J/ApJS/199/38 Presupernova evolution (Limongi+, 2012)
Presupernova evolution and explosive nucleosynthesis of zero metal massive
stars.
Limongi M., Chieffi A.
<Astrophys. J. Suppl. Ser., 199, 38 (2012)>
=2012ApJS..199...38L 2012ApJS..199...38L
ADC_Keywords: Models, evolutionary ; Supernovae ; Abundances
Keywords: early universe - Galaxy: abundances - stars: evolution -
nuclear reactions, nucleosynthesis, abundances - stars: abundances
Abstract:
We present a new set of zero metallicity models in the range
13-80M☉ together to the associated explosive nucleosynthesis.
These models are fully homogeneous with the solar metallicity set we
published in Limongi & Chieffi (2006ApJ...647..483L 2006ApJ...647..483L) and will be
freely available at the Online Repository for the FRANEC Evolutionary
Output (ORFEO) Web site. A comparison between these yields and an
average star that represents the average behavior of most of the very
metal-poor stars in the range -5.0<[Fe/H]←2.5 confirms previous
findings that only a fraction of the elemental [X/Fe] may be fitted by
the ejecta of standard core collapse supernovae.
Description:
In this paper, we present our latest zero metallicity massive star
models in the range 13-80M☉ and their related explosive
nucleosynthesis. These models differ from our previous set of zero
metallicity stars published in Chieffi & Limongi (2004, Cat.
J/ApJ/608/405) because of a number of changes in both the stellar
evolutionary code (numerical scheme, input physics, nuclear cross
sections, nuclear network) and the explosive nucleosynthesis. These
new versions of the hydrostatic code and of the hydrodynamical one
have already been used to produce a new set of solar metallicity
stellar models (Limongi & Chieffi 2006ApJ...647..483L 2006ApJ...647..483L) and hence the
present models are the natural complement of those.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 64 56 Key evolutionary properties
table2.dat 78 294 Explosion properties and ejected masses for all
the computed models
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See also:
J/ApJ/608/405 : Explosive yields of massive star (z=0-z☉) (Chieffi+,
2004)
J/ApJ/611/452 : Evolution of massive stars (El Eid+, 2004)
J/A+AS/103/67 : Evolutionary sequences with MC metallicities (de Loore+ 1994)
http://www.iasf-roma.inaf.it/orfeo/public_html/ : O.R.F.E.O. home page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 I2 Msun IMass [13/80] Initial model mass
4- 6 A3 --- Phase Nuclear burning stage
8- 14 E7.3 yr time Nuclear burning lifetime
16- 22 E7.3 10-7W <Lp> Average photon luminosity; erg/s
24- 29 E6.3 K <Tc> Average central temperature
31- 36 E6.3 g/cm3 Average central density
38- 42 F5.2 Msun Mcc ? Maximum convective core mass
44- 48 F5.2 Msun MHe Final He core mass
50- 54 F5.2 Msun MC Final CO core mass
56- 59 F4.2 [K] logT Log of final effective temperature
61- 64 F4.2 [Lsun] logL Log of final luminosity
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 6 A6 --- Param Explosion property or isotope ejected mass (1)
8- 15 E8.3 --- M13 Param value in the 13 solar mass model
17- 24 E8.3 --- M15 Param value in the 15 solar mass model
26- 33 E8.3 --- M20 Param value in the 20 solar mass model
35- 42 E8.3 --- M25 Param value in the 25 solar mass model
44- 51 E8.3 --- M30 Param value in the 30 solar mass model
53- 60 E8.3 --- M35 Param value in the 35 solar mass model
62- 69 E8.3 --- M50 Param value in the 50 solar mass model
71- 78 E8.3 --- M80 Param value in the 80 solar mass model
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Note (1): At 2.5E+4 seconds after the explosion. The parameters are
* the iron core mass (MFe), expressed in M☉
* the related mass cut (Mcut), in M☉;
* the total kinetic energy (Ekin) expressed in "foe" = 1051ergs = 1044J
* the ejected masses (in M_☉) of all the isotopes.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 25-Jun-2012