J/MNRAS/384/1583 JHK light curves of RR Lyr (Sollima+, 2008)
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.
<Mon. Not. R. Astron. Soc., 384, 1583-1587 (2008)>
=2008MNRAS.384.1583S 2008MNRAS.384.1583S
ADC_Keywords: Stars, variable ; Magnitudes ; Photometry, infrared
Keywords: methods: observational - techniques: photometric -
stars: variables: others - infrared: stars
Abstract:
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
=6.74±0.02, =6.60±0.03 and =6.50±0.02. The
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.
Description:
This catalog is based on JHK photometric observations performed with
the near-infrared camera SWIRCAM@1.1mAZT24.
It consists in a set of 72 images of a 4.4'x4.4' field around the
variable star RR Lyr.
The JHK magnitudes have been calibrated using 7 2MASS reference stars
present in the field. The photometric accuracy is better than 0.01mag.
Objects:
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RA (2000) DE Designation(s)
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9 25 27.91 +42 47 03.7 RR Lyr = HD 182989
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
h.dat 19 72 RR Lyr H light curve
j.dat 19 71 RR Lyr J light curve
k.dat 19 68 RR Lyr K light curve
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Byte-by-byte Description of file: h.dat j.dat k.dat
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Bytes Format Units Label Explanations
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1- 11 F11.3 d HJD Heliocentric Julian Day
13 A1 --- Band [JHK] Photometric Johnson band
15- 19 F5.3 mag mag J, H or K magnitude
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Acknowledgements:
Antonio Sollima, antonio.sollima (at)oabo.inaf.it
(End) Antonio Sollima [Univ. Bologna], Patricia Vannier [CDS] 14-Mar-2008