Computer Science
Scientific paper
May 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980cpsp.book..293d&link_type=abstract
In NASA. Goddard Space Flight Center Current Probl. in Stellar Pulsation Instabilities p 293-310 (SEE N80-25229 15-90)
Computer Science
9
Color, Lyra Constellation, Stellar Structure, Variable Stars, Shock Waves, Stellar Atmospheres, Stellar Luminosity, Stellar Mass, Tables (Data)
Scientific paper
A hydrodynamically pulsating 0.6 solar mass model of a typical RR Lyrae variable was studied with a radiation transport-hydrodynamic computer program to predict theoretical T3 and colors at many phases and to find the proper methods for getting mean colors and the consequent mean effective temperatures. The variable Eddington radiation approximation method was used with gray and with multifrequency absorption coefficients to represent the radiation flow in the outer optically thin layers. Comparison between observed and computed B-V colors indicate that these low Z population 2 models are reasonably accurate using King 1A composition opacities. The well known Oke, Giver, and Searle relation between B-V and Te reproduced. Mean colors were found by four different averaging methods. The method that gives a mean color and the mean Te closest to the nonpulsating model was the separate intensity means of B and V.
Cox Arthur N.
Davis Cecil G.
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