-Rex is c…
HESS J1809193: a halo of escaped electrons around a pulsar wind nebula?
H. E. S. S. Collaboration, :, F. Aharonian +151
Context. HESS J1809193 is an unassociated very-high-energy -ray source located on the Galactic plane. While it has been connected to the nebula of the energetic pulsar PSR J…
Scrutinizing the 2020 multiwavelength outburst of PKS 0903-57 through observations with H.E.S.S
A. Acharyya, F. Aharonian, F. Ait Benkhali +138
The blazar PKS 0903-57 has recently been classified as a flat spectrum radio quasar at a redshift of . In March and April 2020, Fermi-LAT and AGILE reported tremendous ac…
Reconstruction of cosmic ray air showers with Tunka-Rex data using template fitting of radio pulses
P. A. Bezyazeekov, N. M. Budnev, D. Chernykh +22
We present an improved method for the precise reconstruction of cosmic ray air showers above eV with sparse radio arrays. The method is based on the comparison of predict…
A very-high-energy component deep in the Gamma-ray Burst afterglow
H. Abdalla R. Adam F. Aharonian F. Ait Benkhali E. O. Anguener M. Arakawa, C. Arcaro, C. Armand +219
Gamma-ray bursts (GRBs) are brief flashes of gamma rays, considered to be the most energetic explosive phenomena in the Universe. The emission from GRBs comprises a short (typicall…
Observation of a sudden cessation of a very-high-energy gamma-ray flare in PKS 1510-089 with H.E.S.S. and MAGIC in May 2016
H. E. S. S. Collaboration, H. Abdalla, R. Adam +430
The flat spectrum radio quasar (FSRQ) PKS 1510-089 is known for its complex multiwavelength behavior, and is one of only a few FSRQs detected at very high energy (VHE, GeV…
Constraining the cosmic-ray pressure in the inner Virgo Cluster using H.E.S.S. observations of M 87
H. E. S. S. Collaboration, :, F. Aharonian +160
The origin of the gamma-ray emission from M87 is currently a matter of debate. This work aims to localize the VHE (100 GeV-100 TeV) gamma-ray emission from M87 and probe a potentia…
Tunka-Rex: the Cost-Effective Radio Extension of the Tunka Air-Shower Observatory
F. G. Schröder, P. Bezyazeekov, N. M. Budnev +18
Tunka-Rex is the radio extension of the Tunka cosmic-ray observatory in Siberia close to Lake Baikal. Since October 2012 Tunka-Rex measures the radio signal of air-showers in coinc…
Time-resolved hadronic particle acceleration in the recurrent Nova RS Ophiuchi
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +171
Recurrent Novae are repeating thermonuclear explosions in the outer layers of white dwarfs, due to the accretion of fresh material from a binary companion. The shock generated by e…
Estimation of aperture of the Tunka-Rex radio array for cosmic-ray air-shower measurements
V. Lenok, P. A. Bezyazeekov, N. Budnev +21
The recent progress in the radio detection technique for air showers paves the path to future cosmic-ray radio detectors. Digital radio arrays allow for a measurement of the air-sh…
Gamma-ray observations of MAXI J1820+070 during the 2018 outburst
H. Abe, S. Abe, V. A. Acciari +439
MAXI J1820+070 is a low-mass X-ray binary with a black hole as a compact object. This binary underwent an exceptionally bright X-ray outburst from March to October 2018, showing ev…
The Tunka Radio Extension, an antenna array for high-energy cosmic-ray detection
Y. Kazarina, P. A. Bezyazeekov, N. M. Budnev +21
This article presents the first results of the combined measurements of Tunka-Rex and Tunka-Grande as well as studies of the antenna alignment effect and an overview of the recent…
Present status and prospects of the Tunka Radio Extension
D. Kostunin, P. A. Bezyazeekov, N. M. Budnev +21
The Tunka Radio Extension (Tunka-Rex) is a digital radio array operating in the frequency band of 30-80 MHz and detecting radio emission from air-showers produced by cosmic rays wi…
AI Agents for Ground-Based Gamma Astronomy
D. Kostunin, V. Sotnikov, S. Golovachev +1
Next-generation instruments for ground-based gamma-ray astronomy are marked by a substantial increase in complexity, featuring dozens of telescopes. This leap in scale introduces s…
