Isotopic composition of solar flare accelerated magnesium

Journal Article · Sun Feb 01 04:00:00 EST 1981 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183465· OSTI ID:6445306

Mewaldt, R A; Spalding, J D; Stone, E C; Vogt, R E

We report observations of energetic solar particles from the 1978 September 23 solar flare in which the three stable isotopes of magnesium are clearly resolved with a mass resolution of 0.23 amu. We find /sup 25/Mg//sup 24/Mg = 0.14 (+0.05, -0.02) and /sup 26/Mg//sup 24/Mg = 0.15 (+0.04, -0.03) in the energy interval 12--36 MeV per nucleon. These observations are consistent with terrestial magnesium isotopic abundances.

• Research Organization: California Institute of Technology
• OSTI ID: 6445306
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 243:3; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640104* -- Astrophysics & Cosmology-- Solar Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABUNDANCE
ALKALINE EARTH ISOTOPES
CHEMICAL COMPOSITION
DETECTION
ISOTOPE RATIO
ISOTOPES
MAGNESIUM ISOTOPES
RADIATION DETECTION
RADIATIONS
SOLAR ACTIVITY
SOLAR FLARES
SOLAR PARTICLES
SOLAR RADIATION
SOLAR SYSTEM
STELLAR RADIATION
TELESCOPE COUNTERS