DATA
In the spreadsheet “General Spectral Data”, the ‘Spectral Features’ column lists the spectral features present in the spectra for each star, and features are abbreviated; PC denotes a P Cygni profile and thus an outflow. The measured wind speed values appear next to the notation, BS indicates a bow shock and DP denotes a double peaked line suggesting a circum-stellar disc, The columns labeled ‘Emission red/blue’ indicates the presence of emission lines in the blue or red end of the spectrum, and if any relevant elements are present in emission, they are listed. In the spreadsheet “Balmer Decrement Data”, numbers such as ‘4100’ is a measure of wavelength in angstroms, while the numbers below that such as ‘4.1e-14’ is a measure of flux, in lumens. When an asterisk appears in the table, published values were substituted for incomplete data, or in the case of V1321 Ori, observed values were used, but could not be de-reddened due to sub-par spectra. In the spreadsheet ‘Relative Age Comparisons and Correlations,’ one is considered the youngest for ‘Relative Age.’ For ‘Emissive Severity’, one is considered the most emissive. For ‘Balmer Decrement, one is considered the most severe.
Data Spreadsheet
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