H.E.S.S. observations of the 2021 periastron passage of PSR B1259-63/LS 2883
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +141
PSR B1259-63 is a gamma-ray binary system that hosts a pulsar in an eccentric orbit, with a 3.4 year period, around an O9.5Ve star. At orbital phases close to periastron passages,…
New insights from old cosmic rays: A novel analysis of archival KASCADE data
D. Kostunin, I. Plokhikh, M. Ahlers +7
Cosmic ray data collected by the KASCADE air shower experiment are competitive in terms of quality and statistics with those of modern observatories. We present a novel mass compos…
Discovery of a Radiation Component from the Vela Pulsar Reaching 20 Teraelectronvolts
The H. E. S. S. Collaboration, :, F. Aharonian +178
Gamma-ray observations have established energetic isolated pulsars as outstanding particle accelerators and antimatter factories in the Galaxy. There is, however, no consensus rega…
Tunka-Rex: energy reconstruction with a single antenna station (ARENA 2016)
R. Hiller, P. A. Bezyazeekov, N. M. Budnev Fedorov +21
The Tunka-Radio extension (Tunka-Rex) is a radio detector for air showers in Siberia. From 2012 to 2014, Tunka-Rex operated exclusively together with its host experiment, the air-C…
Improved measurements of the energy and shower maximum of cosmic rays with Tunka-Rex
D. Kostunin, P. A. Bezyazeekov, N. M. Budnev +22
The Tunka Radio Extension (Tunka-Rex) is an array of 63 antennas located in the Tunka Valley, Siberia. It detects radio pulses in the 30-80 MHz band produced during the air-shower…
Revisiting the PeVatron candidate MGRO J1908+06 with an updated H.E.S.S. analysis
D. Kostunin, L. Mohrmann, E. de Ona Wilhelmi +6
Detecting and studying galactic gamma-ray sources emitting very-high energy photons sheds light on the acceleration and propagation of cosmic rays presumably created in these sourc…
Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE gamma-ray observations with H.E.S.S
H. E. S. S. Collaboration, H. Abdalla, R. Adam +224
The flat spectrum radio quasar 3C 279 is known to exhibit pronounced variability in the high-energy (MeVGeV) -ray band, which is continuously monitored with Fe…
The Tunka Radio Extension (Tunka-Rex): Radio Measurements of Cosmic Rays in Siberia (PISA 2015)
F. G. Schröder, P. Bezyazeekov, N. M. Budnev +20
The Tunka observatory is located close to Lake Baikal in Siberia, Russia. Its main detector, Tunka-133, is an array of photomultipliers measuring Cherenkov light of air showers ini…
Probing the magnetic field in the GW170817 outflow using H.E.S.S. observations
H. E. S. S. Collaboration, :, H. Abdalla +230
The detection of the first electromagnetic counterpart to the binary neutron star (BNS) merger remnant GW170817 established the connection between short -ray bursts and BNS mer…
Towards the Tunka-Rex Virtual Observatory
P. Bezyazeekov, N. Budnev, O. Fedorov +21
The Tunka Radio Extension (Tunka-Rex) is a cosmic-ray detector operating since 2012. The detection principle of Tunka-Rex is based on the radio technique, which impacts data acquis…
Detector efficiency and exposure of Tunka-Rex for cosmic-ray air showers
O. Fedorov, P. A. Bezyazeekov, N. M. Budnev +22
Tunka-Rex (Tunka Radio Extension) is an antenna array for cosmic-ray detection located in Siberia. Previous studies of cosmic rays with Tunka-Rex have shown high precision in deter…
Tunka-Rex: Status and Results of the First Measurements (RICAP 2013)
D. Kostunin, N. M. Budnev, O. A. Gress +19
Tunka-Rex is the radio extension of Tunka-133 located in Siberia close to Lake Baikal. The latter is a photomultiplier array registering air-Cherenkov light from air showers induce…
Multiwavelength Observations of the Blazar PKS 0735+178 in Spatial and Temporal Coincidence with an Astrophysical Neutrino Candidate IceCube-211208A
A. Acharyya, C. B. Adams, A. Archer +207
