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| Paper: |
Type IA supernovae: Pulsating delayed detonation models, IR light curves, and the formation of molecules |
| Volume: |
73, Airborne Astronomy Symposium on the Galactic Ecosystem: From Gas to Stars to Dust |
| Page: |
441 |
| Authors: |
Hoflich, Peter; Khokhlov, A.; Wheeler, C. |
| Abstract: |
We computed optical and infrared light curves of the pulsating class of delayed detonation models for Type Ia supernovae (SNe Ia). It is demonstrated that observations of the IR light curves can be used to identify subluminous SNe Ia by testing whether secondary maxima occur in the IR. Our pulsating delayed detonation models are in agreement with current observations both for subluminous and normal bright SN Ia, namely SN1991bg, SN1992bo, and SN1992bc. Observations of molecular bands provide a test to distinguish whether strongly subluminous supernovae are a consequence of the pulsating mechanism occurring in a high-mass white dwarf (WD) or, alternatively, are formed by the helium detonation in a low-mass WD as was suggested by Woosley. In the latter case, no carbon is left after the explosion of low-mass WDs whereas a log of C/O-rich material is present in pulsating delayed detonation models. |
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