Principal components analysis of spectral data. II - Error analysis and applications to interstellar reddening, luminosity classification of M supergiants, and the analysis of VV Cephei stars

Details Principal components analysis of spectral data. II - Error analysis and applications to interstellar reddening, luminosity classification of M supergiants, and the analysis of VV Cephei stars Principal components analysis of spectral data. II - Error analysis and applications to interstellar reddening, luminosity classification of M supergiants, and the analysis of VV Cephei stars

Mar 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...51..463w&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 51, Mar. 1983, p. 463-478.

Astronomy and Astrophysics

Astrophysics

8

Error Analysis, Interstellar Extinction, M Stars, Multivariate Statistical Analysis, Spectrum Analysis, Stellar Spectra, Supergiant Stars, Astronomical Photometry, Binary Stars, Blue Stars, Classifications, Random Noise, Regression Analysis, Stellar Color, Stellar Luminosity, Tables (Data)

Scientific paper

In a further exploration of the methodology of principal components analysis, the general problem of the detection of non-conforming spectra is discussed. As an example, synthetically reddened photometric measures of M super-giants are analysed. Methods of removing non-linearities from the data are compared and the theoretical error analysis of the previous paper is confirmed by the introduction of artificial gaussian noise.
Luminosity effects for M Ib and Ib supergiants are synthesized for wide-band photometry and found to be undetectable in the presence of normal errors of observation. The method is applied to a set of field stars for which spectral types and color-excesses are already available, and methods of inferring observational errors are discussed.
The colors of binary stars consisting of an M supergiant and a B-type star are synthesized, forming a four-parameter array. The transformation coefficients derived from a PCA of these data are applied to the analysis of seven VV Cephei stars. Color-excesses of the systems and properties of the B-type components are derived and are compared with earlier studies.

Affiliated with

Also associated with

No associations

Rating

Principal components analysis of spectral data. II - Error analysis and applications to interstellar reddening, luminosity classification of M supergiants, and the analysis of VV Cephei stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Principal components analysis of spectral data. II - Error analysis and applications to interstellar reddening, luminosity classification of M supergiants, and the analysis of VV Cephei stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Principal components analysis of spectral data. II - Error analysis and applications to interstellar reddening, luminosity classification of M supergiants, and the analysis of VV Cephei stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1464949