Maser activity and hydrogen emission in long-period variable stars
Journal Article
·
· Publ. Astron. Soc. Pac.; (United States)
- National Radio Astronomy Observatory, Tucson, Ariz.
- Steward Observatory
A variety of long-period variable (LPV) stars were observed in order to compare H-delta emission with microwave maser emission. The stars include representatives of the S-type stars and carbon stars. The LPVs and S stars both have some members that show masing activity in the circumstellar shells and others that apparently do not. No correlation between hydrogen emission and maser activity was found. Some of the masing LPVs have H-delta in emission and some in absorption. For each group there is a correlation between equivalent width and phase.
- OSTI ID:
- 5023852
- Journal Information:
- Publ. Astron. Soc. Pac.; (United States), Journal Name: Publ. Astron. Soc. Pac.; (United States) Vol. 91; ISSN PASPA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
640103 -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
BALMER LINES
ELECTRONIC EQUIPMENT
EMISSION SPECTRA
EQUIPMENT
LINE WIDTHS
MASERS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
SPECTRA
SPECTROPHOTOMETRY
STARS
TABLES
TELESCOPES
VARIABLE STARS
Radio & X-Ray Sources
640103 -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLIFIERS
BALMER LINES
ELECTRONIC EQUIPMENT
EMISSION SPECTRA
EQUIPMENT
LINE WIDTHS
MASERS
MICROWAVE AMPLIFIERS
MICROWAVE EQUIPMENT
SPECTRA
SPECTROPHOTOMETRY
STARS
TABLES
TELESCOPES
VARIABLE STARS