We report on multiwavelength target-of-opportunity observations of the blazar PKS 0735+178, located 2.2 away from the best-fit position of the IceCube neutrino event IceCub…
Search for long-term variability of HESS J1745-290
H. E. S. S. Collaboration, :, A. Acharyya +116
At the center of our Galaxy lies the bright γ-ray point-like source HESS J1745-290, which is compatible in position with Sgr A star, although an association between the two remain…
Spectrum and extension of the inverse-Compton emission of the Crab Nebula from a combined Fermi-LAT and H.E.S.S. analysis
F. Aharonian, F. Ait Benkhali, J. Aschersleben +158
The Crab Nebula is a unique laboratory for studying the acceleration of electrons and positrons through their non-thermal radiation. Observations of very-high-energy rays from…
H.E.S.S. programme searching for VHE gamma rays associated with FRBs
F. Aharonian, A. Archaryya, J. Aschersleben +127
Fast Radio Bursts (FRBs) are highly energetic, extremely short-lived bursts of radio flashes. Despite extensive research, the exact cause of these outbursts remains speculative. Th…
Measurement of cosmic-ray air showers with the Tunka Radio Extension (Tunka-Rex)
P. A. Bezyazeekov, N. M. Budnev, O. A. Gress +22
Tunka-Rex is a radio detector for cosmic-ray air showers in Siberia, triggered by Tunka-133, a co-located air-Cherenkov detector. The main goal of Tunka-Rex is the cross-calibratio…
The second H.E.S.S. gamma-ray burst catalogue: 15 years of observations with the H.E.S.S. telescopes
A. Acharyya, F. Aharonian, C. Arcaro +143
Recent observational efforts using imaging atmospheric Cherenkov telescopes (IACTs) have led to firm detections of very-high-energy (VHE) signals from bright gamma-ray bursts (GRBs…
Prompt Searches for Very-High-Energy γ-Ray Counterparts to IceCube Astrophysical Neutrino Alerts
J. Abhir, A. Biland, K. Brand +817
The search for sources of high-energy astrophysical neutrinos can be significantly advanced through a multi-messenger approach, which seeks to detect the gamma rays that accompany…
Chasing Gamma-Ray Signals from Binary Neutron Star Coalescences with the Cherenkov Telescope Array: Prospects and Observing Strategies
S. Abe, J. Abhir, A. Abhishek +457
The detection of gravitational waves (GWs) from a binary neutron star (BNS) merger by Advanced LIGO and Advanced Virgo (GW170817), together with its electromagnetic counterpart, th…
The Tunka Radio Extension (Tunka-Rex): Status and First Results (ICRC 2013)
F. G. Schröder, N. M. Budnev, O. A. Gress +19
Tunka-Rex is a new radio antenna array which extends the Tunka experiment in Siberia close to lake Baikal. It consists of 20 antennas on an area of 1 km^2 which measure the radio e…
The Array Control and Data Acquisition software of the Cherenkov Telescope Array Observatory
I. Oya, B. López, P. Aubert +61
The Cherenkov Telescope Array Observatory (CTAO) aims to advance knowledge of the gamma-ray sky as the largest gamma-ray observatory ever built. The CTAO will be deployed at two si…
Development of a data infrastructure for a global data and analysis center in astroparticle physics
V. Tokareva, A. Haungs, D. Kang +4
Nowadays astroparticle physics faces a rapid data volume increase. Meanwhile, there are still challenges of testing the theoretical models for clarifying the origin of cosmic rays…
Detection of very-high-energy γ-ray emission from the colliding wind binary η Car with H.E.S.S
H. E. S. S. Collaboration, H. Abdalla, R. Adam +231
Aims. Colliding wind binary systems have long been suspected to be high-energy (HE; 100 MeV < E < 100 GeV) γ-ray emitters. η Car is the most prominent member of this object class…
Very-high-energy -ray emission from young massive star clusters in the Large Magellanic Cloud
F. Aharonian, F. Ait Benkhali, J. Aschersleben +129
The Tarantula Nebula in the Large Magellanic Cloud is known for its high star formation activity. At its center lies the young massive star cluster R136, providing a significant am…
