26Al production from γ2-Velorum: Point source or diffuse emission at 1.8 MeV?

Details 26Al production from γ2-Velorum: Point source or diffuse emission at 1.8 MeV? 26Al production from γ2-Velorum: Point source or diffuse emission at 1.8 MeV?

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006newar..50..484m&link_type=abstract

New Astronomy Reviews, Volume 50, Issue 7-8, p. 484-486.

Astronomy and Astrophysics

Astronomy

3

Scientific paper

We explore the impact of the strong stellar winds characterising Wolf-Rayet stars on the 26Al distribution around γ2-Velorum and on the resulting 1.8 MeV emission in the sky. Based on a simple model considering the formation of a bubble at 20 pc around γ2-Velorum, it is shown that about two third of the total 1.8 MeV flux would be spread in the sky on a ring at a radius of about 6° around WR11, and that the 26Al remaining in the wind close to WR 11 would lead to a point-source emission flux at 1.8 MeV compatible with the upper limit reported by COMPTEL.

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