Low redshift calibration of the Amati relation using galaxy clusters
نویسندگان
چکیده
In this work, we use angular diameter distances of 38 galaxy clusters with joint X-ray/SZE observation to circumvent the circularity problem in Amati relation for Gamma-ray Bursts (GRBs). Assuming validity cosmic-distance duality relation, obtain luminosity distance from cluster and that calculate isotropic equivalent energy two different GRB datasets, after restricting redshift range $z<0.9$. We then check both these datasets. The best-fit parameters using as low-redshift anchors are consistent a previous estimate same dataset. intrinsic scatter which datasets is about 45% 15%, comparable found by other used vet relation.
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2022
ISSN: ['1475-7516', '1475-7508']
DOI: https://doi.org/10.1088/1475-7516/2022/10/069