Tham khảo Sao dãy chính loại A

  1. ↑ Stellar Spectral Types, entry at hyperphysics.phy-astr.gsu.edu, accessed on line ngày 19 tháng 6 năm 2007.
  2. ↑ "An Introduction to Modern Astrophysics" by B.W Caroll and D.A Ostlie 1996 edition, chapter 8
  3. ↑ Empirical bolometric corrections for the main-sequence, G. M. H. J. Habets and J. R. W. Heintze, Astronomy and Astrophysics Supplement 46 (November 1981), pp. 193–237, Tables VII and VIII.
  4. ↑ SIMBAD, entries on Sirius A and Vega, accessed ngày 19 tháng 6 năm 2007.
  5. ↑ X-ray emission from A-type stars.
  6. ↑ Adelman, S. J. (2005). "The physical properties of normal A stars". Proceedings of the International Astronomical Union. 2004. doi:10.1017/S1743921304004314.
  7. ↑ Fundamental stellar photometry for standards of spectral type on the revised system of the Yerkes spectral atlas H.L. Johnson & W.W. Morgan, 1953, Astrophysical Journal, 117, 313
  8. ↑ MK ANCHOR POINTS, Robert F. Garrison
  9. 1 2 Spectral Classification, W.W. Morgan & P.C. Keenan, 1973, Annual Review of Astronomy and Astrophysics, vol. 11, p.29
  10. ↑ Revised MK Spectral Atlas for stars earlier than the sun, W.W. Morgan, W. W., H.A. Abt, J.W. Tapscott, 1978, Williams Bay: Yerkes Observatory, and Tucson: Kitt Peak National Observatory
  11. ↑ The early A type stars – Refined MK classification, confrontation with Stroemgren photometry, and the effects of rotation, R.O. Gray & R.F. Garrison, 1987, Astrophysical Journal Supplement Series, vol. 65, p. 581
  12. ↑ The late A-type stars – Refined MK classification, confrontation with Stromgren photometry, and the effects of rotation, R.O. Gray & R.F. Garrison, 1989, Astrophysical Journal Supplement Series, vol. 70, p. 623