An Optical-infrared Study of the Young Multipolar Planetary Nebula NGC 6644

Details An Optical-infrared Study of the Young Multipolar Planetary Nebula NGC 6644 An Optical-infrared Study of the Young Multipolar Planetary Nebula NGC 6644

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...725..173h&link_type=abstract

The Astrophysical Journal, Volume 725, Issue 1, pp. 173-183 (2010).

Astronomy and Astrophysics

Astronomy

2

Ism: General, Planetary Nebulae: Individual: Ngc 6644, Stars: Individual: Agb

Scientific paper

High-resolution Hubble Space Telescope imaging of the compact planetary nebula NGC 6644 has revealed two pairs of bipolar lobes and a central ring lying close to the plane of the sky. From mid-infrared imaging obtained with the Gemini Telescope, we have found a dust torus which is oriented nearly perpendicular to one pair of the lobes. We suggest that NGC 6644 is a multipolar nebula and construct a three-dimensional model that allows the visualization of the object from different lines of sight. These results suggest that NGC 6644 may have similar intrinsic structures as other multipolar nebulae and the phenomenon of multipolar nebulosity may be more common than previously believed.

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