69 citations · 178 across the 17 of their papers we have counts for
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Correlation between X-ray and gamma data of Swift measurements
Istvan I. Racz, Lajos G. Balazs, Istvan Horvath +1
Several studies over the last two decades have used canonical correlation analysis (CCA) to study the relationships between main γ-ray (e.g. fluence, peak flux, and duration) and m…
Gamma-Ray Bursts and Optical Brightness: Insights from Swift Satellite
Istvan I. Racz, Yasmin Nehme, Lajos G. Balazs
During the examination of optical properties of gamma-ray bursts (GRBs) measured during the life of the Neil Gehrels Swift Observatory satellite, significant discoveries were made.…
Some statistical remarks on GRBs jointly detected by Fermi and Swift satellites
Sandor Pinter, Lajos G. Balazs, Zsolt Bagoly +3
We made statistical analysis of the Fermi GBM and Swift BAT observational material, accumulated over 15 years. We studied how GRB parameters (T duration, fluence, peak flux)…
Does the GRB Duration Depend on Redshift?
I. Horvath, I. I. Racz, Z. Bagoly +2
Several hundred gamma-ray burst (GRB) redshifts have been determined to date. One of the other important properties-besides the distance-of the GRBs is the duration of the burst. I…
The Fermi GBM GRBs' multivariate statistics
Istvan I. Racz, Lajos G. Balázs, Zsolt Bagoly +2
Studying the GRBs' gamma-ray spectra may reveal some physical information of Gamma-ray Bursts. The Fermi satellite observed more than two thousand GRBs. The FERMIGBRST catalog cont…
Studying the variability of the X-ray spectral parameters of high-redshift GRBs' afterglows
Istvan I. Racz, Agnes J. Hortobagyi
The Swift satellite has observed more than a thousand GRBs with X-ray data. Almost a third of them have redshift measurement, too. Here we start to investigate the X-ray spectral f…
Gaussian-mixture-model-based cluster analysis of gamma-ray bursts in the BATSE catalog
B. G. Tóth, I. I. Rácz, I. Horváth
Clustering is an important tool to describe gamma-ray bursts (GRBs). We analyzed the Final BATSE Catalog using Gaussian-mixture-models-based clustering methods for six variables (d…
Multidimensional analysis of Fermi GBM gamma-ray bursts
I. Horvath, J. Hakkila, Z. Bagoly +4
The Fermi GBM catalog provides a large database with many measured variables that can be used to explore and verify gamma-ray burst classification results. We have used Principal C…
Statistical properties of Fermi GBM GRBs' spectra
Istvan I. Racz, Lajos G. Balázs, Istvan Horvath +2
Statistical studies of gamma-ray burst (GRB) spectra may result in important information on the physics of GRBs. The Fermi GBM catalog contains GRB parameters (peak energy, spectra…
Survival analysis of the optical brightness of GRB host galaxies
I. I. Racz, L. G. Balazs, Z. Bagoly +1
We studied the unbiased optical brightness distribution which was calculated from the survival analysis of host galaxies and its relationship with the Swift GRB data of the host ga…