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The infrared JHK light curves of RR Lyr

Sollima, A. ; Cacciari, C. ; Arkharov, A. A. H. ; Larionov, V. M. ; Gorshanov, D. L. ; Efimova, N. V. ; Piersimoni, A.

Monthly notices of the Royal Astronomical Society, 2008-03, Vol.384 (4), p.1583-1587 [Periódico revisado por pares]

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Título:
The infrared JHK light curves of RR Lyr
Autor: Sollima, A. ; Cacciari, C. ; Arkharov, A. A. H. ; Larionov, V. M. ; Gorshanov, D. L. ; Efimova, N. V. ; Piersimoni, A.
Assuntos: Astronomy ; Infrared radiation ; infrared: stars ; Light ; methods: observational ; Stars & galaxies ; stars: variables: others ; techniques: photometric
É parte de: Monthly notices of the Royal Astronomical Society, 2008-03, Vol.384 (4), p.1583-1587
Notas: istex:91CE473AAB8D7ABD567FADE7B0FADFE23A838F6B
ark:/67375/HXZ-LRK0FTMV-Z
Descrição: We present infrared JHK time series photometry of the variable star RR Lyr, that allows us to construct the first complete and accurate infrared light curves for this star. The derived mean magnitudes are 〈J〉= 6.74 ± 0.02, 〈H〉= 6.60 ± 0.03 and 〈K〉= 6.50 ± 0.02. The 〈K〉 magnitude is used to estimate the reddening, the mass, the mean luminosity and the temperature of this variable star. The use of these RR Lyr data provides a more accurate absolute calibration of the P–LK–[Fe/H] relation, and a distance modulus (m−M)0= 18.48 ± 0.11 to the globular cluster Reticulum in the Large Magellanic Cloud.
Editor: Oxford, UK: Blackwell Publishing Ltd
Idioma: Inglês

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