Light and color curves of six field RR Lyrae variable stars

Alicia S. Day; Andrew C. Layden; D. W. Hoard; Gabriel Brammer; Kathy Cooksey; Jorge Cuadra; Shadrian Holmes; Erika Labbe; Rodolfo Montez

doi:10.1086/341685

Light and color curves of six field RR Lyrae variable stars

Alicia S. Day, Andrew C. Layden, D. W. Hoard, Gabriel Brammer, Kathy Cooksey, Jorge Cuadra, Shadrian Holmes, Erika Labbe, Rodolfo Montez

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Resumen

We present light curves in the B, V, and I passbands for six field RR Lyrae stars. We derive the stars' intensity-mean magnitudes, light amplitudes, and colors at minimum light. We compare the latter with measurements from other variables and discuss the use of (V-I) color at minimum light as a tool for measuring interstellar reddening. From 15 stars, we find the mean dereddened RR Lyrae color at minimum light to be (V-I)₀ = 0.57 mag. The rms scatter of 0.025 mag indicates the precision of this value over a wide range of metallicities and pulsation periods.

Idioma original	Inglés
Páginas (desde-hasta)	645-649
Número de páginas	5
Publicación	Publications of the Astronomical Society of the Pacific
Volumen	114
N.º	796
DOI	https://doi.org/10.1086/341685
Estado	Publicada - 2002
Publicado de forma externa	Sí

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@article{2a9456594bf146ecabe620890cd1caee,

title = "Light and color curves of six field RR Lyrae variable stars",

abstract = "We present light curves in the B, V, and I passbands for six field RR Lyrae stars. We derive the stars' intensity-mean magnitudes, light amplitudes, and colors at minimum light. We compare the latter with measurements from other variables and discuss the use of (V-I) color at minimum light as a tool for measuring interstellar reddening. From 15 stars, we find the mean dereddened RR Lyrae color at minimum light to be (V-I)0 = 0.57 mag. The rms scatter of 0.025 mag indicates the precision of this value over a wide range of metallicities and pulsation periods.",

author = "Day, {Alicia S.} and Layden, {Andrew C.} and Hoard, {D. W.} and Gabriel Brammer and Kathy Cooksey and Jorge Cuadra and Shadrian Holmes and Erika Labbe and Rodolfo Montez",

year = "2002",

doi = "10.1086/341685",

language = "English",

volume = "114",

pages = "645--649",

journal = "Publications of the Astronomical Society of the Pacific",

issn = "0004-6280",

publisher = "Institute of Physics Publishing",

number = "796",

}

TY - JOUR

T1 - Light and color curves of six field RR Lyrae variable stars

AU - Day, Alicia S.

AU - Layden, Andrew C.

AU - Hoard, D. W.

AU - Brammer, Gabriel

AU - Cooksey, Kathy

AU - Cuadra, Jorge

AU - Holmes, Shadrian

AU - Labbe, Erika

AU - Montez, Rodolfo

PY - 2002

Y1 - 2002

N2 - We present light curves in the B, V, and I passbands for six field RR Lyrae stars. We derive the stars' intensity-mean magnitudes, light amplitudes, and colors at minimum light. We compare the latter with measurements from other variables and discuss the use of (V-I) color at minimum light as a tool for measuring interstellar reddening. From 15 stars, we find the mean dereddened RR Lyrae color at minimum light to be (V-I)0 = 0.57 mag. The rms scatter of 0.025 mag indicates the precision of this value over a wide range of metallicities and pulsation periods.

AB - We present light curves in the B, V, and I passbands for six field RR Lyrae stars. We derive the stars' intensity-mean magnitudes, light amplitudes, and colors at minimum light. We compare the latter with measurements from other variables and discuss the use of (V-I) color at minimum light as a tool for measuring interstellar reddening. From 15 stars, we find the mean dereddened RR Lyrae color at minimum light to be (V-I)0 = 0.57 mag. The rms scatter of 0.025 mag indicates the precision of this value over a wide range of metallicities and pulsation periods.

UR - http://www.scopus.com/inward/record.url?scp=0036079857&partnerID=8YFLogxK

U2 - 10.1086/341685

DO - 10.1086/341685

M3 - Article

AN - SCOPUS:0036079857

SN - 0004-6280

VL - 114

SP - 645

EP - 649

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

IS - 796

ER -

Light and color curves of six field RR Lyrae variable stars

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