The Tunka Radio Extension: reconstruction of energy and shower maximum of the first year data (ICRC 2015)
D. Kostunin, P. A. Bezyazeekov, N. M. Budnev +20
Since its commissioning in autumn 2012, Tunka-Rex, the radio extension of the air-Cherenkov detector Tunka-133, performed three years of air shower measurements. Currently the dete…
The Tunka-Rex antenna station (ICRC 2013)
R. Hiller, N. M. Budnev, O. A. Gress +19
Tunka-Rex is the radio extension of Tunka-133, a 1 km^2 air-Cherenkov Detector for air showers in Siberia. Tunka-Rex began operation on October 8th 2012 with 20 radio antennas. Its…
The vanishing of the primary emission region in PKS 1510-089
F. Aharonian, F. Ait Benkhali, J. Aschersleben +152
In July 2021, PKS 1510-089 exhibited a significant flux drop in the high-energy gamma-ray (by a factor 10) and optical (by a factor 5) bands and remained in this low state througho…
Resolving acceleration to very high energies along the Jet of Centaurus A
The H. E. S. S. Collaboration, :, H. Abdalla +224
The nearby radio galaxy Centaurus A belongs to a class of Active Galaxies that are very luminous at radio wavelengths. The majority of these galaxies show collimated relativistic o…
A comparison of the cosmic-ray energy scales of Tunka-133 and KASCADE-Grande via their radio extensions Tunka-Rex and LOPES
W. D. Apel, J. C. Arteaga-Velázquez, L. Bähren +73
The radio technique is a promising method for detection of cosmic-ray air showers of energies around PeV and higher with an array of radio antennas. Since the amplitude of t…
Unveiling extended gamma-ray emission around HESS J1813-178
F. Aharonian, F. Ait Benkhali, J. Aschersleben +147
HESS J1813178 is a very-high-energy -ray source spatially coincident with the young and energetic pulsar PSR J18131749 and thought to be associated with its pulsar wind n…
A deep spectromorphological study of the -ray emission surrounding the young massive stellar cluster Westerlund 1
F. Aharonian, H. Ashkar, M. Backes +156
Young massive stellar clusters are extreme environments and potentially provide the means for efficient particle acceleration. Indeed, they are increasingly considered as being res…
Radio measurements of the energy and the depth of the shower maximum of cosmic-ray air showers by Tunka-Rex
P. A. Bezyazeekov, N. M. Budnev, O. A. Gress +19
We reconstructed the energy and the position of the shower maximum of air showers with energies PeV applying a method using radio measurements performed with Tunka-…
Search for dark matter annihilation in the dwarf irregular galaxy WLM with H.E.S.S
H. E. S. S. Collaboration, H. Abdallah, R. Adam +232
We search for an indirect signal of dark matter through very high-energy gamma rays from the Wolf-Lundmark-Melotte (WLM) dwarf irregular galaxy. The pair annihilation of dark matte…
Seven years of Tunka-Rex operation
D. Kostunin, P. Bezyazeekov, N. Budnev +21
The Tunka Radio Extension (Tunka-Rex) is a digital antenna array located in the Tunka Valley in Siberia, which measures the radio emission of cosmic-ray air-showers with energies u…
Latest results of the Tunka Radio Extension (ISVHECRI2016)
D. Kostunin, P. A. Bezyazeekov, N. M. Budnev +23
The Tunka Radio Extension (Tunka-Rex) is an antenna array consisting of 63 antennas at the location of the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamm…
Search for dark matter signals towards a selection of recently-detected DES dwarf galaxy satellites of the Milky Way with H.E.S.S
H. E. S. S. Collaboration, :, H. Abdallah +227
Dwarf spheroidal galaxy satellites of the Milky Way are prime targets for indirect detection of dark matter with gamma rays due to their proximity, high dark matter content and abs…
High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S
F. Aharonian, F. Ait Benkhali, J. Aschersleben +144
Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons and positrons (CRe) at very high energies probe local cosmic-ray accelerators an…
Search for dark matter annihilation signals in the H.E.S.S. Inner Galaxy Survey
