TESTING MICROPHYSICS DATA

Przemysław WalczakJadwiga Daszyńska-DaszkiewiczUniwersytet Wrocławski Instytut Astronomiczny, Poland

Wrocław, 21.08.2013

θ Ophiuchiν Eridaniγ Pegasi

12 Lacertae

β CEPHEI STARS

ν pulsational frequency

f-parameter

ASTEROSEISMIC TOOLS

THE NONADIABATIC, COMPLEX PARAMETER f

f results from linear, nonadiabatic computations

of stellar oscillations

a ratio of the bolometric flux perturbation tothe radial displacement at the photosphere level

VALUES OF f DEPEND ON:

frequency,

stellar parameters, M, Teff

shape of eigenfunctions

chemical composition, (X, Z, mixture)

opacity

subphotospheric convection

rotation, if

METHOD OF DETERMINATION OF f

Daszyńska-Daszkiewicz, J., Dziembowski, W. A., Pamyatnykh, A. A, 2003, A&A 407, 999 (for δ Scuti stars)

Daszyńska-Daszkiewicz, J., Dziembowski, W. A., Pamyatnykh, A. A, 2005, A&A 441, 641 (for β Cephei stars)

METHOD OF DETERMINATION OF f

Daszyńska-Daszkiewicz, J., Dziembowski, W. A., Pamyatnykh, A. A, 2003, A&A 407, 999 (for δ Scuti stars)

Daszyńska-Daszkiewicz, J., Dziembowski, W. A., Pamyatnykh, A. A, 2005, A&A 441, 641 (for β Cephei stars)

OPACITY TABLES

OP: H, He, C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, Cr, Mn, Fe, Ni

(Seaton, 2005, MNRAS, 362, L1)

OPACITY TABLES

OP: H, He, C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, Cr, Mn, Fe, Ni

OPAL: H, He, C, N, O, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Ti, Cr, Mn,

Fe, Ni (Iglesias & Rogers 1996, ApJ 464, 943)

OPACITY TABLES

OP: H, He, C, N, O, Ne, Na, Mg, Al, Si, S, Ar, Ca, Cr, Mn, Fe, Ni

OPAL: H, He, C, N, O, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Ti, Cr, Mn,

Fe, Ni

LA: H, He, Li, Be, B, C, N, O, F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn(Magee et al. 1995, in ASP Conf. Ser. 78,

51)

5M

10M

θ OPHIUCHI

HD 157056 V = 3.25 mag B2IV

Briquet, M., Lefever, K., Uytterhoeven, K., Aerts, C. , 2005, MNRAS, 362, 619Handler, G., Shobbrook, R. R., Mokgwetsi, T., 2005, MNRAS 362, 612

θ OPHIUCHI

HD 157056 V = 3.25 mag B2IV

Briquet, M., Lefever, K., Uytterhoeven, K., Aerts, C. , 2005, MNRAS, 362, 619Handler, G., Shobbrook, R. R., Mokgwetsi, T., 2005, MNRAS 362, 612

θ OPHIUCHI ν3= 7.4677 c/d l=0, ν6= 7.8742 c/d l=1

θ OPHIUCHI

OP (Seaton 2005)

ν3= 7.4677 c/d l=0, ν6= 7.8742 c/d l=1

θ OPHIUCHI ν3= 7.4677 c/d l=0, ν6= 7.8742 c/d l=1

θ OPHIUCHI

OP (Seaton 2005)

ν3= 7.4677 c/d l=0, ν6= 7.8742 c/d l=1

γ PEGASI

HD 886 V=2.83 mag B2IV

Handler, G.: 2009, MNRAS 398, 1339; Handler, G., Matthews, J.M., Eaton, J.A. et al.: 2009, ApJ 698, 56

γ PEGASI

HD 886 V=2.83 mag B2IV

Handler, G.: 2009, MNRAS 398, 1339; Handler, G., Matthews, J.M., Eaton, J.A. et al.: 2009, ApJ 698, 56

γ PEGASI ν1=6.58974 c/d l=0, ν5=6.01616 c/d l=1

γ PEGASI ν1=6.58974 c/d l=0, ν5=6.01616 c/d l=1

γ PEGASI ν1=6.58974 c/d l=0, ν5=6.01616 c/d l=1

12 Lacertae

HD 214993 V = 5.228 mag B2III

Desmet M., Briquet M., Thoul A., et al., 2009, MNRAS,396, 1460Handler, G., Jerzykiewicz, M., Rodriguez, E., at al., 2006, MNRAS, 365, 327

12 Lacertae

HD 214993 V = 5.228 mag B2III

Desmet M., Briquet M., Thoul A., et al., 2009, MNRAS,396, 1460Handler, G., Jerzykiewicz, M., Rodriguez, E., at al., 2006, MNRAS, 365, 327

12 Lacertae ν4=5.334357 c/d l=0, ν2=5.066346 c/d l=1

12 Lacertae ν4=5.334357 c/d l=0, ν2=5.066346 c/d l=1

12 Lacertae ν4=5.334357 c/d l=0, ν2=5.066346 c/d l=1

12 Lacertae ν4=5.334357 c/d l=0, ν2=5.066346 c/d l=1Morel T., Butler K., Aerts C., Neiner C., Briquet M., 2006, A&A, 457, 651

12 Lacertae ν4=5.334357 c/d l=0, ν2=5.066346 c/d l=1

50%

12 Lacertae ν4=5.334357 c/d l=0, ν2=5.066346 c/d l=1

50%

ν ERIDANI

HD 29248 V = 3.92 mag B2III

Aerts C., de Cat P., Handler G., et al., 2004, MNRAS, 347, 463Jerzykiewicz M., Handler G., Shobbrook R. R., et al., 2005, MNRAS 360, 619

ν ERIDANI

HD 29248 V = 3.92 mag B2III

Aerts C., de Cat P., Handler G., et al., 2004, MNRAS, 347, 463Jerzykiewicz M., Handler G., Shobbrook R. R., et al., 2005, MNRAS 360, 619

ν ERIDANI ν1 = 5.7632828 c/d l=0, ν4 = 5.6372470 c/d l=1, ν6 = 6.243847 c/d l=1

ν ERIDANI ν1 = 5.7632828 c/d l=0, ν4 = 5.6372470 c/d l=1, ν6 = 6.243847 c/d l=1

ν ERIDANI ν1 = 5.7632828 c/d l=0, ν4 = 5.6372470 c/d l=1, ν6 = 6.243847 c/d l=1

ν ERIDANI ν1 = 5.7632828 c/d l=0

ν ERIDANI νB=0.61440 c/d, l=2

Summary

θ Oph: OPAL(LA) γ Peg: no preferences 12 Lac: OP ν Eri:

High frequency modes: OPAL/LA Low frequency mode: OP

LA – excitation problems

Mass: 8-17 MsunSpectral type: O8-B6Light amplitudes:  0.01 - 0.3 magnitudesPeriods: 0.1 - 0.6 days (~2 – 15 hours)

β CEPHEI STARS