Oxygen 16 to oxygen 18 abundance ratio in the solar wind observed by Wind/MASS | Zendy

Collier Michael R. | Zendy; Hamilton D. C. | Zendy; Gloeckler G. | Zendy; Ho G. | Zendy; Bochsler P. | Zendy; Bodmer R. | Zendy; Sheldon R. | Zendy

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Oxygen 16 to oxygen 18 abundance ratio in the solar wind observed by Wind/MASS

Author(s) -

Collier Michael R.,

Hamilton D. C.,

Gloeckler G.,

Ho G.,

Bochsler P.,

Bodmer R.,

Sheldon R.

Publication year - 1998

Publication title -

journal of geophysical research: space physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.67

H-Index - 298

eISSN - 2156-2202

pISSN - 0148-0227

DOI - 10.1029/97ja02245

Subject(s) - solar wind , coronal mass ejection , oxygen , atmospheric sciences , physics , spacecraft , solar irradiance , environmental science , astrophysics , astronomy , plasma , quantum mechanics

Measurements of the 16 O and 18 O distribution functions in the solar wind at low to average solar wind speeds from the MASS instrument on the Wind spacecraft are reported. The 16 O/ 18 O density ratio is 450 ± 130, a value consistent with terrestrial, solar photospheric, solar energetic particle, and galactic cosmic ray 16 O/ 18 O isotopic ratios. This study constitutes the first reported spacecraft measurement of the isotope 18 O in the core solar wind and may represent the best determination of the solar 16 O/ 18 O density ratio to date.

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