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J/ApJ/666/1048      Supernova mixtures                       (Yoshida+, 2007)

Supernova mixtures reproducing isotopic ratios of presolar grains. Yoshida T. <Astrophys. J., 666, 1048-1068 (2007)> =2007ApJ...666.1048Y
ADC_Keywords: Supernovae ; Models ; Abundances Keywords: dust, extinction - nuclear reactions, nucleosynthesis, abundances - solar system: formation - supernovae: general Abstract: Most of supernova-originating presolar grains, such as silicon carbide type X (SiC X) and low-density graphite, show excesses of 28Si. Some of them also indicate evidence for the original presence of short-lived nuclei 44Ti. In order to reproduce isotopic and elemental signatures of these grains, large-scale heterogeneous mixing in supernova ejecta is required. I investigate supernova mixtures that reproduce as many isotopic ratios as possible of 18 individual SiC X and 26 individual low-density graphite grains. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table3.dat 98 112 Abundances, isotopic ratios, and the C/O ratio of each layer in the supernova ejecta of the 3.3, 4, 6, and 8M He star models
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 3 F3.1 solMass Mass Model mass (3.3, 4, 6 or 8 M) 5- 24 A20 --- Param Abundance (for a specie) or isotopic ratio 26- 35 E10.3 --- Ni Param value in the Ni layer (1) 37- 46 E10.3 --- Si/S Param value in the Si/S layer (1) 48- 57 E10.3 --- O/Si Param value in the O/Si layer (1) 59- 67 E9.3 --- O/Ne Param value in the O/Ne layer (1) 69- 77 E9.3 --- C/O Param value in the C/O layer (1) 79- 87 E9.3 --- He/C Param value in the He/C layer (1) 89- 98 E10.3 --- He/N Param value in the He/N layer (1)
Note (1): In this study, the supernova ejecta are divided into seven layers based on the characteristics of the chemical composition distribution: Ni, Si/S, O/Si, O/Ne, C/O or O/C, He/C, and He/N layers.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 14-Oct-2009
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