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SIMBA's view of the epsilon Eri disk | | O. Schuetz
; M. Nielbock
; S. Wolf
; Th. Henning
; S. Els
; | | Date: |
9 Dec 2003 | | Journal: | Astron.Astrophys. 414 (2004) L9-L12 | | Subject: | astro-ph | | Affiliation: | MPIA Heidelberg, AIRUB Bochum, Caltech, ING La Palma/Spain | | Abstract: | We present the first observational confirmation for an extended circumstellar dust disk around epsilon Eri. The observations were obtained with the bolometer array SIMBA at the 15 m radio telescope SEST in Chile and measure the dust continuum at 1.2 mm. The emission, with a total flux of 21.4 mJy and a rms of 2.2 mJy/beam, is resolved to a deconvolved size of 27.4 arcsec which corresponds to 88 AU. No clear indication for a ring-like disk structure is seen, possibly also due to the telescope’s large beam width of 24 arcsec. Models of the object’s spectral energy distribution from IR to mm-wavelengths show that the emission can also be explained by a simple disk model. We further demonstrate the strong influence of noise and propose to be cautious with interpretations of the ring substructure. | | Source: | arXiv, astro-ph/0401139 | | Services: | Forum | Review | PDF | Favorites | |
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