102 citations · 530 across the 39 of their papers we have counts for
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The peak-flux of GRB 221009A measured with GRBAlpha
Jakub Ripa, Hiromitsu Takahashi, Yasushi Fukazawa +42
The brightest gamma-ray burst ever observed, long-duration GRB 221009A, was detected by GRBAlpha nano-satellite without saturation. We present light curves of the prompt emission i…
Localisation of gamma-ray bursts from the combined SpIRIT+HERMES-TP/SP nano-satellite constellation
Matt Thomas, Michele Trenti, Riccardo Campana +24
Multi-messenger observations of the transient sky to detect cosmic explosions and counterparts of gravitational wave mergers critically rely on orbiting wide-FoV telescopes to cove…
Analysis of a Tau Neutrino Origin for the Near-Horizon Air Shower Events Observed by the Fourth Flight of the Antarctic Impulsive Transient Antenna (ANITA)
R. Prechelt, S. A. Wissel, A. Romero-Wolf +65
We study in detail the sensitivity of the Antarctic Impulsive Transient Antenna (ANITA) to possible point source fluxes detected via -lepton-induced air showers. This inve…
Timing techniques applied to distributed modular high-energy astronomy: the HERMES project
A. Sanna, A. F. Gambino, L. Burderi +15
The HERMES-TP/SP (High Energy Rapid Modular Ensemble of Satellites -- Technologic and Scientific Pathfinder) is an in-orbit demonstration of the so-called distributed astronomy con…
The HERMES-Technologic and Scientific Pathfinder
F. Fiore, L. Burderi, M. Lavagna +12
HERMES-TP/SP (High Energy Rapid Modular Ensemble of Satellites Technologic and Scientific Pathfinder) is a constellation of six 3U nano-satellites hosting simple but innovative X-r…
A search for ultrahigh-energy neutrinos associated with astrophysical sources using the third flight of ANITA
C. Deaconu, L. Batten, P. Allison +60
The ANtarctic Impulsive Transient Antenna (ANITA) long-duration balloon experiment is sensitive to interactions of ultra high-energy (E > 10^{18} eV) neutrinos in the Antarctic ice…
Gamma-ray bursts: A brief survey of the diversity
Attila Mészáros, Jakub Řípa
The separation of the gamma-ray bursts (GRBs) into short/hard and long/soft subclasses, respectively, is well supported both theoretically and observationally. The long ones are co…
The analogy of K-correction in the topic of gamma-ray bursts
Levente Borvák, Attila Mészáros, Jakub Řípa
It is well-known that there are two types of gamma-ray bursts (GRBs): short/hard and long/soft ones, respectively. The long GRBs are coupled to supernovae, but the short ones are a…
Constraints on the ultra-high energy cosmic neutrino flux from the fourth flight of ANITA
P. W. Gorham, P. Allison, O. Banerjee +57
The ANtarctic Impulsive Transient Antenna (ANITA) NASA long-duration balloon payload completed its fourth flight in December 2016, after 28 days of flight time. ANITA is sensitive…
Update on Testing the Isotropy of the Properties of Gamma-Ray Bursts
Jakub Řípa, Arman Shafieloo
Previously we proposed a novel method to inspect the isotropy of the properties of gamma-ray bursts (GRBs) such as their duration, fluences and peak fluxes at various energy bands…
Testing Isotropic Universe Using the Gamma-Ray Burst Data of Fermi / GBM
Jakub Ripa, Arman Shafieloo
The sky distribution of Gamma-Ray Bursts (GRBs) has been intensively studied by various groups for more than two decades. Most of these studies test the isotropy of GRBs based on t…
Summary of Parallel Session: "Relativistic and Particle Astrophysics"
Jakub Ripa
The parallel session on "Relativistic and Particle Astrophysics" was held on 14th December 2015. Here a short summary of each presentation of this parallel session is given.
Gamma-ray bursts and their relation to astroparticle physics and cosmology
Jakub Ripa
This article gives an overview of gamma-ray bursts (GRBs) and their relation to astroparticle physics and cosmology. GRBs are the most powerful explosions in the universe that occu…
Testing and Performance of UFFO Burst Alert & Trigger Telescope
J. Ripa, M. B. Kim, J. Lee +26
The Ultra-Fast Flash Observatory pathfinder (UFFO-p) is a new space mission dedicated to detect Gamma-Ray Bursts (GRBs) and rapidly follow their afterglows in order to provide earl…
Cosmological effects on the observed flux and fluence distributions of gamma-ray bursts
Jakub Ripa, Attila Meszaros, Felix Ryde
Several claims have been put forward that an essential fraction of long-duration BATSE gamma-ray bursts should lie at redshifts larger than 5. This point-of-view follows from the n…
On the Spectral Lags and Peak-Counts of the Gamma-Ray Bursts Detected by the RHESSI Satellite
Jakub Ripa, Attila Meszaros, Peter Veres +1
A sample of 427 gamma-ray bursts from a database (February 2002 - April 2008) of the RHESSI satellite is analyzed statistically. The spectral lags and peak-count rates, which have…
Statistical Analysis of the Observable Data of Gamma-Ray Bursts
Jakub Ripa
Gamma-ray bursts are still not fully understood events. However, their exploration could provide a useful tool for a better understanding of the early Universe because they belong…
A comparison of the fluences and photon peak fluxes for the Swift and RHESSI gamma-ray bursts
D. Huja, J. Ripa, A. Meszaros
Fluences and photon peak fluxes of the gamma-ray bursts (GRBs) detected by the Swift and RHESSI satellites are graphically compared.
Rising indications for three gamma-ray burst groups
J. Ripa, D. Huja, A. Meszaros +1
Several papers were written about the gamma-ray burst (GRBs) groups. Our statistical study is based on the durations and hardness ratios of the Swift and RHESSI data.
How the RHESSI gamma-ray burst measurements have been affected by the annealing procedure?
J. Ripa, P. Veres, C. Wigger
The performance of the nine RHESSI germanium detectors has been gradually deteriorating since its launch in 2002 because of radiation damage. To restore its former sensitivity, the…
A Search for the Intermediate Subgroup of Gamma-Ray Bursts in the Swift Dataset
D. Huja, J. Ripa
We have searched for the third, 'intermediate', subgroup of gamma-ray bursts among nearly 400 gamma-ray bursts observed by the Swift satellite. The standard chi^2 method and F-test…
Gamma-Ray Burst Classes Found in the RHESSI Data Sample
J. Ripa, C. Wigger, D. Huja +1
A sample of 427 gamma-ray bursts (GRBs), measured by the RHESSI satellite, is studied statistically to determine the number of GRB groups. Previous studies based on the BATSE Catal…
Statistical analysis of RHESSI GRB database
J. Ripa, R. Hudec, A. Meszaros +2
The Gamma-ray burst (GRB) database based on the data by the RHESSI satellite provides a unique and homogeneous database for future analyses. Here we present preliminary results on…
A comparison of the gamma-ray bursts detected by BATSE and Swift
D. Huja, A. Meszaros, J. Ripa
The durations of 388 gamma-ray bursts, detected by the Swift satellite, are studied statistically in order to search for their subgroups. Then the results are compared with the res…