[mesa-users] alpha enhacement

Aaron Dotter aaron.dotter at gmail.com
Sun Oct 13 23:38:57 EDT 2013


Hi,

The low-T opacity files for the GS98+alpha are all on Jason's webpage:

http://webs.wichita.edu/physics/opacity/

Aaron



On Mon, Oct 14, 2013 at 6:10 AM, Bill Paxton <paxton at kitp.ucsb.edu> wrote:

> Hi Andrea,
>
> There were already several kap input data files sitting around unused in
> kap/preprocessor/kap_input_data.   So I added them to the standard mesa
> list and turned the crank.   They are in 5532 if you'd like to play.
>
> note that I just turned the crank, and this is what came out.  I haven't
> checked the results, so users beware!!!
>
> new OPAL Type1 tables:
> gs98_aFe_m2
> gs98_aFe_p2
> gs98_aFe_p3
> gs98_aFe_p4
> gs98_aFe_p6
> gs98_aFe_p8
>
> new Ferguson lowT tables:
> lowT_fa05_gs98_aFe_m2
> lowT_fa05_gs98_aFe_p2
> lowT_fa05_gs98_aFe_p4
>
> If needed, we can ask Jason Ferguson for more files to match the full set
> of OPAL options.
>
> And of course if anyone wants to have other options such as OP or A09, I'm
> happy to add them if someone supplies the data in OPAL format.
>
> Cheers,
> Bill
>
>
> For reference, here are the abundances for these different options -- you
> can also find it in kap/preprocessor/kap_input_data/opal.
>
>  Element   Abundance - relative metal: number fraction   mass fraction
> atomic mass
>
> gs98
>    C     log(A)=        -----------------  0.245825        0.171836
> 12.01100
>    N     log(A)=        -----------------  0.061748        0.050335
> 14.00670
>    O     log(A)=        -----------------  0.501922        0.467356
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.089265        0.104831
> 20.17900
>    Na    log(A)=        -----------------  0.001562        0.002090
> 22.98977
>    Mg    log(A)=        -----------------  0.028224        0.039924
> 24.30500
>    Al    log(A)=        -----------------  0.002294        0.003603
> 26.98154
>    Si    log(A)=        -----------------  0.026954        0.044057
> 28.08550
>    P     log(A)=        -----------------  0.000235        0.000423
> 30.97376
>    S     log(A)=        -----------------  0.012602        0.023513
> 32.06000
>    Cl    log(A)=        -----------------  0.000141        0.000292
> 35.45300
>    Ar    log(A)=        -----------------  0.001865        0.004335
> 39.94800
>    K     log(A)=        -----------------  0.000100        0.000228
> 39.09830
>    Ca    log(A)=        -----------------  0.001670        0.003896
> 40.08000
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000070        0.000195
> 47.90000
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000369        0.001117
> 51.99600
>    Mn    log(A)=        -----------------  0.000244        0.000779
> 54.93800
>    Fe    log(A)=        -----------------  0.023517        0.076433
> 55.84700
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.001393        0.004757
> 58.70000
>
> gs98_aFe_m2
>    C     log(A)=        -----------------  0.324802        0.229771
> 12.01070
>    N     log(A)=        -----------------  0.081587        0.067306
> 14.00670
>    O     log(A)=        -----------------  0.418427        0.394295
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.076141        0.090494
> 20.17970
>    Na    log(A)=        -----------------  0.002049        0.002775
> 22.98977
>    Mg    log(A)=        -----------------  0.023530        0.033683
> 24.30500
>    Al    log(A)=        -----------------  0.003032        0.004818
> 26.98154
>    Si    log(A)=        -----------------  0.022471        0.037170
> 28.08550
>    P     log(A)=        -----------------  0.000356        0.000650
> 30.97376
>    S     log(A)=        -----------------  0.009809        0.018522
> 32.06500
>    Cl    log(A)=        -----------------  0.000187        0.000391
> 35.45300
>    Ar    log(A)=        -----------------  0.002464        0.005796
> 39.94800
>    K     log(A)=        -----------------  0.000132        0.000304
> 39.09830
>    Ca    log(A)=        -----------------  0.001385        0.003270
> 40.07800
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000054        0.000152
> 47.86700
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000480        0.001470
> 51.99610
>    Mn    log(A)=        -----------------  0.000332        0.001074
> 54.93805
