Evidence for Presolar Grain SiC Aggregates from Cosmogenic Nuclides

Heck, P.R., Greer, J. , Kööp, L., Trappitsch, R., Gyngard, F., Busemann, H., Maden, C., Ávila, J.N., Davis, A.M. and Wieler, R. (2019) Evidence for Presolar Grain SiC Aggregates from Cosmogenic Nuclides. In: 82nd Annual Meeting of the Meteoritical Society, Sapporo, Japan, 7-12 Jul 2019,

Abstract

We analyzed cosmogenic He and Ne in large presolar SiC from Murchison. By utilizing the large difference in nuclear recoil loss of cosmogenic 3He and 21Ne we conclude that some grains were likely part of large aggregates in the interstellar medium.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Greer, Dr Jennika
• Authors: Heck, P.R., Greer, J., Kööp, L., Trappitsch, R., Gyngard, F., Busemann, H., Maden, C., Ávila, J.N., Davis, A.M., and Wieler, R.
• College/School: College of Science and Engineering > School of Geographical and Earth Sciences > Earth Sciences