H. E. S. S. Collaboration, H. Abdalla, F. Aharonian +137
The central region of the Milky Way is one of the foremost locations to look for dark matter (DM) signatures. We report the first results on a search for DM particle annihilation s…
Very high energy -ray emission from two blazars of unknown redshift and upper limits on their distance
H. E. S. S. Collaboration, H. Abdalla, R. Adam +225
We report on the detection of very-high-energy (VHE; GeV) -ray emission from the BL Lac objects KUV 00311-1938 and PKS 1440-389 with the High Energy Stereoscopic Syst…
Quest for detection of a cosmological signal from neutral hydrogen with a digital radio array developed for air-shower measurements
D. Kostunin, P. Bezyazeekov, N. Budnev +12
Digital radio arrays are widely used for the low-frequency radio astronomy as well as for detection of air-showers induced by high-energy cosmic rays and neutrinos. Since the radio…
Gamma-Ray Constraints on Heavy Axion-Like-Particle Decays from Fermi-LAT and H.E.S.S. Blazar Spectra
A. Acharyya, F. Aharonian, M. Backes +117
The propagation of very-high-energy (VHE; GeV) gamma rays from extragalactic sources is affected by interactions with photons of the extragalactic background light…
Detection of very-high-energy gamma-ray emission from Eta Carinae during its 2020 periastron passage
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +137
The colliding-wind binary system Carinae has been identified as a source of high-energy (HE, below 100\,GeV) and very-high-energy (VHE, above 100\,GeV) gamma rays…
Combined dark matter search towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS
LAT Collaboration, S. Abdollahi, L. Baldini +586
Dwarf spheroidal galaxies (dSphs) are excellent targets for indirect dark matter (DM) searches using gamma-ray telescopes because they are thought to have high DM content and a low…
Radio detection in the multi-messenger context
D. Kostunin
The present work discusses the development of the radio technique for detection of ultra-high energy air-showers induced by cosmic radiation, and the prospects of its application i…
H.E.S.S. follow-up observations of Binary Black Hole Coalescence events during the second and third Gravitational Waves observing runs of Advanced LIGO and Advanced Virgo
H. E. S. S. collaboration, :, H. Abdalla +151
We report on the observations of four well-localized binary black hole (BBH) mergers by the High Energy Stereoscopic System (H.E.S.S.) during the second and third observing runs of…
Imporoving reconstrucion methods for radio measurements with Tunka-Rex
P. A. Bezyazeekov, N. M. Budnev, O. Fedorov +22
Tunka-Rex is detector for radio emission produced by cosmic-ray air-showers located in Siberia, triggered by Tunka-133, a co-located air-Cherenkov detector during night, and by a s…
TeV emission of Galactic plane sources with HAWC and H.E.S.S
H. Abdalla, F. Aharonian, F. Ait Benkhali +318
The High Altitude Water Cherenkov (HAWC) observatory and the High Energy Stereoscopic System (H.E.S.S.) are two leading instruments in the ground-based very-high-energy gamma-ray d…
First analysis of inclined air showers detected by Tunka-Rex
T. Marshalkina, P. A. Bezyazeekov, N. M. Budnev +22
The Tunka Radio Extension (Tunka-Rex) is a digital antenna array for the detection of radio emission from cosmic-ray air showers in the frequency band of 30 to 80 MHz and for prima…
Searching for TeV gamma-ray emission from SGR\,1935+2154 during its 2020 X-ray and radio bursting phase
H. E. S. S. Collaboration, :, H. Abdalla +251
Magnetar hyperflares are the most plausible explanation for fast radio bursts (FRB) -- enigmatic powerful radio pulses with durations of several milliseconds and high brightness te…
Curvature in the very-high energy gamma-ray spectrum of M87
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +132
The radio galaxy M87 is a variable very-high energy (VHE) gamma-ray source, exhibiting three major flares reported in 2005, 2008, and 2010. Despite extensive studies, the origin of…
