Spitzer observations of the dusty warped disk of Centaurus A

Details Spitzer observations of the dusty warped disk of Centaurus A Spitzer observations of the dusty warped disk of Centaurus A

2006-01-06

arxiv.org/abs/astro-ph/0601135v1

Astrophys.J. 645 (2006) 1092-1101

Astronomy and Astrophysics

Astrophysics

submitted to ApJ

Scientific paper

10.1086/504418

Spitzer mid-infrared images of the dusty warped disk in the galaxy Centaurus A show a parallelogram-shaped structure. We successfully model the observed mid-infrared morphology by integrating the light from an emitting, thin, and warped disk, similar to that inferred from previous kinematic studies. The models with the best match to the morphology lack dust emission within the inner 0.1 to 0.8 kpc, suggesting that energetic processes near the nucleus have disturbed the inner molecular disk, creating a gap in the molecular gas distribution.

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