The EGG nebula - A protostellar disc remnant around an evolved star?

Details The EGG nebula - A protostellar disc remnant around an evolved star? The EGG nebula - A protostellar disc remnant around an evolved star?

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.238p..37p&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 238, May 15, 1989, p. 37p-40p.

Other

13

Accretion Disks, Planetary Nebulae, Protostars, Star Formation, Stellar Envelopes, Angular Momentum, Emission Spectra, Hydrocyanic Acid, Line Spectra, Stellar Mass Ejection

Scientific paper

HCN observations of CRL 2688 (the 'Egg Nebula') indicate that the dense circumstellar envelope contains a large amount of angular momentum. It is proposed that the source of this angular momentum is a large and massive circumstellar disk left over from the period of star formation. It is suggested that the presence of such disks could be quite common, and attention is drawn to other observational areas which offer support for the longevity of such disks.

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