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Large-Scale Extended Emission Around the Helix Nebula

Published online by Cambridge University Press:  26 May 2016

A. K. Speck ,
M. Meixner ,
D. Fong ,
P. R. McCullough ,
D. E. Moser  and
T. Ueta
A. K. Speck
Affiliation:
Astronomy Dept., University of Illinois at Urbana/Champaign, IL 61801
M. Meixner
Affiliation:
Astronomy Dept., University of Illinois at Urbana/Champaign, IL 61801
D. Fong
Affiliation:
Astronomy Dept., University of Illinois at Urbana/Champaign, IL 61801
P. R. McCullough
Affiliation:
Astronomy Dept., University of Illinois at Urbana/Champaign, IL 61801
D. E. Moser
Affiliation:
Astronomy Dept., University of Illinois at Urbana/Champaign, IL 61801
T. Ueta
Affiliation:
Astronomy Dept., University of Illinois at Urbana/Champaign, IL 61801

Extract

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We have presented new observations of the ionized gas, molecular gas and cool dust in the Helix nebula (NGC 7293). The ionized gas is observed in the form of a Hα image, which is constructed using images from the Southern H-Alpha Sky Survey Atlas (SHASSA). The molecular emission was mapped using the H2v = 1 → 0 s(1) line at 2.122μm. The far-infrared (FIR) observations were obtained using ISOPHOT on the Infrared Space Observatory (ISO).

Type
Part V: Dust and Molecules in Planetary Nebulae
Information
Symposium - International Astronomical Union , Volume 209: Planetary Nebulae: Their Evolution and Role in the Universe , 2003 , pp. 316
Copyright
Copyright © Astronomical Society of the Pacific 2003