21Na(p,gamma)22Mg reaction and oxygen-neon novae.
The 21Na(p,gamma)22Mg reaction is expected to play an important role in the nucleosynthesis of 22Na in oxygen-neon novae. The decay of 22Na leads to the emission of a characteristic 1.275 MeV gamma-ray line. This report provides the first direct measurement of the rate of this reaction using a radioactive 21Na beam, and discusses its astrophysical implications. The energy of the important state was measured to be E(c.m.)=205.7+/-0.5 keV with a resonance strength omegagamma=1.03+/-0.16(stat)+/-0.14(sys) meV.
Bishop
S
S
Simon Fraser University, Burnaby, British Columbia, Canada.
Azuma
R E
RE
Buchmann
L
L
Chen
A A
AA
Chatterjee
M L
ML
D'Auria
J M
JM
Engel
S
S
Gigliotti
D
D
Greife
U
U
Hernanz
M
M
Hunter
D
D
Hussein
A
A
Hutcheon
D
D
Jewett
C
C
José
J
J
King
J
J
Kubono
S
S
Laird
A M
AM
Lamey
M
M
Lewis
R
R
Liu
W
W
Michimasa
S
S
Olin
A
A
Ottewell
D
D
Parker
P D
PD
Rogers
J G
JG
Strieder
F
F
Wrede
C
C