Extended Data Fig. 3: Constraints on the distance scale of GRB 211211A.
From: A nearby long gamma-ray burst from a merger of compact objects
The near infrared brightness of GRB host galaxies (short GRBs: squares; long GRBs: circles) is reported as a function of their redshift. For comparison, a randomly selected sample of field galaxies from the CANDELS survey74 is shown in the background (octagons, with the symbol size proportional to the galaxy mass). The non-detection of an underlying galaxy in deep HST F160W imaging rules out most of the parameter space occupied by GRB hosts (hatched area). Additional constraints from the UV and X-ray afterglow rule out the case of a GRB in a distant (z > 1.5; shaded areas) faint galaxy. These observations support the physical association between GRB 211211A and the nearby galaxy at z = 0.0762 (star symbol). Upper limits (downward triangles) are 3σ.
