V 605 Aquilae - A star and a nebula with no hydrogen

Details V 605 Aquilae - A star and a nebula with no hydrogen V 605 Aquilae - A star and a nebula with no hydrogen

Dec 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987msngr..50...14s&link_type=abstract

ESO Messenger (ISSN 0722-6691), Dec. 1987, v. 50, p. 14-17.

Computer Science

39

Abundance, Helium, Planetary Nebulae, Stellar Spectrophotometry, Cn Emission, Hydrogen, Radial Velocity, Stellar Winds

Scientific paper

Observations of the planetary nebulae A 58 and V 605 Aquilae and their common central star are discussed. The spectral characteristics of the star and PNs and the velocities of the PNs are reported. The results indicate that V 605 Aql is a final helium shell flash object about 25,000 yr old evolving on a dynamic time scale. Incomplete CNO cycle and possibly He-burning can account for the elemental abundances in the remnant star and nebula. The remnant star shows a strong WC-type wind. The presence of hydrogen previously reported in the central nebula of A 58 is attributed here to a superimposed PN spectrum.

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