Full Sky Map of Bright Quasars

Full-sky map of all measurements of the fine-structure constant along the line of sight of bright quasars, in early 2019. Overall there is a 3.5 sigma statistical preference for a dipolar spatial variation. The preferred direction of maximal variation is inside the solid red line, and the dashed blue line depicts the equator of the dipole.

Credit:
Mike Wilczynska and John K. Webb

About the Image

Id:full-sky-map-bright-quasars
Type:Chart
Release date:30 September 2020, 13:53
Size:1058 x 595 px

About the Object

Type:Unspecified : Technology : Observatory : Instrument
Category:ELT
Illustrations

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Large JPEG
131.5 KB
Screensize JPEG
117.5 KB