ConferencePaper
Proceedings of the International Astronomical Union  (2006)

Near-infrared photometry of the Galactic globular cluster NGC 6441

Dall’Ora M.; Marconi, M; Ripepi, V; Storm, J; Bono, G; Caputo F.; Stetson, P. B.; Andreuzzi G.; Buonanno R.; Piersimoni, A; Monelli, M; Vanzi L.; Vivas, A. K.

Abstract

We present new near-infrared Ks photometry of the interesting Galactic globular cluster NGC 6441. The optical-NIR color-magnitude diagram shows evolutionary features that seem to agree with a canonical evolutionary framework. The K-band Period-Luminosity-Metallicity relation of RR Lyrae stars gives a distance estimate of 15.510.07 that is slightly larger previous estimates. © 2007 International Astronomical Union.

Más información

Título de la Revista: Proceedings of the International Astronomical Union
Volumen: 2
Número: S241
Editorial: Cambridge University Press
Fecha de publicación: 2006
Página de inicio: 241
Página final: 242
URL: http://www.scopus.com/inward/record.url?eid=2-s2.0-37149017923&partnerID=q2rCbXpz