Astronomy and Astrophysics – Astronomy
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005mnras.359..383m&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 359, Issue 1, pp. 383-400.
Astronomy and Astrophysics
Astronomy
23
Dust, Extinction, Ism: Jets And Outflows, Planetary Nebulae: Individual: Ngc 6302
Scientific paper
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 Msolar. 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.
Hoare Melvin G.
Matsuura Mikako
Molster Frank J.
Nomura Hitomi
Sahai Raghvendra
No associations
LandOfFree
The dark lane of the planetary nebula NGC 6302*† does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The dark lane of the planetary nebula NGC 6302*†, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The dark lane of the planetary nebula NGC 6302*† will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1599535