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Dusty Torus

All articles tagged with #dusty torus

Webb sharpens its view of a black hole's dusty feeding disk
space5 hours ago

Webb sharpens its view of a black hole's dusty feeding disk

JWST’s high-contrast observations of the Circinus galaxy reveal the clearest view yet of the dusty torus feeding its central supermassive black hole. About 87% of the infrared emission comes from the inner disk near the hole, less than 1% from the outflow known as the North Arc, and ~12% from dust farther out. The findings, based on two 2024–2025 Webb observations using a seven‑aperture setup, provide an effective resolution like a 13‑meter telescope and challenge decades of outflow‑driven infrared models, confirming the torus as the primary fuel reservoir for black hole growth. The study was published Jan. 13 in Nature Communications.

Quasars Concealed within Host Galaxies: New Research Reveals
astronomy2 years ago

Quasars Concealed within Host Galaxies: New Research Reveals

New research challenges the prevailing idea that quasars are only obscured by donut-shaped rings of dust in their immediate surroundings. A study led by Durham University found evidence that in some quasars, the obscuration is entirely caused by the host galaxy itself. These quasars reside in compact "starburst galaxies" with intense rates of star formation, where clouds of gas and dust can completely hide the quasar. This phenomenon occurs during an intense growth spurt of the quasar and provides insights into the link between galaxy growth and black hole activity. Unveiling these buried quasars will help scientists understand the connection between galaxies and supermassive black holes.