New near-infrared JHK s light-curve templates for RR Lyrae variables

V. F. Braga, P. B. Stetson, G. Bono, M. Dall'Ora, I. Ferraro, G. Fiorentino, G. Iannicola, L. Inno, M. Marengo, J. Neeley, R. L. Beaton, R. Buonanno, A. Calamida, R. Contreras Ramos, B. Chaboyer, M. Fabrizio, W. L. Freedman, C. K. Gilligan, K. V. Johnston, J. LubB. F. Madore, D. Magurno, M. Marconi, S. Marinoni, P. M. Marrese, M. Mateo, N. Matsunaga, D. Minniti, A. J. Monson, M. Monelli, M. Nonino, S. E. Persson, A. Pietrinferni, C. Sneden, J. Storm, A. R. Walker, E. Valenti, M. Zoccali

Resultado de la investigación: Article

1 Cita (Scopus)

Resumen

We provide homogeneous optical (UBVRI) and near-infrared (NIR, JHK) time series photometry for 254 cluster (ω Cen, M 4) and field RR Lyrae (RRL) variables. We ended up with more than 551 000 measurements, of which only 9% are literature data. For 94 fundamental (RRab) and 51 first overtones (RRc) we provide a complete optical/NIR characterization (mean magnitudes, luminosity amplitudes, epoch of the anchor point). The NIR light curves of these variables were adopted to provide new light-curve templates for both RRc and RRab variables. The templates for the J and the H bands are newly introduced, together with the use of the pulsation period to discriminate among the different RRab templates. To overcome subtle uncertainties in the fit of secondary features of the light curves we provide two independent sets of analytical functions (Fourier and periodic Gaussian series). The new templates were validated by using 26 ω Cen and Bulge RRLs. We find that the difference between the measured mean magnitude along the light curve and the mean magnitude estimated by using the template on a single randomly extracted phase point is better than 0.01 mag (σ = 0.04 mag). We also validated the template on variables for which at least three phase points were available, but without information on the phase of the anchor point. We find that the accuracy of the mean magnitudes is also ∼0.01 mag (σ = 0.04 mag). The new templates were applied to the Large Magellanic Cloud (LMC) globular cluster Reticulum and by using literature data and predicted PLZ relations we find true distance moduli μ = 18.47 ± 0.10 (rand.) ± 0.03 (syst.) mag (J) and 18.49 ± 0.09 ± 0.05 mag (K). We also used literature optical and mid-infrared data and we found a mean μ of 18.47 ± 0.02 ± 0.06 mag, suggesting that Reticulum is ∼1 kpc closer than the LMC.

Idioma originalEnglish
Número de artículoA1
PublicaciónAstronomy and Astrophysics
Volumen625
DOI
EstadoPublished - 1 may 2019

Huella dactilar

light curve
near infrared
templates
anchor
Magellanic clouds
time series
globular clusters
photometry
luminosity
time measurement
harmonics

