The submillimetre evolution of V4334 Sgr (Sakurai's Object)

T. R. Geballe, V. H. Tyne, Don L Pollacco, S. P. S. Eyres, B. Smalley, A. Evans

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

Crynodeb

We report the results of monitoring of V4334 Sgr (Sakurai's Object) at 450 and 850 μm with SCUBA on the James Clerk Maxwell Telescope. The flux density at both wavelengths has increased dramatically since 2001, and is consistent with continued cooling of the dust shell in which Sakurai's Object is still enshrouded, and which still dominates the near-infrared emission. Assuming that the dust shell is optically thin at submillimetre wavelengths and optically thick in the near-infrared, the submillimetre data imply a mass-loss rate during 2003 of ∼3.4 ± 0.2 × 10−5 M⊙ yr−1 for a gas-to-dust ratio of 75. This is consistent with the evidence from 1–5 μm observations that the mass loss is steadily increasing.

Iaith wreiddiolSaesneg
Tudalennau (o-i)L41-L44
CyfnodolynMonthly Notices of the Royal Astronomical Society
Cyfrol353
Rhif cyhoeddi4
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 1 Hyd 2004

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