Imaging and spectroscopy of the helix nebula: The ring is actually a disk

Astronomical Journal

Volumn 116, Issue 3, 1998, Pages 1346-1356

  O'Dell, C R ^a  

^a RICE UNIVERSITY   (United States)

Author keywords

Individual (NGC 7293); Planetary nebulae

Indexed keywords

EID: 0039065093     PISSN: 00046256     EISSN: None     Source Type: Journal    
DOI: 10.1086/300506     Document Type: Article

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