Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2009-02-02
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
2 pages, 1 figure, proceedings of 'Probing Stellar Populations out to the Distant Universe' September 15-19 2008, Cefalu, Sici
Scientific paper
We use the star formation history map of the Large Magellanic Cloud recently published by Harris & Zaritsky to study the sites of the youngest Type Ia supernova remnants. We find that most Type Ia remnants are associated with old, metal-poor stellar populations, with little or no recent star formation. These include SNR 0509-67.5 which is known to have been originated by an extremely bright SN 1991T-like event, and yet is located very far away from any star forming regions. The Type Ia remnant SNR N103B, however, is associated with vigorous star formation activity in the last 100 Myr, and might have had a relatively younger and more massive progenitor.
Badenes Carles
Harris Jason
Prieto Jose Luis
Zaritsky Dennis
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