The RR Lyrae distance scale from near-infrared photometry: current results .

Bibcode
2006MmSAI..77..214D
Dall'Ora, M.; Bono, G.; Storm, J.; Caputo, F.; Andreuzzi, G.; Marconi, G.; Monelli, M.; Ripepi, V.; Stetson, P. B.; Testa, V.
Referencia bibliográfica

Memorie della Società Astronomica Italiana, v.77, p.214 (2006)

Fecha de publicación:
0
2006
Número de autores
10
Número de autores del IAC
1
Número de citas
7
Número de citas referidas
7
Descripción
We present new observational results on the RR Lyrae K-band Period-Luminosity relation (PLK). Data on the Galactic globular clusters NGC 3201 and NGC 4590 (M68), and on the Large Magellanic Cloud cluster Reticulum are shown. We compare the observed slopes of the PLK relations for these three clusters with those predicted by pulsational and evolutionary models, finding a fair agreement. Trusting on this finding we decided to adopt these theoretical calibrations to estimate the distance to the target clusters, finding a good agreement with optical-based RR Lyrae distances, but with a smaller formal scatter.
Tipo
Sin árbitro
Galaxias
Nubes de Magallanes

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