Where is the 3rd subgroup of GRBs?
classification
🌌 astro-ph
keywords
grbsintermediatesubgroupburstsdefinedduration-hardnessdurationseven
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It is shown that in the duration-hardness plane the GRBs of the third intermediate subgroup are well defined. Their durations are intermediate (i.e. roughly between 2 and 10 seconds), but their hardnesses are the lowest. They are even softer than the long bursts.
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