SpitzerObservations of the Dusty Warped Disk of Centaurus A | Zendy

Alice C. Quillen | Zendy; M. H. Brookes | Zendy; Jocelyn Keene | Zendy; Daniel Stern | Zendy; Charles Lawrence | Zendy; M. W. Werner | Zendy

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SpitzerObservations of the Dusty Warped Disk of Centaurus A

Author(s) -

Alice C. Quillen,

M. H. Brookes,

Jocelyn Keene,

Daniel Stern,

Charles Lawrence,

M. W. Werner

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/504418

Subject(s) - physics , astrophysics , centaurus a , galaxy , astronomy , thick disk , spectral energy distribution , parallelogram , active galactic nucleus , halo , hinge , classical mechanics

Spitzer mid-infrared images of the dusty warped disk in the galaxy CentaurusA show a parallelogram-shaped structure. We successfully model the observedmid-infrared morphology by integrating the light from an emitting, thin, andwarped disk, similar to that inferred from previous kinematic studies. Themodels with the best match to the morphology lack dust emission within theinner 0.1 to 0.8 kpc, suggesting that energetic processes near the nucleus havedisturbed the inner molecular disk, creating a gap in the molecular gasdistribution.Comment: submitted to Ap

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