Henyey track


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Henyey track

[′hen·yē ‚trak]
(astronomy)
An almost horizontal track on the Hertzsprung-Russell diagram that a star of small mass follows in an early stage of evolution after leaving the Hayashi track and before reaching the main sequence, during which the star is almost wholly in radiative equilibrium.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The contraction towards dense cores, which must get rid of their increasing thermal energy through molecular line radiation, is treated, discussing also how development appears on a Hertzsprung-Russell diagram (in the case of low-mass stars)-e.g., the Hayashi and Henyey tracks which are followed before long-term evolution commences along the Main Sequence.