CYG OB1 Star Cluster Data

Description

Energy output and surface termperature for Star Cluster CYG OB1.

Usage

data("CYGOB1")

Format

A data frame with 47 observations on the following 2 variables.

logst

log survface termperature of the star.

logli

log light intensity of the star.

Details

The Hertzsprung-Russell (H-R) diagram forms the basis of the theory of stellar evolution. The diagram is essentially a plot of the energy output of stars plotted against their surface temperature. Data from the H-R diagram of Star Cluster CYG OB1, calibrated according to VanismaGreve1972 are given here.

Source

F. Vanisma and J. P. De Greve (1972), Close binary systems before and after mass transfer. Astrophysics and Space Science, 87, 377–401.

D. J. Hand, F. Daly, A. D. Lunn, K. J. McConway and E. Ostrowski (1994). A Handbook of Small Datasets, Chapman and Hall/CRC, London.

Examples

  data("CYGOB1", package = "HSAUR2")
  plot(logst ~ logli, data = CYGOB1)

Results

R version 3.3.1 (2016-06-21) -- "Bug in Your Hair"
Copyright (C) 2016 The R Foundation for Statistical Computing
Platform: x86_64-pc-linux-gnu (64-bit)

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> library(HSAUR2)
Loading required package: tools
> png(filename="/home/ddbj/snapshot/RGM3/R_CC/result/HSAUR2/CYGOB1.Rd_%03d_medium.png", width=480, height=480)
> ### Name: CYGOB1
> ### Title: CYG OB1 Star Cluster Data
> ### Aliases: CYGOB1
> ### Keywords: datasets
> 
> ### ** Examples
> 
> 
>   data("CYGOB1", package = "HSAUR2")
>   plot(logst ~ logli, data = CYGOB1)
> 
> 
> 
> 
> 
> 
> dev.off()
null device 
          1 
>