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Norman A. Grogin

2 articles · 30 co-authors · latest: 2026-07-02

Red Eyes: Cosmic Lens Reveals a Pair of Black Holes

Using a gravitational lens — a massive cluster of galaxies bending light — the James Webb Space Telescope detected two red dots in a distant galaxy. These are intermediate-mass black holes, located not in the center but on the outskirts. The discovery suggests such invisible objects might be widespr
arXiv:2601.06015v1 · 2026-01-09

Cosmic Cocoons: MEOW's Infrared Hunt Reveals the Secret Growth of Black Holes

In a new study presented in the MEOW survey, astronomers used the MIRI infrared camera on the James Webb Space Telescope to search for dust-obscured active galactic nuclei from an era when the Universe was less than a billion years old. Analyzing the emission from hot dust allowed them to identify 1
arXiv:2607.02666v1 · 2026-07-02