Photo taken in France during the 1999 solar eclipse
Photo taken in France during the 1999 solar eclipse

The stellar atmosphere is the outer region of the volume of a star, lying above the stellar core, radiation zone and convection zone.

Overview

The stellar atmosphere is divided into several regions of distinct character:

During a total solar eclipse, the photosphere of the Sun is obscured, revealing its atmosphere's other layers.[1] Observed during eclipse, the Sun's chromosphere appears (briefly) as a thin pinkish arc,[8] and its corona is seen as a tufted halo. The same phenomenon in eclipsing binaries can make the chromosphere of giant stars visible.[9]

See also

Notes

  1. ^ a b ""Beyond the Blue Horizon" – A Total Solar Eclipse Chase". 1999-08-05. Retrieved 2010-05-21. On ordinary days, the corona is hidden by the blue sky, since it is about a million times fainter than the layer of the sun we see shining every day, the photosphere.
  2. ^ Mariska, J.T. (1992). The solar transition region. Cambridge Astrophysics Series. Cambridge University Press. ISBN 978-0-521-38261-8.
  3. ^ a b Lang, K.R. (September 2006). "5.1 MAGNETIC FIELDS IN THE VISIBLE PHOTOSPHERE". Sun, earth, and sky (2nd ed.). Springer. p. 81. ISBN 978-0-387-30456-4. this opaque layer is the photosphere, the level of the Sun from which we get our light and heat
  4. ^ Mariska, J.T. (1992). The solar transition region. p. 60. ISBN 978-0-521-38261-8. 100 km suggested by average models
  5. ^ R.C. Altrock (2004). "The Temperature of the Low Corona During Solar Cycles 21–23". Solar Physics. 224 (1–2): 255. Bibcode:2004SoPh..224..255A. doi:10.1007/s11207-005-6502-4. S2CID 121468084.
  6. ^ "The Sun's Corona – Introduction". NASA. Retrieved 2010-05-21. Now most scientists believe that the heating of the corona is linked to the interaction of the magnetic field lines.
  7. ^ Takashi Tsuji, Infrared Spectra and Visibilities as Probes of the Outer Atmospheres of Red Supergiant Stars, The Astrophysical Journal (2006)
  8. ^ Lewis, J.S. (2004-02-23). Physics and chemistry of the solar system (Second ed.). Elsevier Academic Press. p. 87. ISBN 978-0-12-446744-6. The dominant color is influenced by the Balmer radiation of atomic hydrogen
  9. ^ Griffin, R.E. (2007-08-27). Hartkopft, W.I.; Guinan, E.F. (eds.). Only Binary Stars Can Help Us Actually SEE a Stellar Chromosphere. Proceedings of the International Astronomical Union. Vol. 2 (1 ed.). Cambridge University Press. p. 460. doi:10.1017/S1743921307006163. ISBN 978-0-521-86348-3.
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