Astronomers Discover Record-Low Mass Dark Object in Distant Universe

TL;DR
A detailed VLBI observation of the gravitational lens JVAS B1938+666 led to the detection of a compact, million-solar-mass object, likely a dark matter subhalo, using advanced gravitational imaging techniques and Bayesian inference, confirming the presence of small-scale structures in the lensing galaxy.
Topics:scienceastronomy#astronomy#dark-matter-subhalo#gravitational-imaging#lens-modeling#mass-measurement#vlbi
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- Astronomers Detect Lowest Mass Dark Object Yet in Distant Universe National Radio Astronomy Observatory
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