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

Citar esto

Braga, V. F., Stetson, P. B., Bono, G., Dall'Ora, M., Ferraro, I., Fiorentino, G., ... Zoccali, M. (2019). New near-infrared JHK s light-curve templates for RR Lyrae variables. Astronomy and Astrophysics, 625, [A1]. https://doi.org/10.1051/0004-6361/201834893
Braga, V. F. ; Stetson, P. B. ; Bono, G. ; Dall'Ora, M. ; Ferraro, I. ; Fiorentino, G. ; Iannicola, G. ; Inno, L. ; Marengo, M. ; Neeley, J. ; Beaton, R. L. ; Buonanno, R. ; Calamida, A. ; Contreras Ramos, R. ; Chaboyer, B. ; Fabrizio, M. ; Freedman, W. L. ; Gilligan, C. K. ; Johnston, K. V. ; Lub, J. ; Madore, B. F. ; Magurno, D. ; Marconi, M. ; Marinoni, S. ; Marrese, P. M. ; Mateo, M. ; Matsunaga, N. ; Minniti, D. ; Monson, A. J. ; Monelli, M. ; Nonino, M. ; Persson, S. E. ; Pietrinferni, A. ; Sneden, C. ; Storm, J. ; Walker, A. R. ; Valenti, E. ; Zoccali, M. / New near-infrared JHK s light-curve templates for RR Lyrae variables. En: Astronomy and Astrophysics. 2019 ; Vol. 625.
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title = "New near-infrared JHK s light-curve templates for RR Lyrae variables",
abstract = "We provide homogeneous optical (UBVRI) and near-infrared (NIR, JHK) time series photometry for 254 cluster (ω Cen, M 4) and field RR Lyrae (RRL) variables. We ended up with more than 551 000 measurements, of which only 9{\%} are literature data. For 94 fundamental (RRab) and 51 first overtones (RRc) we provide a complete optical/NIR characterization (mean magnitudes, luminosity amplitudes, epoch of the anchor point). The NIR light curves of these variables were adopted to provide new light-curve templates for both RRc and RRab variables. The templates for the J and the H bands are newly introduced, together with the use of the pulsation period to discriminate among the different RRab templates. To overcome subtle uncertainties in the fit of secondary features of the light curves we provide two independent sets of analytical functions (Fourier and periodic Gaussian series). The new templates were validated by using 26 ω Cen and Bulge RRLs. We find that the difference between the measured mean magnitude along the light curve and the mean magnitude estimated by using the template on a single randomly extracted phase point is better than 0.01 mag (σ = 0.04 mag). We also validated the template on variables for which at least three phase points were available, but without information on the phase of the anchor point. We find that the accuracy of the mean magnitudes is also ∼0.01 mag (σ = 0.04 mag). The new templates were applied to the Large Magellanic Cloud (LMC) globular cluster Reticulum and by using literature data and predicted PLZ relations we find true distance moduli μ = 18.47 ± 0.10 (rand.) ± 0.03 (syst.) mag (J) and 18.49 ± 0.09 ± 0.05 mag (K). We also used literature optical and mid-infrared data and we found a mean μ of 18.47 ± 0.02 ± 0.06 mag, suggesting that Reticulum is ∼1 kpc closer than the LMC.",
keywords = "Globular clusters: individual: M 4, Globular clusters: individual: omega Cen, Magellanic Clouds, Methods: data analysis, Stars: variables: RR Lyrae",
author = "Braga, {V. F.} and Stetson, {P. B.} and G. Bono and M. Dall'Ora and I. Ferraro and G. Fiorentino and G. Iannicola and L. Inno and M. Marengo and J. Neeley and Beaton, {R. L.} and R. Buonanno and A. Calamida and {Contreras Ramos}, R. and B. Chaboyer and M. Fabrizio and Freedman, {W. L.} and Gilligan, {C. K.} and Johnston, {K. V.} and J. Lub and Madore, {B. F.} and D. Magurno and M. Marconi and S. Marinoni and Marrese, {P. M.} and M. Mateo and N. Matsunaga and D. Minniti and Monson, {A. J.} and M. Monelli and M. Nonino and Persson, {S. E.} and A. Pietrinferni and C. Sneden and J. Storm and Walker, {A. R.} and E. Valenti and M. Zoccali",
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month = "5",
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language = "English",
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Braga, VF, Stetson, PB, Bono, G, Dall'Ora, M, Ferraro, I, Fiorentino, G, Iannicola, G, Inno, L, Marengo, M, Neeley, J, Beaton, RL, Buonanno, R, Calamida, A, Contreras Ramos, R, Chaboyer, B, Fabrizio, M, Freedman, WL, Gilligan, CK, Johnston, KV, Lub, J, Madore, BF, Magurno, D, Marconi, M, Marinoni, S, Marrese, PM, Mateo, M, Matsunaga, N, Minniti, D, Monson, AJ, Monelli, M, Nonino, M, Persson, SE, Pietrinferni, A, Sneden, C, Storm, J, Walker, AR, Valenti, E & Zoccali, M 2019, 'New near-infrared JHK s light-curve templates for RR Lyrae variables', Astronomy and Astrophysics, vol. 625, A1. https://doi.org/10.1051/0004-6361/201834893

New near-infrared JHK s light-curve templates for RR Lyrae variables. / Braga, V. F.; Stetson, P. B.; Bono, G.; Dall'Ora, M.; Ferraro, I.; Fiorentino, G.; Iannicola, G.; Inno, L.; Marengo, M.; Neeley, J.; Beaton, R. L.; Buonanno, R.; Calamida, A.; Contreras Ramos, R.; Chaboyer, B.; Fabrizio, M.; Freedman, W. L.; Gilligan, C. K.; Johnston, K. V.; Lub, J.; Madore, B. F.; Magurno, D.; Marconi, M.; Marinoni, S.; Marrese, P. M.; Mateo, M.; Matsunaga, N.; Minniti, D.; Monson, A. J.; Monelli, M.; Nonino, M.; Persson, S. E.; Pietrinferni, A.; Sneden, C.; Storm, J.; Walker, A. R.; Valenti, E.; Zoccali, M.

En: Astronomy and Astrophysics, Vol. 625, A1, 01.05.2019.

Resultado de la investigación: Article

TY - JOUR

T1 - New near-infrared JHK s light-curve templates for RR Lyrae variables

AU - Braga, V. F.

AU - Stetson, P. B.

AU - Bono, G.

AU - Dall'Ora, M.

AU - Ferraro, I.

AU - Fiorentino, G.

AU - Iannicola, G.

AU - Inno, L.

AU - Marengo, M.

AU - Neeley, J.

AU - Beaton, R. L.

AU - Buonanno, R.

AU - Calamida, A.

AU - Contreras Ramos, R.

AU - Chaboyer, B.

