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Year 2020, Volume: 1 Issue: 2, 509 - 511, 11.12.2020

Abstract

References

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TESS (TASC) hedef listesinden seçilen yıldızların asterosismik incelenmesi

Year 2020, Volume: 1 Issue: 2, 509 - 511, 11.12.2020

Abstract

Yıldızların titreşimleri, özellikle güneş benzeri titreşimler, yıldızların iç yapı ve evrimini anlamamız adına önemli bir çığır açmıştır. Araştırmada NASA TESS projesi kapsamında belirlenen hedef yıldız listesi içerisinden güneş benzeri titreşim göstermesi beklenen 10 yıldız incelenmiştir. Literatürdeki fotometrik ve tayf verilerinden elde edilen parametreler ($[Fe/H]$, $\log{g}$, $d$, $T_{\rm eff}$ vb.) kullanılarak $M$, $R$ gibi salt parametreler hesaplanmış ve bu parametreler kullanılarak yıldız iç yapı modelleri MESA evrim kodu kullanılarak yapılmıştır. Elde edilen modellerin frekansları ADIPLS paketi kullanılarak hesaplanmıştır. Her bir yıldız için frekanslar arasındaki büyük ayrılma ve maksimum genlik frekansı hesaplanmıştır.

References

  • Baglin A., Michel E., Auvergne M., COROT Team, Scientific Objectives for a Minisat: CoRoT, 2006, ESA Special Publication, 1306, 33
  • Borucki W. J., Koch D., Basri G., ve ark., Kepler Planet-Detection Mission: Introduction and First Results , 2010, Science, 327, 977
  • Brown T. M, Gilliland R. L.,Noyes R. W., Ramsey L. W., Detection of possible p-mode oscillations on Procyon, 1991, ApJ, 368, 599
  • Chaplin, W.J.,Elsworth, Y., Isaak, G.R., Miller, B.A., New, R., Skew-symmetric solar P modes in low-l BiSON data, 1999, MNRAS, 308, 424
  • Christensen-Dalsgaard J.,ADIPLS-the Aarhus adiabatic oscillation package, 2008b, Ap&SS, 316, 13
  • Gaia Collaboration, Brown A. G. A., ve ark., Gaia Data Release 2, Summary of the contents and survey properties, 2018, A&A, 616, A1
  • Kjeldsen, H.,Bedding, T. R., Amplitudes of stellar oscillations: the implications for asteroseismology, 1995, A&A, 293, 87
  • van Leeuwen, F., Validation of the new Hipparcos reduction, 2007, 474, 653
  • Paxton B., Bildstein L., Dotter A., ve ark., Modules for Experiments in Stellar Astrophysics (MESA), 2011, ApJS, 192, 3
  • Sullivan P. W. ve ark., The Transiting Exoplanet Survey Satellite: Simulations of Planet Detections and Astrophysical False Positives , 2015, ApJ, 809, 77
  • Tassoul, M.,Asymptotic approximations for stellar nonradial pulsations, 1980, ApJS, 43, 469
  • Ulrich R.K., Determination of stellar ages from asteroseismology, 1986, ApJ, 306, L37
  • Yıldız M., Çelik Orhan Z., Aksoy Ç., Ok S., Fundamental properties of solar-like oscillating stars from frequencies of minimum $\Delta\nu$ - I. Model computations for solar composition, 2014, MNRAS, 441, 2148
There are 13 citations in total.

Details

Primary Language Turkish
Subjects Astronomical Sciences (Other)
Journal Section Conference Paper
Authors

Sibel Örten This is me

Mutlu Yıldız This is me

Publication Date December 11, 2020
Submission Date February 19, 2019
Acceptance Date September 3, 2019
Published in Issue Year 2020 Volume: 1 Issue: 2

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TJAA is a publication of Turkish Astronomical Society (TAD).