mrfDepth (version 1.0.12)

stars: stars data

Description

Data corresponding to a Hertzsprung-Russel diagram of the star cluster CYG OB1 containing 47 stars in the direction of Cygnus. A typical Hertzsprung-Russel diagram shows the logarithm of the temperature in reverse order from high to low.

The data has been taken from Humphreys (1978) by C. Doom who calibrated them according to Vansina en De Greve (1982).

Usage

data(stars)

Format

Following variables are included:

LogTemp

Logarithm of the effective temperature at the star's surface.

LogLight

Logarithm of a star's light intensity.

References

Vansima F., De Greve J.P. (1982). Close binary systems before and after mass transfer. Astrophysics and Space Science, 87, 377--401.

Rousseeuw P.J., Leroy A. (1987). Robust Regression and Outlier Detection. New York: Wiley.

Examples

# NOT RUN {
data(stars)
plot(stars,xlim=rev(range(stars[,1])))
# }

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