Paczynski yıldız modellemesinde kullanılmak için opaklık tabloları ve onların yıldız evrimlerine etkileri
Öz
Yıldız modellemede Paczyski ’nin ücretsiz programı GOB’a uygulanabilir bir formatta kullanmak için opaklık tabloları oluşturduk. Tablolarımız, Lagrange interpolasyon yöntemi kullanılarak düşük metal içerikli zarflar için Allard ve Weiss ’in tablolarından elde edilmiştir. Bu, verilen hidrojen (X ), helyum (Y) ve metallerin (Z) oranları ile yoğunluk ve sıcaklığın sayısal bir fonksiyonu olarak doğru opaklıkların elde edilmesini sağlar. Inlek ve grubu opaklık etkilerini yüksek kalitede modern gözlemsel verilerden kontrol etmenin bağımsız olarak mümkün olduğunu göstermiştir. Bu tablolar bu tarz amaçlar için yararlı olacaktır.
Anahtar Kelimeler
Kaynakça
- Schwarzschild, M., Structure and evolution of the stars, Princeton University Press, New Jersey, (1958).
- Carson, T.R., Analytic formulae for Coulomb dipole transitions, Astronomy and Astrophysics Supplement Series,75, 385-389, (1988).
- Iglesias, C. A., Rogers, F. J., Updated opal opacities, The Astrophysical Journal, 464, 943-953, ( 1996).
- Peter L. Smith, Claas Heise, Jim R. Esmond, Robert L. Kurucz https://www.cfa.harvard.edu/amp/ampdata/kurucz23/sekur.html, (29.01.2019)
- Rogers, F.J.& Iglesias, Iglesias, C. A., Radiative atomic Rosseland mean opacity tables, The Astrophysical Journal Supplement Series,79, 507-568, (1992).
- Badnell, N.R., Bautista, M.A., Bulter, K., Delahaye, F., Mendoza, C., Palmeri, P., Zeippen, C.J., Seaton, M.J., Updated opacities from the opacity project, Monthly Notices of the Royal Astronomical Society, 360, 458-464, ( 2005).
- Blancard, C., Cosse, P., Faussurier,G., Solar mixture opacity calculations using detailed configuration and level accounting treatments, The Astrophysical Journal, 745, 10, (2012).
- Mondet,G., Blancard, C., Cosse, P., Faussurier,G., Opacity calculations for solar mixtures, The Astrophysical Journal Supplement Series, 220, 2, ( 2015).
- Allard, F., https://opalopacity.llnl.gov/existing.html, (29.01.2019).
- Weiss, A., https://opalopacity.llnl.gov/existing.html, (29.01.2019).
- Inlek, G., Boke, A., Yılmaz, O., Budding, E., Effects of opacity on stellar radii and their relevance to observational data, Turkish Journal of Physics, 32, 65-77, ( 2008).
- Paczynski,B., Acta Astronomica, 2, 20, (1970).
- Young, P. A., Mamajek, E. E., Arnett, D., Liebert, J., Observational Tests and Predictive Stellar Evolution, The Astrophysical Journal, 556, 230-244, ( 2001).
- Mathews, J.H., Numerical Methods For Mathematics Science and Engineering, A Simon and Schuster Co., New Jersey, (1992).
- Huebner, W. F., Merts, A. L., Magee, N. H., and Argo, M. F., Los Alamos Scientific Report LA-6760., (1977).
- Colgan, J., Kilcrease,D.P., Magee, N.H., et al., A New Generation of Los Alamos Opacity Tables, The Astrophysical Journal, 817, 116, ( 2016).
Öz
We have constructed opacity tables for using in stellar modelling in a format particularly applicable to the Paczynski freeware program GOB. Our tables are derived from those of Allard and Weiss for lower metal content envelopes, using the Lagrange interpolation method. This allows accurate opacities to be given as numerical functions of density and temperature with given proportions of hydrogen (X), helium (Y), and ‘metals’ (Z). Inlek et al. showed that it is possible independently to check opacity effects from modern high-quality observational data. These tables will be useful for such purposes.
Anahtar Kelimeler
Kaynakça
- Schwarzschild, M., Structure and evolution of the stars, Princeton University Press, New Jersey, (1958).
- Carson, T.R., Analytic formulae for Coulomb dipole transitions, Astronomy and Astrophysics Supplement Series,75, 385-389, (1988).
- Iglesias, C. A., Rogers, F. J., Updated opal opacities, The Astrophysical Journal, 464, 943-953, ( 1996).
- Peter L. Smith, Claas Heise, Jim R. Esmond, Robert L. Kurucz https://www.cfa.harvard.edu/amp/ampdata/kurucz23/sekur.html, (29.01.2019)
- Rogers, F.J.& Iglesias, Iglesias, C. A., Radiative atomic Rosseland mean opacity tables, The Astrophysical Journal Supplement Series,79, 507-568, (1992).
- Badnell, N.R., Bautista, M.A., Bulter, K., Delahaye, F., Mendoza, C., Palmeri, P., Zeippen, C.J., Seaton, M.J., Updated opacities from the opacity project, Monthly Notices of the Royal Astronomical Society, 360, 458-464, ( 2005).
- Blancard, C., Cosse, P., Faussurier,G., Solar mixture opacity calculations using detailed configuration and level accounting treatments, The Astrophysical Journal, 745, 10, (2012).
- Mondet,G., Blancard, C., Cosse, P., Faussurier,G., Opacity calculations for solar mixtures, The Astrophysical Journal Supplement Series, 220, 2, ( 2015).
- Allard, F., https://opalopacity.llnl.gov/existing.html, (29.01.2019).
- Weiss, A., https://opalopacity.llnl.gov/existing.html, (29.01.2019).
- Inlek, G., Boke, A., Yılmaz, O., Budding, E., Effects of opacity on stellar radii and their relevance to observational data, Turkish Journal of Physics, 32, 65-77, ( 2008).
- Paczynski,B., Acta Astronomica, 2, 20, (1970).
- Young, P. A., Mamajek, E. E., Arnett, D., Liebert, J., Observational Tests and Predictive Stellar Evolution, The Astrophysical Journal, 556, 230-244, ( 2001).
- Mathews, J.H., Numerical Methods For Mathematics Science and Engineering, A Simon and Schuster Co., New Jersey, (1992).
- Huebner, W. F., Merts, A. L., Magee, N. H., and Argo, M. F., Los Alamos Scientific Report LA-6760., (1977).
- Colgan, J., Kilcrease,D.P., Magee, N.H., et al., A New Generation of Los Alamos Opacity Tables, The Astrophysical Journal, 817, 116, ( 2016).
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Bölüm | Araştırma Makalesi |
| Yazarlar | |
| Yayımlanma Tarihi | 28 Haziran 2019 |
| Gönderilme Tarihi | 27 Aralık 2018 |
| Yayımlandığı Sayı | Yıl 2019 |