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Lists of photometric AM candidates The Geneva photometric m parameter (Nicolet and Cramer, 1982) is used inorder to select Am photometric candidates from the Rufener (1981)catalogue. Two lists are given, the first containing field stars and thesecond cluster stars. According to the photometric criteria thediffusion process probably responsible for the Am phenomenon takes placerather quickly as Am candidates are present in young clusters. It isconfirmed that the phenomenon is enhanced by low rotational velocity andhigh metallicity. The age seems to slightly affect the Am phenomenon.
| Bright southern stars of astrophysical interest The paper lists a number of bright peculiar stars in the SouthernHemisphere discovered on 20-A/mm spectrograms. Recent information isalso given for a few known peculiar objects. The lists include: oneLambda Boo star, 4 Hg and other Bp stars, 7 Am stars, 17 shell oremission-line stars, and 37 double-lined spectroscopic binaries, amongwhich are two triple-lined, four composite, eight variable or eclipsing,and three peculiar shell and/or emission-line systems.
| Four-colour and H BET photometry of some bright southern stars- II. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972MNRAS.160..155S&db_key=AST
| Variability of A and F main sequence stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971A&A....12..223J&db_key=AST
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Osservazione e dati astrometrici
Costellazione: | Vele |
Ascensione retta: | 09h23m44.80s |
Declinazione: | -37°45'26.0" |
Magnitudine apparente: | 6.48 |
Distanza: | 100.806 parsec |
Moto proprio RA: | -80 |
Moto proprio Dec: | 25.4 |
B-T magnitude: | 6.701 |
V-T magnitude: | 6.494 |
Cataloghi e designazioni:
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