DISCOVERY OF A MULTIPOLAR STRUCTURE WITH AN EQUATORIAL DISK IN NGC 6072

Journal Article · Fri Jan 01 00:00:00 EST 2010 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/708/1/93· OSTI ID:21392511

Kwok, Sun; Chong, Sze-Ning; Hsia, Chih-Hao; Yong, Zhang ^[1]; Koning, Nico ^[2]

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1. Department of Physics, University of Hong Kong, Pokfulam Road (Hong Kong)
2. Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4 (Canada)

From near-infrared and molecular hydrogen imaging observations, we have discovered that the planetary nebula NGC 6072 has a multipolar structure with a prominent equatorial ring. We have modeled the object by a double bipolar system, each with an equatorial ring and a pair of bipolar lobes. The bipolar axes of the two systems are estimated to be separated by 47 deg. The existence of such a double bipolar system suggests that the object has undergone separate fast outflow episodes separated by several thousand years.

• OSTI ID: 21392511
• Journal Information: Astrophysical Journal, Vol. 708, Issue 1; Other Information: DOI: 10.1088/0004-637X/708/1/93; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
HYDROGEN
INFRARED SPECTRA
NEAR INFRARED RADIATION
PLANETARY NEBULAE
STAR EVOLUTION
ELECTROMAGNETIC RADIATION
ELEMENTS
EVOLUTION
INFRARED RADIATION
NEBULAE
NONMETALS
RADIATIONS
SPECTRA