COUNTS AND COLORS OF FAINT STARS IN 5 FIELDS NEAR THE NORTH GALACTIC POLE

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dc.contributor.authorINFANTE, L
dc.date.accessioned2025-01-21T01:35:14Z
dc.date.available2025-01-21T01:35:14Z
dc.date.issued1994
dc.description.abstractFaint star number counts in the photographic J band and (B - V) colour distributions are presented for a 1.08 deg(2) field near the North Galactic Pole, Due to the excellent star/galaxy discrimination we count stars as faint as J = 23. We compare the number counts and colour distributions in 5 adjacent fields near SA57. The number counts and colour distributions are in very good agreement with previous data. However, we find that the large field-to-field scatter in the colour distributions, which we argue is real, might prevent us setting strong limits on Galactic structure. A simple two component standard model, Bahcall and Soneira (1984), fits the number counts reasonably well at the bright J < 21, but fails notably at the faint end, even if a third component is added, as in Reid and Majewski (1993). The standard models are in good agreement with both the number counts and colour distribution at 20 < V < 21. Although the standard models bimodal shape of the colour distribution compares well with the data at 21 < V < 21.5, the number counts of stars are underestimated.
dc.fuente.origenWOS
dc.identifier.issn0365-0138
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/97656
dc.identifier.wosidWOS:A1994PL59300013
dc.issue.numero2
dc.language.isoen
dc.pagina.final418
dc.pagina.inicio413
dc.revistaAstronomy & astrophysics supplement series
dc.rightsacceso restringido
dc.subjectGALAXY, STRUCTURE
dc.subjectGALAXY, STELLAR CONTENT
dc.subjectSTARS, STATISTICS
dc.titleCOUNTS AND COLORS OF FAINT STARS IN 5 FIELDS NEAR THE NORTH GALACTIC POLE
dc.typeartículo
dc.volumen107
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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