How certain is the distance to the most luminous supernova?

TL;DR

This paper examines the uncertainty in the distance measurement to the most luminous supernova, considering potential discrepancies in the galaxy cluster distance estimates and their implications.

Contribution

It discusses evidence suggesting the Perseus Cluster may be ten times closer than redshift-based estimates, impacting supernova luminosity calculations.

Findings

The supernova exceeds typical luminosity by over two orders of magnitude.

The Perseus Cluster may be significantly closer than previously thought.

Distance uncertainties affect supernova luminosity assessments.

Abstract

A recent supernova has been reported as exceeding ``the light output of an ordinary supernova by at least two orders of magnitude''. It is noted that it falls in a minor galaxy in the Perseus Cluster. Some evidence indicating a ten times closer distance for the Perseus Cluster than its redshift distance is discussed here.