Possible detection of V4334 Sgr (Sakurai's Object) at 450 and 850 μm |
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| Authors: | A Evans T R Geballe V H Tyne D Pollacco S P S Eyres B Smalley |
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| Institution: | Department of Physics, Keele University, Keele, Staffordshire ST5 5BG,; Gemini Observatory, 670 N. A'ohoku Place, Hilo, HI 96720, USA,; Department of Pure &Applied Physics, Queen's University of Belfast, Belfast BT7 1NN and; Centre for Astrophysics, University of Central Lancashire, Preston PR1 2HE |
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| Abstract: | We report the possible detection of V4334 Sgr (Sakurai's Object) at 450 and 850 μm with SCUBA on the James Clerk Maxwell Telescope. The submillimetre photometry, combined with a 1–5 μm spectrum and 8–10 μm photometry obtained nearly contemporaneously, suggests that the submillimetre emission originates in material ejected during the 1995 event. The dust mass is a few×10-7 M⊙ , the average mass-loss in the form of dust is few×10-8 M⊙ yr-1 , and the integrated luminosity is log( L /L⊙)=3.66 for a distance of 2 kpc. The ejected shell had angular diameter ∼55 mas in 2001 August, and should by now be resolvable in the mid-infrared by 8–10 m class telescopes. |
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| Keywords: | stars: carbon stars: evolution stars: individual: V4334 Sgr (Sakurai's Object) |
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