Evidence of 100 TeV -ray emission from HESS J1702-420: A new PeVatron candidate
H. Abdalla, F. Aharonian, F. Ait Benkhali +232
The identification of PeVatrons, hadronic particle accelerators reaching the knee of the cosmic ray spectrum (few eV), is crucial to understand the origin of cosmic rays…
Efficiency estimation of self-triggered antenna clusters for air-shower detection
P. Bezyazeekov, O. Fedorov, Y. Kazarina +4
Air-shower radio arrays operate in low signal-to-noise ratio conditions, which complicates the autonomous measurement of air-shower signals without using an external trigger from o…
Tunka-Rex: a Radio Antenna Array for the Tunka Experiment (ARENA 2012)
F. G. Schröder, D. Besson, N. M. Budnev +21
Tunka-Rex, the Tunka radio extension, is an array of 20 antennas at the Tunka experiment close to Lake Baikal in Siberia. It started operation on 08 October 2012. The antennas are…
Reconstruction of air-shower parameters for large-scale radio detectors using the lateral distribution
D. Kostunin, P. A. Bezyazeekov, R. Hiller +3
We investigate features of the lateral distribution function (LDF) of the radio signal emitted by cosmic ray air-showers with primary energies ~EeV and its connection to air…
Advanced Signal Reconstruction in Tunka-Rex with Matched Filtering and Deep Learning
P. Bezyazeekov, N. Budnev, O. Fedorov +21
The Tunka Radio Extension (Tunka-Rex) is a digital antenna array operating in the frequency band of 30-80 MHz, measuring the radio emission of air-showers induced by ultra-high ene…
Current Status and New Challenges of The Tunka Radio Extension
V. Lenok, P. A. Bezyazeekov, N. M. Budnev +21
The Tunka Radio Extension (Tunka-Rex) is an antenna array spread over an area of about 1~km. The array is placed at the Tunka Advanced Instrument for cosmic rays and Gamma Astr…
The H.E.S.S. extragalactic sky survey with the first decade of observations
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +140
The results of the first extragalactic gamma-ray survey by the High Energy Stereoscopic System (H.E.S.S.) are presented. The survey comprises 2720 hours of very high-energy gamma-r…
H.E.S.S. follow-up observations of GRB221009A
H. E. S. S. Collaboration, :, F. Aharonian +159
GRB221009A is the brightest gamma-ray burst ever detected. To probe the very-high-energy (VHE, \!100 GeV) emission, the High Energy Stereoscopic System (H.E.S.S.) began observat…
H.E.S.S. detection of very-high-energy gamma-ray emission from the quasar PKS 0736+017
H. E. S. S. Collaboration, :, H. Abdalla +225
Flat-spectrum radio-quasars (FSRQs) are rarely detected at very-high-energies (VHE; E>100 GeV) due to their low-frequency-peaked SEDs. At present, only 6 FSRQs are known to emit VH…
Upper Limits on Very-High-Energy Gamma-ray Emission from Core-Collapse Supernovae Observed with H.E.S.S
H. E. S. S. Collaboration, :, H. Abdalla +225
Young core-collapse supernovae with dense-wind progenitors may be able to accelerate cosmic-ray hadrons beyond the knee of the cosmic-ray spectrum, and this may result in measurabl…
Tunka-Rex: Status, Plans, and Recent Results (ARENA 2016)
F. G. Schröder, P. A. Bezyazeekov, N. M. Budnev +22
Tunka-Rex, the Tunka Radio extension at the TAIGA facility (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) in Siberia, has recently been expanded to a total…
H.E.S.S. observations of composite Seyfert-starburst galaxies
H. E. S. S. Collaboration, A. Acharyya, F. Aharonian +119
Context: Composite galaxies that contain both Seyfert and starburst components may produce very high-energy (VHE; >100 GeV) gamma-ray emission at a wide range of spatial scales, fr…
TeV flaring activity of the AGN PKS 0625-354 in November 2018
H. E. S. S. Collaboration, F. Aharonian, F. Ait Benkhali +139
Most -ray detected active galactic nuclei are blazars with one of their relativistic jets pointing towards the Earth. Only a few objects belong to the class of radio galaxies o…
