Islands of Electromagnetic Tranquility in Our Galactic core and Little Red Dots that Shelter Molecules and Prebiotic Chemistry

Remo Ruffini, Yu Wang

First listed 2025-09-22 | Last updated 2026-03-12

Abstract

Both the Galactic Center and little red dots (LRDs) host million-solar-mass black holes within dense, cold reservoirs of molecules associated with dust grains, and are electromagnetically tranquil. These conditions enable complex molecular chemistry and may serve as natural laboratories for prebiotic genetic evolution by allowing the synthesis of organic molecules essential for life.

Short digest

Proposes that both the Milky Way’s Sgr A*+CMZ and JWST-selected little red dots are “electromagnetically tranquil” nuclei: million-solar-mass black holes embedded in dense, cold, molecule-rich cores that are infrared-bright yet X‑ray faint. By aligning scales, gas content, and low-Eddington accretion, the paper argues these environments shield fragile molecules and permit complex organic chemistry near the nucleus. The CMZ example (e.g., nitrile-bearing cloud G+0.693−0.027) motivates the idea that similar chemistry could arise in compact LRD cores. If common, such tranquil nuclei could link early black-hole growth to the formation and delivery of prebiotic molecules in the early universe.

Key figures to inspect

• CMZ–LRD scale comparison: a schematic or size–mass panel contrasting the Milky Way’s CMZ ring around Sgr A* with parsec-scale LRD cores to see the overlap in BH mass and core radius that enables the analogy.
• SED and high-energy constraints: a plot comparing IR output and X‑ray upper limits for Sgr A* and representative LRDs, demonstrating the ‘electromagnetically tranquil’ regime (IR-bright/X‑ray-quiet).
• Molecular inventory/chemistry: a compilation figure or table highlighting CMZ detections (e.g., nitriles in G+0.693−0.027) and the inferred cold-dust fractions, to gauge which species and temperatures underpin the prebiotic-chemistry claim.
• Kinematics vs excitation: rotation curves or emission-line width panels for LRDs juxtaposed with Sgr A* vicinity, showing substantial gravitational support without strong ionization cones or winds, consistent with a low-excitation core.