Color--Magnitude Diagrams and Luminosity Functions down to the Hydrogen Burning Limit. III. A Preliminary HST Study of NGC6791

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dc.creatorKing, I. R.
dc.creatorBedin, L. R.
dc.creatorPiotto, G.
dc.creatorCassisi, S.
dc.creatorAnderson, J.
dc.creator.
dc.date2005-04-28
dc.date.accessioned2026-07-07T11:29:44Z
dc.date.available2026-07-07T11:29:44Z
dc.descriptionUsing HST ACS/WFC images, we derive the color--magnitude diagram of the old, metal-rich open cluster NGC 6791 to nearly 29th magnitude in V, which is the neighborhood of the hydrogen-burning limit.Comparison with isochrones leads to a discussion of the distance modulus, the reddening, and the age of the cluster. By making a statistical correction for field stars we derive a preliminary luminosity function, and a very tentative mass function. The white dwarf sequence is clearly shown, and has been discussed in a separate paper.
dc.description21 pages, 8 figures. Accepted (25 April 2005) on AJ, in press for the August issue
dc.identifierhttps://arxiv.org/abs/astro-ph/0504627
dc.identifierhttp://arxiv.org/abs/astro-ph/0504627
dc.identifierAstron.J.130:626-634,2005
dc.identifierdoi:10.1086/431327
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196808
dc.subjectAstrophysics
dc.titleColor--Magnitude Diagrams and Luminosity Functions down to the Hydrogen Burning Limit. III. A Preliminary HST Study of NGC6791
dc.typetext

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