>    Fe    log(A)=        -----------------  0.031018        0.102027
> 55.84500
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.001744        0.006031
> 58.69340
>
> gs98_aFe_p2
>    C     log(A)=        -----------------  0.177908        0.123333
> 12.01070
>    N     log(A)=        -----------------  0.044688        0.036127
> 14.00670
>    O     log(A)=        -----------------  0.575698        0.531622
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.100045        0.116520
> 20.17970
>    Na    log(A)=        -----------------  0.001123        0.001489
> 22.98977
>    Mg    log(A)=        -----------------  0.032374        0.045414
> 24.30500
>    Al    log(A)=        -----------------  0.001660        0.002586
> 26.98154
>    Si    log(A)=        -----------------  0.030917        0.050117
> 28.08550
>    P     log(A)=        -----------------  0.000195        0.000349
> 30.97376
>    S     log(A)=        -----------------  0.013495        0.024972
> 32.06500
>    Cl    log(A)=        -----------------  0.000102        0.000209
> 35.45300
>    Ar    log(A)=        -----------------  0.001350        0.003112
> 39.94800
>    K     log(A)=        -----------------  0.000074        0.000167
> 39.09830
>    Ca    log(A)=        -----------------  0.001906        0.004410
> 40.07800
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000074        0.000205
> 47.86700
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000263        0.000790
> 51.99610
>    Mn    log(A)=        -----------------  0.000182        0.000577
> 54.93800
>    Fe    log(A)=        -----------------  0.016990        0.054765
> 55.84500
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.000955        0.003237
> 58.69340
>
> gs98_aFe_p3
>    C     log(A)=        -----------------  0.148818        0.102726
> 12.01070
>    N     log(A)=        -----------------  0.037381        0.030092
> 14.00670
>    O     log(A)=        -----------------  0.606255        0.557461
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.105355        0.122187
> 20.17970
>    Na    log(A)=        -----------------  0.000939        0.001241
> 22.98977
>    Mg    log(A)=        -----------------  0.034092        0.047622
> 24.30500
>    Al    log(A)=        -----------------  0.001389        0.002154
> 26.98154
>    Si    log(A)=        -----------------  0.032558        0.052552
> 28.08550
>    P     log(A)=        -----------------  0.000163        0.000290
> 30.97376
>    S     log(A)=        -----------------  0.014212        0.026190
> 32.06500
>    Cl    log(A)=        -----------------  0.000086        0.000174
> 35.45300
>    Ar    log(A)=        -----------------  0.001129        0.002592
> 39.94800
>    K     log(A)=        -----------------  0.000061        0.000136
> 39.09830
>    Ca    log(A)=        -----------------  0.002008        0.004624
> 40.07800
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000078        0.000215
> 47.86700
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000220        0.000658
> 51.99610
>    Mn    log(A)=        -----------------  0.000152        0.000481
> 54.93800
>    Fe    log(A)=        -----------------  0.014212        0.045614
> 55.84500
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.000799        0.002696
> 58.69340
>
> gs98_aFe_p4
>    C     log(A)=        -----------------  0.123435        0.084924
> 12.01070
>    N     log(A)=        -----------------  0.031005        0.024876
> 14.00670
>    O     log(A)=        -----------------  0.633051        0.580170
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.110011        0.127160
> 20.17970
>    Na    log(A)=        -----------------  0.000779        0.001026
> 22.98977
>    Mg    log(A)=        -----------------  0.035599        0.049561
> 24.30500
>    Al    log(A)=        -----------------  0.001152        0.001781
> 26.98154
>    Si    log(A)=        -----------------  0.033997        0.054693
> 28.08550
>    P     log(A)=        -----------------  0.000135        0.000240
> 30.97376
>    S     log(A)=        -----------------  0.014840        0.027253
> 32.06500
>    Cl    log(A)=        -----------------  0.000071        0.000144
> 35.45300
>    Ar    log(A)=        -----------------  0.000936        0.002142
> 39.94800
>    K     log(A)=        -----------------  0.000050        0.000112
> 39.09830
