The complete ISO spectrum of NGC 6302

Details The complete ISO spectrum of NGC 6302 The complete ISO spectrum of NGC 6302

2001-03-30

arxiv.org/abs/astro-ph/0103504v1

Astronomy and Astrophysics

Astrophysics

8 pages, 4 figures, accepted by A&A. The postscriptfile can also be found at http://www.astro.uva.nl/~frankm/papers.html

Scientific paper

10.1051/0004-6361:20010465

We present the combined Infrared Space Observatory Short-Wavelength Spectrometer and Long-Wavelength Spectrometer 2.4--197 micron spectrum of the Planetary Nebula NGC 6302 which contains in addition to strong atomic lines, a series of emission features due to solid state components. The broad wavelength coverage enables us to more accurately identify and determine the properties of both oxygen- and carbon-rich circumstellar dust. A simple model fit was made to determine the abundance and typical temperature of the amorphous silicates, enstatite and forsterite. Forsterite and enstatite do have roughly the same abundance and temperature. The origin and location of the dust in a toroidal disk around the central star are discussed.

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