Automated supervised classification of variable stars - II. Application to the OGLE database

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Volume 494 / No 2 (February I 2009)

A&A, 494 2 (2009) 739-768

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Table 3:

Attributes used in each classification stage by the sequential classifier. Abbreviations used are as follows: log-firepresents the logarithm of the ith frequency; log-fi-fj is the logarithm of the ratio fi/fj; afi represents the sum of squares of the harmonic amplitudes in frequency i; log-*afihj*-t is the logarithm of the total amplitude of the jth harmonic of the ith frequency; log-*crfij* is the logarithm of the jth ratio of harmonic amplitudes of the ith frequency (j=0 corresponds to the ratio of the amplitude of the second harmonic over that of the first, j=1, to the ratio of the amplitude of the third harmonic over that of the first and so on); log-*crfihj*-fi'hj' represents the logarithm of the amplitude ratio between harmonics j and j' of frequencies i and i' respectively; *pdfij*is the jth phase difference between the various harmonics of the ith frequency (j=0 corresponds to the first and second harmonics, j=1, to the third and first harmonics, and so on); varrat represents the variance ratio defined in Paper I.
Stage	Classes and attributes
1	Eclipsing/non eclipsing
	log-f3, log-f2-f1, log-af1h1-t, log-crf10, log-crf15, log-crf20, log-crf25, log-crf32, log-crf33, pdf12, pdf13, pdf14, pdf23
2	Cepheids/non Cepheids
	log-f1, log-f2-f1, af1, af2, log-af1h1-t, log-af1h2-t, log-crf3h1-f1h1, log-crf10, log-crf11, log-crf14, pdf12, varrat
3	Red giants/non red giants
	log-f1, log-f2, log-f3, log-f2-f1, af1, af2, log-af1h1-t, log-af2h3-t, log-crf21, log-crf24, log-crf30
4	RR Lyrae/Non RR Lyrae
	log-f1, af1, log-af1h1-t, log-af3h1-t, log-crf3h1-f1h1, log-crf11, log-crf14, pdf12, pdf13
5	CLCEP/DMCEP/PTCEP/RVTAU
	log-f1, log-af1h1-t, log-af2h3-t, log-af2h4-t, log-af3h4-t, log-crf12, log-crf32, pdf12, varrat
6	MIRA/SR
	af1, log-af1h1-t, log-af1h3-t, log-af2h4-t, log-af3h3-t, varrat
7	RRAB/RRC/RRD
	log-f1, log-f2-f1, af1, log-af1h2-t, log-crf2h1-f1h1, log-crf10, pdf12, varrat
8	PVSG BE BCEP CP DSCUT ELL GDOR HAEBE HMXB LBOO LBV PTCEP ROAP SPB SXPHE TTAU WR FUORI PSDB
	log-f1, log-af2h1-t, log-crf2h1-f1h1, log-crf10, log-crf13

Source LaTeX | All tables | In the text

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