J/MNRAS/426/2063 SMC RR Lyrae Fourier decomposition (Kapakos+, 2012)
RR Lyrae variables in the Small Magellanic Cloud.
II. The extended area: chemical and structural analysis.
Kapakos E., Hatzidimitriou D.
<Mon. Not. R. Astron. Soc., 426, 2063-2077 (2012)>
=2012MNRAS.426.2063K 2012MNRAS.426.2063K
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Magnitudes
Keywords: methods: data analysis - astronomical data bases: miscellaneous -
stars: abundances - stars: variables: RR Lyrae - Magellanic Clouds
Abstract:
We have performed the Fourier decomposition analysis of 8- and 13-yr
V-band light curves of a carefully selected sample of 454
fundamental-mode RR Lyrae variables (RRab type), detected in an ~=14
square degree area of the Small Magellanic Cloud (SMC) and listed in
the Optical Gravitational Lensing Experiment, phase III, Catalogue of
Variable Stars. The Fourier decomposition parameters were used to
derive metal abundances and distance moduli, following the methodology
described by Kapakos, Hatzidimitriou & Soszynski, Paper I (2011, Cat.
J/MNRAS/415/1366).
Description:
The present study is based on observations obtained with the 1.3m
Warsaw telescope at the Las Campanas Observatory, Chile, during phase
III of the OGLE project, between 2001 and 2009 (Soszynski et al.,
2010, cat. J/AcA/60/165)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 210 1887 Fourier decomposition parameters for 1887 RRab
stars derived from data of the OGLE phases II
and III in the V band
table2.dat 195 169 Fourier decomposition parameters for 169 RRc
stars derived from data of the OGLE phases II
and III in the V band
table4.dat 84 454 Metal abundances, absolute magnitudes, distance
moduli and distances for the 454 RRab stars
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See also:
J/A+A/312/111 : [Fe/H] from RR Lyrae light curves (Jurcsik+, 1996)
J/AcA/60/165 : VI light curves of SMC RR Lyrae (Soszynski+, 2010)
J/MNRAS/402/691 : SMC RR Lyrae stars light curve analysis (Deb+, 2010)
J/MNRAS/415/1366 : OGLE RR Lyrae in SMC (Kapakos+, 2011)
Byte-by-byte Description of file: table[12].dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- --- [OGLE-SMC-RRLYR-]
16- 19 I04 --- Star [1/2475] Star number (OGLE-SMC-RRLYR-NNNN)
21- 29 F9.7 d P0 Fundamental period
31- 39 F9.7 d e_P0 rms uncertainty on P0
41- 43 I3 --- N0 Original number of points in the light curve
45- 47 I3 --- N Number of points in the light curve
49- 53 F5.3 --- sig.fit sigma of the fit of the light curve
55- 60 F6.3 mag A0 Amplitude of the main component
62- 66 F5.3 mag e_A0 Standard error on A1
68- 72 F5.3 mag A1 A1 Fourier amplitude
74- 78 F5.3 mag e_A1 Standard error on A1
80- 84 F5.3 mag A2 A2 Fourier amplitude
86- 90 F5.3 mag e_A2 Standard error on A2
92- 96 F5.3 mag A3 A3 Fourier amplitude
98-102 F5.3 mag e_A3 Standard error on A3
104-108 F5.3 mag A4 A4 Fourier amplitude
110-114 F5.3 mag e_A4 Standard error on A4
116-120 F5.3 --- R21 Fourier parameter A2/A1
122-126 F5.3 --- e_R21 Standard error on R21
128-132 F5.3 --- R31 Fourier parameter A3/A1
134-138 F5.3 --- e_R31 Standard error on R31
140-144 F5.3 --- R41 Fourier parameter A4/A1
146-150 F5.3 --- e_R41 Standard error on R41
152-157 F6.3 rad phi21 φ21 Fourier phase
159-163 F5.3 rad e_phi21 Standard error on phi21
165-169 F5.3 rad phi31 φ31 Fourier phase
171-175 F5.3 rad e_phi31 Standard error on phi31
177-182 F6.3 rad phi41 φ41 Fourier phase
184-189 F6.3 rad e_phi41 Standard error on phi41
191-195 F5.3 mag Vamp Amplitude in V band
197-202 F6.3 mag Dm ? Deviation parameter (1)
204-210 F7.3 mag e_Dm ? Standard error on Dm, only in table1.dat
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Note (1): Dm represents a quality test on the regular behaviour of the
shape of the light curve; it is defined as (O-C)/σ; a value
larger than
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- --- [OGLE-SMC-RRLYR-]
16- 19 I04 --- Star [1/2475] Star number (OGLE-SMC-RRLYR-NNNN)
21- 26 F6.3 [Sun] [Fe/H]1 JK96 metallicity (Jursick and Kovacs 1997,
Cat. J/A+A/312/111)
28- 32 F5.3 [Sun] e_[Fe/H]1 Standard error on [Fe/H]1
34- 39 F6.3 [Sun] [Fe/H]2 C09 metallicity (Carrera et al.,
2009A&A...508..695C 2009A&A...508..695C)
41- 45 F5.3 [Sun] e_[Fe/H]2 C09 Standard error on [Fe/H]C09
47- 51 F5.3 mag VMAG Absolute V magnitude
53- 57 F5.3 mag e_VMAG Standard error on VMAG
59- 64 F6.3 mag mu Distance modulus (m-M)
66- 70 F5.3 mag e_mu Standard error on mu
72- 77 F6.3 kpc Dist Heliocentric distance
79- 84 F6.3 kpc e_Dist Standard error on Dist
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 15-Apr-2013