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- W2034953602 abstract "The butterfly-shaped planetary nebula, NGC 6302, shows a unique, dense equatorial dark lane, which is presumably a dusty disc, obscuring an unobserved, very hot central star. We trace the structure of this disc using Hubble Space Telescope Hα and [N ii] images, Very Large Telescope L-and M-band images at 0.4-arcsec resolution, including Brα and polycyclic aromatic hydrocarbon (PAH) images, and a James Clerk Maxwell Telescope 450-μm image. Extinction maps are derived from these images. Within the disc, the extinction is AHα= 5–7 mag and ABrα= 1–2 mag. The 450-μm map shows a north–south elongated central core, tracing the massive dust disc, and extended emission from dust in the bipolar flows. A fit to the spectral energy distribution yields the disc dust mass of 0.03 M⊙. The innermost region shows an ionized shell. The orientation of the polar axis shows a marked change between shell, disc and inner and outer outflow. The structures are well described by the warped-disc model of Icke (2003). PAH images are presented: PAH emission is found in the shell but avoids the disc. An infrared source is found close to the expected location of the central star." @default.
- W2034953602 created "2016-06-24" @default.
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- W2034953602 date "2005-05-01" @default.
- W2034953602 modified "2023-10-04" @default.
- W2034953602 title "The dark lane of the planetary nebula NGC 6302" @default.
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- W2034953602 doi "https://doi.org/10.1111/j.1365-2966.2005.08903.x" @default.
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