Exploring the “L–σ” Relation of H ii Galaxies and Giant Extragalactic H ii Regions Acting as Standard Candles

Cosmological applications of H ii galaxies and giant extragalactic H ii regions (GEHRs) to construct the Hubble diagram at high redshifts require knowledge of the “ L – σ ” relation of the standard candles used. In this paper, we study the properties of a large sample of 156 sources (25 high- z H ii...

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