Near-Infrared Observations of RR Lyrae Variables in $ω$ Centauri

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dc.creatorDel Principe, M.
dc.creatorPiersimoni, A. M.
dc.creatorStorm, J.
dc.creatorBono, G.
dc.creatorCaputo, F.
dc.creatorCassisi, S.
dc.creatorFreyhammer, L. M.
dc.creatorMarconi, M.
dc.creatorStetson, P. B.
dc.date2005-10-06
dc.date.accessioned2026-07-07T06:20:58Z
dc.date.available2026-07-07T06:20:58Z
dc.descriptionWe present Near-Infrared (NIR) $J$ and $K_s$-band observations for 181 RR Lyrae stars in the Galactic Globular Cluster $ω$ Cen. The comparison between predicted and empirical slopes of NIR Period-Luminosity (PL) relations indicates a very good agreement. Cluster distance estimates based on NIR PL relations agree quite well with recent determinations based on different standard candles, giving a true mean distance modulus $μ= 13.71\pm0.05$, and $d=5.52\pm0.13$ kpc.
dc.description2 pages, 1 figure, to appear in the proceedings of the Workshop "Stellar Pulsation and Evolution", 2005. Monte Porzio Catone, Italy. Eds.: A.R. Walker and G. Bono
dc.identifierhttps://arxiv.org/abs/astro-ph/0510174
dc.identifierhttp://arxiv.org/abs/astro-ph/0510174
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/95458
dc.subjectAstrophysics
dc.titleNear-Infrared Observations of RR Lyrae Variables in $ω$ Centauri
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