SPECTRAL CLASSIFICATION

[21] JASCHEK C, 1972, 50 INT ASTR UN S

[22] FUNDAMENTAL STELLAR PHOTOMETRY FOR STANDARDS OF SPECTRAL TYPE ON THE REVISED SYSTEM OF THE YERKES SPECTRAL ATLAS [J]. ASTROPHYSICAL JOURNAL, 1953, 117 (03) : 313 - 352

[23] Keenan P. C., 1971, 554 KITT PEAK NAT OB, P35

[24] KEENAN PC, 1963, BASIC ASTRONOMICAL D, pCH8

[25] WIDTH OF HALPHA AS DISCRIMINANT OF LUMINOSITY IN SPECTRA OF LATE-TYPE STARS [J]. ASTROPHYSICAL JOURNAL, 1964, 140 (01) : 235 - &

[26] PHOTOMETRY OF HIGH-LUMINOSITY M-TYPE STARS [J]. ASTROPHYSICAL JOURNAL, 1970, 162 (01) : 217 - &

[27] LESH JR, 1968, ASTROPHYS J SUPPL S, V17, P371, DOI 10.1086/190179

[28] DISCOVERIES ON SOUTHERN OBJECTIVE-PRISM PLATES .1. NEW HELIUM-RICH STARS [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1970, 82 (487) : 730 - +

[29] Morgan W. W., 1943, ATLAS STELLAR SPECTR

[30] STUDIES IN SPECTRAL CLASSIFICATION .I. HR DIAGRAM OF HYADES [J]. ASTROPHYSICAL JOURNAL, 1965, 141 (01) : 177 - &

[21] JASCHEK C, 1972, 50 INT ASTR UN S

[22] FUNDAMENTAL STELLAR PHOTOMETRY FOR STANDARDS OF SPECTRAL TYPE ON THE REVISED SYSTEM OF THE YERKES SPECTRAL ATLAS [J]. ASTROPHYSICAL JOURNAL, 1953, 117 (03) : 313 - 352

[23] Keenan P. C., 1971, 554 KITT PEAK NAT OB, P35

[24] KEENAN PC, 1963, BASIC ASTRONOMICAL D, pCH8

[25] WIDTH OF HALPHA AS DISCRIMINANT OF LUMINOSITY IN SPECTRA OF LATE-TYPE STARS [J]. ASTROPHYSICAL JOURNAL, 1964, 140 (01) : 235 - &

[26] PHOTOMETRY OF HIGH-LUMINOSITY M-TYPE STARS [J]. ASTROPHYSICAL JOURNAL, 1970, 162 (01) : 217 - &

[27] LESH JR, 1968, ASTROPHYS J SUPPL S, V17, P371, DOI 10.1086/190179

[28] DISCOVERIES ON SOUTHERN OBJECTIVE-PRISM PLATES .1. NEW HELIUM-RICH STARS [J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 1970, 82 (487) : 730 - +

[29] Morgan W. W., 1943, ATLAS STELLAR SPECTR

[30] STUDIES IN SPECTRAL CLASSIFICATION .I. HR DIAGRAM OF HYADES [J]. ASTROPHYSICAL JOURNAL, 1965, 141 (01) : 177 - &