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Constraining Models of Classical Nova Outbursts with the Murchison Meteorite

Published online by Cambridge University Press:  05 March 2013

Jordi José ,
Margarita Hernanz ,
Sachiko Amari  and
Ernst Zinner
Jordi José
Affiliation:
Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Barcelona, Spainjjose@ieec.fcr.es Institut d'Estudis Espacials de Catalunya, Barcelona, Spain
Margarita Hernanz
Affiliation:
Institut de Ciències de l'Espai (CSIC), Barcelona, Spain Institut d'Estudis Espacials de Catalunya, Barcelona, Spain
Sachiko Amari
Affiliation:
Laboratory for Space Sciences and the Physics Department, Washington University, St. Louis, MO 63130, USA
Ernst Zinner
Affiliation:
Laboratory for Space Sciences and the Physics Department, Washington University, St. Louis, MO 63130, USA
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Abstract

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Infrared observations of nova light curves reveal that classical novae form grains in the expanding shells, ejected into the interstellar medium as a consequence of a violent outburst. Such grains contain nucleo-synthetic fingerprints of the nova explosion. In this paper, we analyse different isotopic signatures expected to be present in nova grains on the basis of detailed hydrodynamic calculations of CO and ONe novae and compare them with recent determinations of presolar nova grains from the Acfer 094 and Murchison meteorites.

Keywords

novae, cataclysmic variablesnucleosynthesis, abundances, isotopic anomalies, dustmeteors
Type
Sixth Torino Workshop
Information
Publications of the Astronomical Society of Australia , Volume 20 , Issue 4 , 2003 , pp. 351 - 355
Copyright
Copyright © Astronomical Society of Australia 2003

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