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Title:
On the scale of photospheric convection in red giants and supergiants
Authors:
Schwarzschild, M.
Affiliation:
AA(Princeton University, New Observatory, Princeton, N.J.)
Publication:
Astrophysical Journal, vol. 195, Jan. 1, 1975, pt. 1, p. 137-144. (ApJ Homepage)
Publication Date:
01/1975
Category:
Astrophysics
Origin:
STI
NASA/STI Keywords:
Giant Stars, Late Stars, Photosphere, Solar Granulation, Supergiant Stars, Astronomical Models, Convective Flow, Gas Ionization, Stellar Mass Ejection, Stellar Winds
DOI:
10.1086/153313
Bibliographic Code:
1975ApJ...195..137S

Abstract

An attempt is made to estimate the sizes of the convective elements which dominate the brightness variations on the photospheres of red giants and supergiants. The data assembled permit the extreme hypothesis that these dominant convective elements are so large that only a modest number of them exists at any one time on the entire surface of such a star - in contrast with two million granules on the sun.

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Database: Astronomy
Physics
arXiv e-prints