J/A+A/415/521 BVRIJK and velocities for MC Cepheids (Storm+, 2004)
BVRIJK light curves and radial velocity curves for selected
Magellanic Cloud Cepheids.
Storm J., Carney B.W., Gieren W.P., Fouque P., Freedman W.L., Madore B.F.,
Habgood M.J.
<Astron. Astrophys., 415, 521-529 (2004)>
=2004A&A...415..521S 2004A&A...415..521S
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Photometry, CCD ;
Photometry, UBVRI ; Photometry, infrared ; Radial velocities
Keywords: Cepheids - Magellanic Clouds
Abstract:
We present high precision and well sampled BVRIJK light curves and
radial velocity curves for a sample of five (+1) Cepheids in the SMC.
In addition we present radial velocity curves for five (+1) Cepheids
in the LMC. The low metallicity ([Fe/H]~-0.7) SMC stars have been
selected for use in a Baade-Wesselink type analysis to constrain the
metallicity effect on the Cepheid Period-Luminosity relation. The
stars have periods of around 15 days so they are similar to the
Cepheids observed by the Extragalactic Distance Scale Key Project on
the Hubble Space Telescope. We show that the stars are representative
of the SMC Cepheid population at that period and thus will provide a
good sample for the proposed analysis. The actual Baade-Wesselink
analysis are presented in Strom et al., 2004, Cat. J/A+A/415/531.
Description:
Optical CCD lightcurves in the BVRI bands for 5 selected SMC
Cepheids is presented. Similarly near-infrared J and K band
lightcurves as well as radial velocity curves are presented for these
stars. The stars are HV 822, HV 1328, HV 1333, HV 1335 and HV 1345.
Additional radial velocity data for the SMC star HV 821 and the LMC
stars HV 883, HV 2694, HV 12797, and HV 12198 is also presented.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 97 10 The coordinates of the Cepheids as returned by
skycat from the Digital Sky Survey (J2000.0)
(+ HV 821 and 883, from Simbad)
table10.dat 69 48 BVRI lightcurve for HV 822
table11.dat 69 57 BVRI lightcurve for HV 1328
table12.dat 69 61 BVRI lightcurve for HV 1333
table13.dat 69 55 BVRI lightcurve for HV 1335
table14.dat 69 50 BVRI lightcurve for HV 1345
table15.dat 43 26 JK lightcurve for HV 822
table16.dat 43 24 JK lightcurve for HV 1328
table17.dat 43 21 JK lightcurve for HV 1333
table18.dat 43 23 JK lightcurve for HV 1335
table19.dat 43 26 JK lightcurve for HV 1345
table20.dat 36 73 Interpolated (V-K) color curve for HV 822
table21.dat 36 57 Interpolated (V-K) color curve for HV 1328
table22.dat 36 61 Interpolated (V-K) color curve for HV 1333
table23.dat 36 113 Interpolated (V-K) color curve for HV 1335
table24.dat 36 77 Interpolated (V-K) color curve for HV 1345
table25.dat 33 126 HJD and Radial velocities for the stars
HV822, HV1328, HV1333, HV1335, HV1345
table26.dat 33 46 HJD and Radial velocities for the stars
HV2694, HV12198, HV12797
table27.dat 33 3 HJD and Radial velocities for the stars
HV821, HV883
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See also:
J/A+A/415/531 : Radial velocities of 10 Galactic Cepheids (Storm+, 2004)
J/A+A/303/137 : EROS Variables: Cepheids in the LMC bar (Beaulieu+ 1995)
J/A+A/385/793 : Cepheids in Magellanic Clouds. II. (Antonello+, 2002)
J/ApJS/117/135 : Magellanic Clouds Cepheids photometry (Moffett+ 1998)
J/ApJS/142/71 : BVRI observations of LMC Cepheids (Sebo+, 2002)
J/PASP/111/812 : Magellanic Clouds Cepheids V(RI)C phot. (Barnes+ 1999)
J/AcA/49/223 : BVI photometry of OGLE LMC Cepheids (Udalski+, 1999)
J/AcA/49/437 : BVI photometry of OGLE SMC Cepheids (Udalski+, 1999)
J/AcA/49/543 : OGLE LMC + SMC Cepheids VI photometry (Pietrzynski+, 1999)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [HV]
4- 8 I5 --- HV Star HV number
10- 23 A14 --- OGLE OGLE designation
25- 26 I2 h RAh Right ascension (J2000.0)
28- 29 I2 min RAm Right ascension (J2000.0)
31- 34 F4.1 s RAs Right ascension (J2000.0)
36 A1 --- DE- Declination sign (J2000.0)
37- 38 I2 deg DEd Declination (J2000.0)
40- 41 I2 arcmin DEm Declination (J2000.0)
43- 44 I2 arcsec DEs Declination (J2000.0)
48- 58 A11 ---- BVRI Name of the file containing the BVRI lightcurves
61- 71 A11 ---- JK Name of the file containing the JK lightcurves
74- 84 A11 ---- (V-K) Name of the file containing the (V-K) lightcurve
87- 97 A11 ---- RV Name of the file containing the radial velocity data
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Byte-by-byte Description of file: table1[0-4].dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian Date
15- 19 F5.3 --- phase Phase
21- 26 F6.3 mag Vmag V-band magnitude (1)
28- 32 F5.3 mag e_Vmag Estimated uncertainty on Vmag
34- 38 F5.3 mag (B-V) ? (B-V) color index (1)
40- 44 F5.3 mag e_(B-V) ? Estimated uncertainty on (B-V)
46- 50 F5.3 mag (V-R) ? (V-R) color index (1)
52- 56 F5.3 mag e_(V-R) ? Estimated uncertainty on (V-R)
58- 62 F5.3 mag (V-I) ? (V-I) color index (1)
64- 68 F5.3 mag e_(V-I) ? Estimated uncertainty on (V-I)
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Note (1): The photometry has been calibrated to the Landolt
(1992AJ....104..340L 1992AJ....104..340L, Cat. II/183) system.
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Byte-by-byte Description of file: table1[5-9].dat
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Bytes Format Units Label Explanations
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1- 13 F13.5 d HJD Heliocentric Julian Date
16- 21 F6.3 mag Kmag K-band magnitude (1)
24- 28 F5.3 mag e_Kmag Estimated uncertainty on K
32- 36 F5.3 mag (J-K) ? (J-K) color index (1)
39- 43 F5.3 mag e_(J-K) ? Estimated uncertainty on (J-K)
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Note (1): The photometry has been calibrated to the CIT system using the
Persson (1998AJ....116.2475P 1998AJ....116.2475P) transformations.
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Byte-by-byte Description of file: table2[0-4].dat
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Bytes Format Units Label Explanations
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1- 6 F6.4 --- phase Phase
9- 14 F6.3 mag Vmag V-magnitude
17- 21 F5.3 mag e_Vmag Estimated uncertainty on V
25- 29 F5.3 mag (V-K) Interpolated (V-K) color (1)
32- 36 F5.3 mag e_(V-K) Estimated uncertainty on (V-K)
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Note (1): The optical and infra-red data has not been acquired at the
same epoch so it has been necessary to interpolate in phase as
described in the paper to obtain a (V-K) color curve.
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Byte-by-byte Description of file: table2[5-7].dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- --- [HV]
3- 7 I5 --- HV Star HV number
9- 20 F12.4 d HJD Heliocentric Julian Date
23- 27 F5.1 km/s RV Radial velocity
31- 33 F3.1 km/s e_RV Estimated uncertainty on RV
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Acknowledgements: Jesper Storm
(End) Patricia Bauer [CDS] 13-Feb-2004