Heliospheric plasma lensing and ENA contamination bias local distance-ladder photometry, accounting for a realistic 3–8 % of the Hubble tension after anisotropy and calibration effects.
Measuring cosmological parameters with Gamma Ray Bursts,
2 Pith papers cite this work, alongside 91 external citations. Polarity classification is still indexing.
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abstract
In a few dozen seconds gamma ray bursts (GRBs) emit up to 10^54 erg in terms of an equivalent isotropically radiated energy Eiso, so they can be observed up to z ~10. Thus, these phenomena appear to be very promising tools to describe the expansion rate history of the universe. Here we review the use of the Ep,i - Eiso correlation of GRBs to measure the cosmological density parameter Omega_M. We show that the present data set of Gamma-Ray Bursts, coupled with the assumption that we live in a flat universe, can provide independent evidence, from other probes, that Omega_M ~0.3. We show that current (e.g., Swift, Fermi/GBM, Konus-WIND) and forthcoming GRB experiments (e.g., CALET/GBM, SVOM, Lomonosov/UFFO, LOFT/WFM) will allow us to constrain Omega_M with an accuracy comparable to that currently exhibited by Type Ia supernovae and to study the properties of dark energy and their evolution with time.
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2026 2representative citing papers
A bias-controlled quasar sample of ~2000 objects demonstrates that the X-ray-to-UV luminosity relation remains constant from redshift 0.7 to 5.
citing papers explorer
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Systematic Light Propagation Bias from the Heliosphere and Its Impact on the Hubble Tension
Heliospheric plasma lensing and ENA contamination bias local distance-ladder photometry, accounting for a realistic 3–8 % of the Hubble tension after anisotropy and calibration effects.
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The X-ray-to-UV relation does not evolve in homogeneous quasar samples
A bias-controlled quasar sample of ~2000 objects demonstrates that the X-ray-to-UV luminosity relation remains constant from redshift 0.7 to 5.