Ultrahigh Energy Activity in Giant Magnetar Outbursts

TL;DR

This paper discusses the potential for detecting ultrahigh energy radiation, such as neutrons, neutrinos, gamma rays, and cosmic rays, from the 2004 giant magnetar outburst, highlighting its significance over cosmological gamma ray bursts.

Contribution

It evaluates the prospects of observing ultrahigh energy emissions from a giant magnetar flare, emphasizing its higher energetic potential compared to GRBs.

Findings

Enhanced likelihood of detecting UHE particles from the magnetar flare.

Comparison showing higher energy output than typical gamma ray bursts.

Discussion of recent observational data from the 2004 event.

Abstract

The recent superflare of 27 December 2004 from the magnetar SGR 1806-20 was the brightest extrasolar flash ever recorded in the modern era. The chances for seeing exotic ultrahigh energy (UHE) radiation - neutrons, neutrinos, gamma rays and charged cosmic rays - from it are far better from an energetic point of view than from cosmological gamma ray bursts (GRBs). The chances for detecting the various components are discussed in light of recent data from the 27 December event.