The spectrum of HM Sagittae: a planetary nebula excited by a Wolf--Rayet star
Technical Report
·
OSTI ID:6780847
Image tube spectrograms of HM Sagittae were obtained. More than 70 emission lines, including several broad emission features, were identified. An analysis of the spectra indicates that HM Sagittae is a planetary nebula excited by a Wolf-Rayet star. The most conspicuous Wolf-Rayet feature is that attributed to a blend of C III at 4650 A and He II at 4686 A.
- Research Organization:
- National Aeronautics and Space Administration, Greenbelt, Md. (USA). Goddard Space Flight Center
- OSTI ID:
- 6780847
- Report Number(s):
- N-78-10989; NASA-TM-X-71415; X-685-77-253
- Country of Publication:
- United States
- Language:
- English
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