CONFIRMATION AMONG VISUAL MULTIPLES OF AN INCREASE OF AP STARS WITH AGE

[1] OCCURRENCE OF ABNORMAL STARS IN OPEN CLUSTERS [J]. ASTROPHYSICAL JOURNAL, 1979, 230 (02) : 485 - 496

[2] H-R DIAGRAM OF NGC 2516 [J]. ASTRONOMICAL JOURNAL, 1969, 74 (06) : 813 - &

[3] ABT HA, 1970, IAU C, V4, P193

[4] AITKEN RG, 1932, CARNEGIE I WASHINGTO, V417

[5] BLAAUW A, 1963, STARS STELLAR SYSTEM, V3, P383

[6] BLANCO VM, 1968, PUB US NAVAL OBS, V27

[7] BORRA EF, 1982, ASTRON ASTROPHYS, V111, P117

[8] Echevarria J., 1979, Revista Mexicana de Astronomia y Astrofisica, V4, P287

[9] FREQUENCY OF PECULIAR A AND METALLIC-LINE STARS IN OPEN CLUSTERS [J]. ASTROPHYSICAL JOURNAL, 1976, 205 (03) : 807 - 822

[10] Hoffleit D., 1982, BRIGHT STAR CATALOGU

[1] OCCURRENCE OF ABNORMAL STARS IN OPEN CLUSTERS [J]. ASTROPHYSICAL JOURNAL, 1979, 230 (02) : 485 - 496

[2] H-R DIAGRAM OF NGC 2516 [J]. ASTRONOMICAL JOURNAL, 1969, 74 (06) : 813 - &

[3] ABT HA, 1970, IAU C, V4, P193

[4] AITKEN RG, 1932, CARNEGIE I WASHINGTO, V417

[5] BLAAUW A, 1963, STARS STELLAR SYSTEM, V3, P383

[6] BLANCO VM, 1968, PUB US NAVAL OBS, V27

[7] BORRA EF, 1982, ASTRON ASTROPHYS, V111, P117

[8] Echevarria J., 1979, Revista Mexicana de Astronomia y Astrofisica, V4, P287

[9] FREQUENCY OF PECULIAR A AND METALLIC-LINE STARS IN OPEN CLUSTERS [J]. ASTROPHYSICAL JOURNAL, 1976, 205 (03) : 807 - 822

[10] Hoffleit D., 1982, BRIGHT STAR CATALOGU