ISSN:
1572-946X
Keywords:
planetary nebulae: individual (AFGL 915, AFGL 618, AFGL 2688)
;
planetary nebulae: General
;
planetary nebulae: Infrared
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have obtained near diffraction-limited images of three bipolar PPN at UKIRT in October, 1993: AFGL 915 (the “Red Rectangle”), AFGL 618, and AFGL 2688 (the “Egg Nebula”). Images were taken at unidentified infrared (UIR) emission feature wavelengths and at several continuum wavelengths in the 10 and 20µm atmospheric windows. In all three PPN the emission is dominated by a central point source with fainter emission extending for several arcsec. In AFGL 2688, the mid-IR emission is extended in the same direction as the main optical lobes. In AFGL 915, the UIR feature emission is spatially separated from the central source. The “spikes” that have been observed at 2µm and give the nebula its rectangular appearance are also visible at 10µm.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00667872
