Study of the nova-produced 22Na with COMPTEL

Details Study of the nova-produced 22Na with COMPTEL Study of the nova-produced 22Na with COMPTEL

Sep 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001esasp.459...41i&link_type=abstract

In: Exploring the gamma-ray universe. Proceedings of the Fourth INTEGRAL Workshop, 4-8 September 2000, Alicante, Spain. Editor:

Astronomy and Astrophysics

Astrophysics

Gamma Rays, Gamma-Ray Lines, Nucleosynthesis, Novae

Scientific paper

After 9 years of the Compton Mission (CGRO), the COMPTEL telescope continues to improve the level of sensitivity towards about 10-5 photons/(cm2s) in line emission around 1 MeV. Classical novae provide an environment in which hydrogen-burning reactions proceed on CNO and heavier nuclei at high temperatures. For such conditions astrophysically significant fluxes of the 22Na γ-ray line at 1.275 MeV are expected from the nearby nova. We have analyzed measurements of 22Na line emission from several recent novae, including nova V382 Vel, the brightest neon-type nova in the last 25 years, to gain more insight into sodium production in the Galaxy.

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