J/A+A/438/521 SMC C stars B and R light curves (Raimondo+, 2005)
Pulsation properties of C stars in the Small Magellanic Cloud.
Raimondo G., Cioni M.-R.L., Rejkuba M., Silva D.R.
<Astron. Astrophys., 438, 521-532 (2005)>
=2005A&A...438..521R 2005A&A...438..521R
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Stars, carbon
Keywords: stars: AGB and post-AGB - stars: variables: general -
Magellanic Clouds
Abstract:
A sample of carbon-rich stars (C-stars) in the Small Magellanic Cloud
(SMC) was selected from the combined 2MASS and DENIS catalogues on the
basis of their J-Ks colour. This sample was extended to include
confirmed C-stars from the Rebeirot et al. (1993, Cat.
J/A+AS/97/603) spectroscopic atlas. In this combined sample
(N=1149), a smaller number (N=1079) were found to have MACHO
observations. For this sub-sample, light curves were determined and
919 stars were found to have high quality light-curves with amplitudes
of at least 0.05mag.
Description:
Table 1 lists the MACHO counterparts of the MC2 sources (2MASS
(II/246) and DCMC (II/228)), and C-stars in the spectroscopic
atlas of Reiberot et al. (1993, Cat. J/A+AS/97/603).
Table 3 lists results of the Fourier analysis of the light-curves in
both the MACHO filters. The dominant period and amplitude together
with the secondary period (if present) are provided.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 89 1079 Cross-identification between the MASTER and MACHO
catalogues of our sample of C-stars
table3.dat 176 1079 Light curves parameters
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See also:
II/228 : DENIS Catalogue toward Magellanic Clouds (DCMC) (Cioni+ 2000)
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
http://wwwmacho.mcmaster.ca/ : MACHO Home Page
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- MACHO MACHO (FFF.NNNNN.NNNN) name
17- 35 A19 --- DCMC DCMC (Cat. II/228) name
38- 51 A14 --- 2MASS 2MASS (Cat. II/246) name
56- 64 F9.6 deg RAdeg Right ascension, in decimal degrees (J2000)
67- 76 F10.6 deg DEdeg Declination, in decimal degrees (J2000)
79- 83 F5.3 arcsec Dist Positional difference 2MASS-MACHO coordinates
86- 89 I4 --- RAW Number in the Rebeirot et al. (1993,
Cat. J/A+AS/97/603) catalogue
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- MACHO MACHO name
16- 22 F7.3 mag Bmag MACHO averaged Kron-Cousins B magnitude
24- 29 F6.3 mag Ba1 B band Fourier coefficient of the dominant period
31- 36 F6.3 mag Bb1 B band Fourier coefficient of the dominant period
38- 42 F5.3 mag Ba2 B band Fourier coefficient of the secondary period
44- 48 F5.3 mag Bb2 B band Fourier coefficient of the secondary period
50- 58 F9.3 d Bper1 ?=0.0 B band Dominant period
60- 68 F9.3 d Bper2 ?=0.0 B band Secondary period
70- 76 F7.3 --- Bpow1 ?=0.0 B band Power strength of dominant Period
78- 84 F7.3 --- Bpow2 ?=0.0 B band Power strength of secondary Period
86- 89 F4.2 mag Bamp ?=0.0 B band Photometric Amplitude
91 I1 --- Bq [0/4] B band Data quality (1)
93 I1 --- Bfit [0/5] B band Fit quality (2)
95 I1 --- Bp [0/3] B band Detected periodicities (3)
97-103 F7.3 mag Rmag MACHO averaged Kron-Cousins R magnitude
105-110 F6.3 mag Ra1 R band Fourier coefficient of the dominant period
112-117 F6.3 mag Rb1 R band Fourier coefficient of the dominant period
119-123 F5.3 mag Ra2 R band Fourier coefficient of the secondary period
125-129 F5.3 mag Rb2 R band Fourier coefficient of the secondary period
131-139 F9.3 d Rper1 ?=0.0 R band Dominant period
141-149 F9.3 d Rper2 ?=0.0 R band Secondary period
151-157 F7.3 --- Rpow1 ?=0.0 R band Power strength of dominant Period
159-165 F7.3 --- Rpow2 ?=0.0 R band Power strength of secondary Period
167-170 F4.2 mag Ramp ?=0.0 R band Photometric Amplitude
172 I1 --- Rq [0/4] R band Data quality (1)
174 I1 --- Rfit [0/5] R band Fit quality (2)
176 I1 --- Rp [0/3] R band Detected periodicities (3)
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Note (1): Data quality flag as follows:
0 = excellent
1 = good
2 = fair
3 = noisy or few data
4 = no data
Note (2): Fit quality flag as follows:
0 = excellent
1 = good
2 = fair
3 = bad
4 = underivable
5 = underivable (no data)
Note (3): Detected periodicities flag as follows:
0 = no periodicity
1 = 1 period
2 = 2 periods
3 = 1 period + second period uncertain
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History:
* 14-Jul-2005: Original version
* 08-Sep-2005: table1.dat: cross-identifications corrected for
MACHO 208.15801.1 and 211.16301.3 (from Gabriella Raimondo)
Acknowledgements: Gabriella Raimondo, raimondo(at)te.astro.it
(End) Patricia Vannier [CDS] 14-Jul-2005