J/A+A/543/A108 Grid of stellar models, asteroseismology (Lagarde+, 2012)
Thermohaline instability and rotation-induced mixing.
III. Grid of stellar models and asymptotic asteroseismic quantities from the
pre-main sequence up to the AGB for low- and intermediate-mass stars of various
metallicities.
Lagarde N., Decressin T., Charbonnel C., Eggenberger P., Ekstroem S.,
Palacios A.
<Astron. Astrophys., 543, A108 (2012)>
=2012A&A...543A.108L 2012A&A...543A.108L
ADC_Keywords: Models, evolutionary
Keywords: asteroseismology - instabilities - stars: rotation -
stars: evolution - stars: interiors
Abstract:
The availability of asteroseismic constraints for a large sample of
stars from the missions CoRoT and Kepler paves the way for various
statistical studies of the seismic properties of stellar populations.
We evaluate the impact of rotation-induced mixing and thermohaline
instability on the global asteroseismic parameters at different stages
of the stellar evolution from the zero age main sequence to the
thermally pulsating asymptotic giant branch to distinguish stellar
populations.
Description:
Grid of stellar models and asymptotic asteroseismic quantities for
four metallicities (Z= 0.0001, 0.002, 0.004, and 0.014) in the mass
range from 0.85 to 6.0 Msun. The models are computed either with
standard prescriptions or including both thermohaline convection and
rotation-induced mixing. For the whole grid, we provide the usual
stellar parameters (luminosity, effective temperature, lifetimes,
...), together with the global seismic parameters, i.e. the large
frequency separation and asymptotic relation (microHz)s, the frequency
corresponding to the maximum oscillation power νmax, the maximal
amplitude Amax, the asymptotic period spacing of g-modes, and
different acoustic radii.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
z0001.dat 813 8500 Grid of stellar models for Z=0.0001
z002.dat 813 8500 Grid of stellar models for Z=0.002
z004.dat 813 7500 Grid of stellar models for Z=0.004
z014.dat 813 8000 Grid of stellar models for Z=0.014
--------------------------------------------------------------------------------
Byte-by-byte Description of file: z0001.dat z002.dat z004.dat z014.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 6 F6.4 --- Z Initial Z abundance
8 A1 --- T [rs] s: standard prescriptions or
r: th+rot prescriptions
10- 13 F4.2 Msun Mass [1/6] Initial mass (1.0, 1.25, 1.5, 2.0,
2.5, 3.0, 4.0, 6.0)
15- 20 I6 --- Mod Model number
23- 30 F8.2 Lsun L Surface luminosity
33- 38 F6.2 Rsun Reff Photospheric radius
42- 46 I5 K Teff Effective temperature
48- 56 E9.3 g/cm3 rhoeff Photospheric density
58- 66 E9.2 [cm/s2] log(g) Photospheric gravity
68- 77 E10.4 Msun/yr Mloss Mass-loss rate
79- 88 E10.8 Msun M Stellar mass
90-105 E16.10 yr t Age
107-116 E10.4 km/s vsurf Surface velocity
118-127 E10.4 --- Amax Maximum amplitude
129-138 E10.4 Hz dnu.a The large separation from asymptotic relation
140-149 E10.4 Hz dnu.s The large separation from scaling relation
151-160 E10.4 s Ttot The total acoustic radius τt
162-171 E10.4 s tBCE The acoustic radius at the base of
the convective envelope
173-182 E10.4 s tHe The acoustic radius at the location of
helium second-ionisation region
184-193 E10.4 Hz numax The frequency with the maximum amplitude
195-205 E11.4 s Dpg The asymptotic period spacing of g-modes
207-215 E9.3 K Tc Central temperature
217-225 E9.3 K Tmax Maximum of temperature
227-234 D8.6 Msun MrTmax Mass coordinate of Tmax
236-244 E9.3 g/cm3 rhoc Central density
246-254 E9.3 g/cm3 rhomax Density at the location of Tmax
256-264 E9.3 dPa Pc Central pressure (cgs)
