An imaging and spectroscopic survey of the Abell Planetary Nebulae
1997 ◽
Vol 180
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pp. 287-287
Keyword(s):
The Abell catalogue of planetary nebulae (PN) are distinguished by their large size, low surface brightness and generally faint central stars. They are thought to be old PN approaching the White Dwarf cooling track. A number have evidence for late thermal pulses (H-poor ejecta near the central star, e.g. A78) and binary central stars.
1993 ◽
Vol 155
◽
pp. 499-499
Keyword(s):
1997 ◽
Vol 180
◽
pp. 133-133
Keyword(s):
1989 ◽
Vol 131
◽
pp. 355-355
◽
Keyword(s):
2003 ◽
Vol 209
◽
pp. 633-634
1989 ◽
Vol 131
◽
pp. 463-472
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Keyword(s):