>    Ca    log(A)=        -----------------  0.002096        0.004812
> 40.07800
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000082        0.000225
> 47.86700
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000183        0.000545
> 51.99610
>    Mn    log(A)=        -----------------  0.000126        0.000397
> 54.93805
>    Fe    log(A)=        -----------------  0.011788        0.037709
> 55.84500
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.000663        0.002229
> 58.69340
>
> gs98_aFe_p6
>    C     log(A)=        -----------------  0.083106        0.056860
> 12.01070
>    N     log(A)=        -----------------  0.020875        0.016655
> 14.00670
>    O     log(A)=        -----------------  0.675511        0.615642
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.117390        0.134934
> 20.17970
>    Na    log(A)=        -----------------  0.000524        0.000686
> 22.98977
>    Mg    log(A)=        -----------------  0.037987        0.052592
> 24.30500
>    Al    log(A)=        -----------------  0.000776        0.001193
> 26.98154
>    Si    log(A)=        -----------------  0.036277        0.058037
> 28.08550
>    P     log(A)=        -----------------  0.000091        0.000161
> 30.97376
>    S     log(A)=        -----------------  0.015836        0.028920
> 32.06500
>    Cl    log(A)=        -----------------  0.000048        0.000097
> 35.45300
>    Ar    log(A)=        -----------------  0.000630        0.001434
> 39.94800
>    K     log(A)=        -----------------  0.000034        0.000076
> 39.09830
>    Ca    log(A)=        -----------------  0.002237        0.005107
> 40.07800
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000087        0.000237
> 47.86700
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000123        0.000364
> 51.99610
>    Mn    log(A)=        -----------------  0.000085        0.000266
> 54.93805
>    Fe    log(A)=        -----------------  0.007936        0.025247
> 55.84500
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.000446        0.001491
> 58.69300
>
> gs98_aFe_p8
>    C     log(A)=        -----------------  0.054754        0.037316
> 12.01070
>    N     log(A)=        -----------------  0.013753        0.010931
> 14.00670
>    O     log(A)=        -----------------  0.705361        0.640342
> 15.99940
>    F     log(A)=
>    Ne    log(A)=        -----------------  0.122578        0.140349
> 20.17970
>    Na    log(A)=        -----------------  0.000345        0.000450
> 22.98977
>    Mg    log(A)=        -----------------  0.039665        0.054702
> 24.30500
>    Al    log(A)=        -----------------  0.000511        0.000782
> 26.98154
>    Si    log(A)=        -----------------  0.037880        0.060366
> 28.08550
>    P     log(A)=        -----------------  0.000060        0.000105
> 30.97376
>    S     log(A)=        -----------------  0.016536        0.030080
> 32.06500
>    Cl    log(A)=        -----------------  0.000032        0.000064
> 35.45300
>    Ar    log(A)=        -----------------  0.000415        0.000941
> 39.94800
>    K     log(A)=        -----------------  0.000022        0.000049
> 39.09830
>    Ca    log(A)=        -----------------  0.002336        0.005313
> 40.07800
>    Sc    log(A)=
>    Ti    log(A)=        -----------------  0.000091        0.000247
> 47.86700
>    V     log(A)=
>    Cr    log(A)=        -----------------  0.000081        0.000239
> 51.99610
>    Mn    log(A)=        -----------------  0.000056        0.000175
> 54.93805
>    Fe    log(A)=        -----------------  0.005229        0.016570
> 55.84500
>    Co    log(A)=
>    Ni    log(A)=        -----------------  0.000294        0.000979
> 58.69300
>
>
>
>
>
> On Oct 13, 2013, at 6:59 AM, andrea miglio wrote:
>
> Dear Bill, Radek,
> having followed your discussions on opacity tables, I realized that soon
> we are going to push the red-giants model comparisons to metal poor stars,
> and it would be great if we could start computing models with alpha
> enhanced mixtures using OPAL type 1,2 tables and relative AF low-T
> opacities.
>
> I can create/download all relevant tables from the web: I was wondering if
> I should then follow a known procedure to generate tables for MESA, or if I
> can send the tables to you.
>
> many thanks,
>
> regards,
>
>
> Andrea
>
>
>
>
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