266-274 D9.7 Msun Mbenv Mass at the base of convective envelope
276-285 E10.4 --- XHc Central abundance of H (mass fraction)
287-296 E10.4 --- XHe3c Central abundance of 3He (mass fraction)
298-307 E10.4 --- XHe4c Central abundance of 4He (mass fraction)
309-318 E10.4 --- XC12c Central abundance of 12C (mass fraction)
320-329 E10.4 --- XC13c Central abundance of 13C (mass fraction)
331-340 E10.4 --- XC14c Central abundance of 14C (mass fraction)
342-351 E10.4 --- XN14c Central abundance of 14N (mass fraction)
353-362 E10.4 --- XO16c Central abundance of 16O (mass fraction)
364-373 E10.4 --- XO17c Central abundance of 17O (mass fraction)
375-384 E10.4 --- XO18c Central abundance of 18O (mass fraction)
386-395 E10.4 --- XF19c Central abundance of 19F (mass fraction)
397-406 E10.4 --- XNe20c Central abundance of 20Ne (mass fraction)
408-417 E10.4 --- XNe21c Central abundance of 21Ne (mass fraction)
419-428 E10.4 --- XNe22c Central abundance of 22Ne (mass fraction)
430-439 E10.4 --- XNa23c Central abundance of 23Na (mass fraction)
441-450 E10.4 --- XMg24c Central abundance of 24Mg (mass fraction)
452-461 E10.4 --- XMg25c Central abundance of 25Mg (mass fraction)
463-472 E10.4 --- XMg26c Central abundance of 26Mg (mass fraction)
474-483 E10.4 --- XAl26c Central abundance of 26Al (mass fraction)
485-494 E10.4 --- XAl27c Central abundance of 27Al (mass fraction)
496-505 E10.4 --- XSi28c Central abundance of 28Si (mass fraction)
507-516 E10.4 --- XHs Surface abundance of H (mass fraction)
518-527 E10.4 --- XH2s Surface abundance of 2H (mass fraction)
529-538 E10.4 --- XHe3s Surface abundance of 3He (mass fraction)
540-549 E10.4 --- XHe4s Surface abundance of 4He (mass fraction)
551-560 E10.4 --- XLi6s Surface abundance of 6Li (mass fraction)
562-571 E10.4 --- XLi7s Surface abundance of 7Li (mass fraction)
573-582 E10.4 --- XBe7s Surface abundance of 7Be (mass fraction)
584-593 E10.4 --- XBe9s Surface abundance of 9Be (mass fraction)
595-604 E10.4 --- XB10s Surface abundance of 10B (mass fraction)
606-615 E10.4 --- XB11s Surface abundance of 11B (mass fraction)
617-626 E10.4 --- XC12s Surface abundance of 12C (mass fraction)
628-637 E10.4 --- XC13s Surface abundance of 13C (mass fraction)
639-648 E10.4 --- XC14s Surface abundance of 14C (mass fraction)
650-659 E10.4 --- XN14s Surface abundance of 14N (mass fraction)
661-670 E10.4 --- XO16s Surface abundance of 16O (mass fraction)
672-681 E10.4 --- XO17s Surface abundance of 17O (mass fraction)
683-692 E10.4 --- XO18s Surface abundance of 18O (mass fraction)
694-703 E10.4 --- XF19s Surface abundance of 19F (mass fraction)
705-714 E10.4 --- XNe20s Surface abundance of 20Ne (mass fraction)
716-725 E10.4 --- XNe21s Surface abundance of 21Ne (mass fraction)
727-736 E10.4 --- XNe22s Surface abundance of 22Ne (mass fraction)
738-747 E10.4 --- XNa23s Surface abundance of 23Na (mass fraction)
749-758 E10.4 --- XMg24s Surface abundance of 24Mg (mass fraction)
760-769 E10.4 --- XMg25s Surface abundance of 25Mg (mass fraction)
771-780 E10.4 --- XMg26s Surface abundance of 26Mg (mass fraction)
782-791 E10.4 --- XAl26s Surface abundance of 26Al (mass fraction)
793-802 E10.4 --- XAl27s Surface abundance of 27Al (mass fraction)
804-813 E10.4 --- XSi28s Surface abundance of 28Si (mass fraction)
--------------------------------------------------------------------------------
Acknowledgements:
Nadege Lagarde, Nadege.Lagarde(at)unige.ch
References:
Charbonnel & Lagarde, Paper I 2010A&A...522A..10C 2010A&A...522A..10C
Lagarde et al., Paper II 2011A&A...536A..28L 2011A&A...536A..28L
(End) Patricia Vannier [CDS] 01-Sep-2012