AU - Fabrizio, M.

AU - Freedman, W. L.

AU - Gilligan, C. K.

AU - Johnston, K. V.

AU - Lub, J.

AU - Madore, B. F.

AU - Magurno, D.

AU - Marconi, M.

AU - Marinoni, S.

AU - Marrese, P. M.

AU - Mateo, M.

AU - Matsunaga, N.

AU - Minniti, D.

AU - Monson, A. J.

AU - Monelli, M.

AU - Nonino, M.

AU - Persson, S. E.

AU - Pietrinferni, A.

AU - Sneden, C.

AU - Storm, J.

AU - Walker, A. R.

AU - Valenti, E.

AU - Zoccali, M.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - We provide homogeneous optical (UBVRI) and near-infrared (NIR, JHK) time series photometry for 254 cluster (ω Cen, M 4) and field RR Lyrae (RRL) variables. We ended up with more than 551 000 measurements, of which only 9% are literature data. For 94 fundamental (RRab) and 51 first overtones (RRc) we provide a complete optical/NIR characterization (mean magnitudes, luminosity amplitudes, epoch of the anchor point). The NIR light curves of these variables were adopted to provide new light-curve templates for both RRc and RRab variables. The templates for the J and the H bands are newly introduced, together with the use of the pulsation period to discriminate among the different RRab templates. To overcome subtle uncertainties in the fit of secondary features of the light curves we provide two independent sets of analytical functions (Fourier and periodic Gaussian series). The new templates were validated by using 26 ω Cen and Bulge RRLs. We find that the difference between the measured mean magnitude along the light curve and the mean magnitude estimated by using the template on a single randomly extracted phase point is better than 0.01 mag (σ = 0.04 mag). We also validated the template on variables for which at least three phase points were available, but without information on the phase of the anchor point. We find that the accuracy of the mean magnitudes is also ∼0.01 mag (σ = 0.04 mag). The new templates were applied to the Large Magellanic Cloud (LMC) globular cluster Reticulum and by using literature data and predicted PLZ relations we find true distance moduli μ = 18.47 ± 0.10 (rand.) ± 0.03 (syst.) mag (J) and 18.49 ± 0.09 ± 0.05 mag (K). We also used literature optical and mid-infrared data and we found a mean μ of 18.47 ± 0.02 ± 0.06 mag, suggesting that Reticulum is ∼1 kpc closer than the LMC.

AB - We provide homogeneous optical (UBVRI) and near-infrared (NIR, JHK) time series photometry for 254 cluster (ω Cen, M 4) and field RR Lyrae (RRL) variables. We ended up with more than 551 000 measurements, of which only 9% are literature data. For 94 fundamental (RRab) and 51 first overtones (RRc) we provide a complete optical/NIR characterization (mean magnitudes, luminosity amplitudes, epoch of the anchor point). The NIR light curves of these variables were adopted to provide new light-curve templates for both RRc and RRab variables. The templates for the J and the H bands are newly introduced, together with the use of the pulsation period to discriminate among the different RRab templates. To overcome subtle uncertainties in the fit of secondary features of the light curves we provide two independent sets of analytical functions (Fourier and periodic Gaussian series). The new templates were validated by using 26 ω Cen and Bulge RRLs. We find that the difference between the measured mean magnitude along the light curve and the mean magnitude estimated by using the template on a single randomly extracted phase point is better than 0.01 mag (σ = 0.04 mag). We also validated the template on variables for which at least three phase points were available, but without information on the phase of the anchor point. We find that the accuracy of the mean magnitudes is also ∼0.01 mag (σ = 0.04 mag). The new templates were applied to the Large Magellanic Cloud (LMC) globular cluster Reticulum and by using literature data and predicted PLZ relations we find true distance moduli μ = 18.47 ± 0.10 (rand.) ± 0.03 (syst.) mag (J) and 18.49 ± 0.09 ± 0.05 mag (K). We also used literature optical and mid-infrared data and we found a mean μ of 18.47 ± 0.02 ± 0.06 mag, suggesting that Reticulum is ∼1 kpc closer than the LMC.

KW - Globular clusters: individual: M 4

KW - Globular clusters: individual: omega Cen

KW - Magellanic Clouds

KW - Methods: data analysis

KW - Stars: variables: RR Lyrae

UR - http://www.scopus.com/inward/record.url?scp=85065240146&partnerID=8YFLogxK

U2 - 10.1051/0004-6361/201834893

DO - 10.1051/0004-6361/201834893

M3 - Article

AN - SCOPUS:85065240146

VL - 625

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

SN - 0004-6361

M1 - A1

ER -

Braga VF, Stetson PB, Bono G, Dall'Ora M, Ferraro I, Fiorentino G y otros. New near-infrared JHK s light-curve templates for RR Lyrae variables. Astronomy and Astrophysics. 2019 may 1;625. A1. https://doi.org/10.1051/0004-6361/201834893