J/A+A/557/A106 Evolution and CNO yields of Z=10-5 stars (Gil-Pons+, 2013)
Evolution and CNO yields of Z=10-5 stars and possible effects on CEMP
production.
Gil-Pons P., Doherty C., Lau H., Campbell S., Suda T., Guilani S.,
Gutierrez J., Lattanzio J.C.
<Astron. Astrophys. 557, A106 (2013)>
=2013A&A...557A.106G 2013A&A...557A.106G
ADC_Keywords: Models, evolutionary ; Abundances
Keywords: stars: AGB and post-AGB - stars: abundances - stars: evolution
Abstract:
Our main goals are to get a deeper insight into the evolution and
final fates of intermediate-mass, extremely metal-poor (EMP) stars. We
also aim to investigate the C, N, and O yields of these stars.
Using the Monash University Stellar Evolution code MONSTAR we computed
and analysed the evolution of stars of metallicity Z=10-5 and masses
between 4 and 9M☉, from their main sequence until the late
thermally pulsing (super)asymptotic giant branch, TP-(S)AGB phase.
Description:
Tables evohrXXX.dat present the effective temperature (1st column) and
surface luminosity (2nd column) for our model stars of metallicity
Z=10-5 and masses 4M☉ (evohr040.dat), 5M☉
(evohr050.dat), 6M☉ (evohr060.dat), 7M☉ (evohr070.dat),
8M☉ (evohr080.dat), and 9M☉ (evohr090.dat). The
corresponding data are plotted in Figure 1.
Tables esurfXXX.dat present the time evolution of surface abundances
for our model stars: time in years (1st column), H (2nd column), 3He
(3rd column), 4He (4th column), 12C (5th column), 14N (6th
column), 16O (7th column), Zother (8th column). Part of the
corresponding data are plotted in Figure 8.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
evohr040.dat 24 18589 Model stars for Z=10-5 and M=4M☉
evohr050.dat 24 19390 Model stars for Z=10-5 and M=5M☉
evohr060.dat 24 16102 Model stars for Z=10-5 and M=6M☉
evohr070.dat 24 16431 Model stars for Z=10-5 and M=7M☉
evohr080.dat 24 150721 Model stars for Z=10-5 and M=8M☉
evohr090.dat 24 4092 Model stars for Z=10-5 and M=9M☉
esurf040.dat 91 40381 Time evolution of surface abundances M=4M☉
esurf050.dat 91 7751 Time evolution of surface abundances M=5M☉
esurf060.dat 91 22887 Time evolution of surface abundances M=6M☉
esurf070.dat 91 82944 Time evolution of surface abundances M=7M☉
esurf080.dat 91 24815 Time evolution of surface abundances M=8M☉
esurf090.dat 91 73781 Time evolution of surface abundances M=9M☉
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See also:
J/A+AS/123/305 : Yields of intermediate mass stars (van den Hoek+ 1997)
J/A+A/416/1117 : Abundances in the early Galaxy (Cayrel+, 2004)
J/ApJS/155/651 : Evolution of extremely metal-poor stars (Herwig+, 2004)
J/A+A/432/861 : Yields of low and intermediate mass stars (Gavilan+, 2005)
J/ApJ/608/405 : Massive star explosive yields (z=0-z☉) (Chieffi+, 2005)
J/A+A/490/769 : Yields from extremely metal-poor stars (Campbell+, 2008)
J/ApJ/696/797 : Evolution and yields of low-mass AGB stars (Cristallo+, 2009)
J/MNRAS/403/1413 : Updated stellar yields from AGB models (Karakas, 2010)
Byte-by-byte Description of file(#): evohr*.dat
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Bytes Format Units Label Explanations
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3- 12 E10.5 [K] logTeff Effective temperature
15- 24 E10.5 [Lsun] logL Surface luminosity
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Byte-by-byte Description of file(#): esurf*.dat
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Bytes Format Units Label Explanations
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1- 14 E14.9 yr Time Time
16- 25 E10.5 --- xsH ?=-1 H surface abundance
27- 36 E10.5 --- xs3He ?=-1 3He surface abundance
38- 47 E10.5 --- xs4He ?=-1 4He surface abundance
49- 58 E10.5 --- xs12C ?=-1 12C surface abundance
60- 69 E10.5 --- xs14N ?=-1 14N surface abundance
71- 80 E10.5 --- xs16O ?=-1 16O surface abundance
82- 91 E10.5 --- xsZot Zother surface abundance
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Acknowledgements:
Pilar Gil-Pons, pilar(at)fa.upc.es
(End) Patricia Vannier [CDS] 10-Sep-2013