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Circinus Galaxy

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Webb sharpens its view of a black hole's dusty feeding disk
space2 months 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.

JWST captures sharp image of Circinus black hole’s feeding disk
space2 months ago

JWST captures sharp image of Circinus black hole’s feeding disk

The James Webb Space Telescope’s interferometric imaging provides the sharpest view yet of Circinus galaxy’s center, revealing that the infrared glow around its supermassive black hole mainly originates from the dusty accretion disk feeding the hole rather than outflows, a finding that sheds light on how such black holes grow and influence their host galaxies.

Webb Reveals Dust Feeding Circinus Black Hole, Upending Core Emission Views
space2 months ago

Webb Reveals Dust Feeding Circinus Black Hole, Upending Core Emission Views

Webb’s Aperture Masking Interferometer on NIRISS allowed a high‑contrast look at Circinus’ core, yielding the sharpest view yet of a black hole’s surroundings. The study finds roughly 87% of the near‑infrared emission comes from hot dust near the black hole’s torus rather than from outflows, overturning decades of models that emphasized outflows. This marks the first extragalactic infrared interferometry in space and demonstrates Webb’s ability to double effective resolution in a focused region, offering a technique to study other bright black holes and build a broader picture of accretion versus outflow contributions.