Observation of burst activity from SGR1935+2154 associated to first galactic FRB with H.E.S.S
D. Kostunin, H. Ashkar, F. Schüssler +1
Fast radio bursts (FRB) are enigmatic powerful single radio pulses with durations of several milliseconds and high brightness temperatures suggesting coherent emission mechanism. F…
LMC N132D: A mature supernova remnant with a power-law gamma-ray spectrum extending beyond 8 TeV
H. E. S. S. Collaboration, :, H. Abdalla +233
We analyzed 252 hours of High Energy Stereoscopic System (H.E.S.S.) observations towards the supernova remnant (SNR) LMC N132D that were accumulated between December 2004 and March…
H.E.S.S. and Fermi-LAT observations of PSR B1259-63/LS 2883 during its 2014 and 2017 periastron passages
H. E. S. S. Collaboration, H. Abdalla, R. Adam +222
PSR B1259-63/LS 2883 is a gamma-ray binary system consisting of a pulsar in an eccentric orbit around a bright Oe stellar-type companion star that features a dense circumstellar di…
Tunka-Rex Virtual Observatory
V. Lenok, O. Kopylova, D. Wochele +27
Tunka-Rex (Tunka Radio Extension) was a detector for ultra-high energy cosmic rays measuring radio emission for air showers in the frequency band of 30-80 MHz, operating in 2010s.…
Search for dark matter annihilation signals from unidentified Fermi-LAT objects with H.E.S.S
H. E. S. S. Collaboration, H. Abdallah, F. Aharonian +226
Cosmological -body simulations show that Milky Way-sized galaxies harbor a population of unmerged dark matter subhalos. These subhalos could shine in gamma-rays and be eventuall…
Background identification algorithm for future self-triggered air-shower radio arrays
S. Malakhov, P. Bezyazeekov, O. Fedorov +3
The study of the ultra-high energy cosmic rays, neutrinos and gamma rays is one of the most important challenges in astrophysics. The low fluxes of these particles do not allow one…
Observation of the gamma-ray binary HESS J0632+057 with the H.E.S.S., MAGIC, and VERITAS telescopes
C. B. Adams, W. Benbow, A. Brill +409
The results of gamma-ray observations of the binary system HESS J0632+057 collected during 450 hours over 15 years, between 2004 and 2019, are presented. Data taken with the atmosp…
An extreme particle accelerator in the Galactic plane: HESS J1826130
H. E. S. S. Collaboration, H. Abdalla, R. Adam +236
The unidentified very-high-energy (VHE; E 0.1 TeV) -ray source, HESS J1826130, was discovered with the High Energy Stereoscopic System (HESS) in the Galactic plane. The…
Tunka Advanced Instrument for cosmic rays and Gamma Astronomy
D. Kostunin, I. Astapov, P. Bezyazeekov +79
The paper is a script of a lecture given at the ISAPP-Baikal summer school in 2018. The lecture gives an overview of the Tunka Advanced Instrument for cosmic rays and Gamma Astrono…
Towards a cosmic-ray mass-composition study at Tunka Radio Extension (ARENA 2016)
D. Kostunin, P. A. Bezyazeekov, N. M. Budnev +22
The Tunka Radio Extension (Tunka-Rex) is a radio detector at the TAIGA facility located in Siberia nearby the southern tip of Lake Baikal. Tunka-Rex measures air-showers induced by…
H.E.S.S. detection of the PSR J0855-4644 nebula
F. Aharonian, H. Ashkar, M. Backes +131
HESS J0852-463 is a TeV γ-ray source located in the Galactic plane. The region consists of a supernova remnant (SNR, RX J0852.0-4622) with a shell-like morphology, commonly referr…
Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations
H. E. S. S., Fermi-LAT Collaborations, : +134
Magnetic fields in galaxies and galaxy clusters are believed to be the result of the amplification of intergalactic seed fields during the formation of large-scale structures in th…
Acceleration and transport of relativistic electrons in the jets of the microquasar SS 433
F. Aharonian, F. Ait Benkhali, J. Aschersleben +161
SS 433 is a microquasar, a stellar binary system with collimated relativistic jets. We observed SS 433 in gamma rays using the High Energy Stereoscopic System (H.E.S.S.), finding a…