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 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