J/A+A/430/603 BVI photometry of LMC bar variables (Di Fabrizio+, 2005)
Variable stars in the bar of the Large Magellanic Cloud:
the photometric catalogue.
Di Fabrizio L., Clementini G., Maio M., Bragaglia A., Carretta E.,
Gratton R., Montegriffo P., Zoccali M.
<Astron. Astrophys. 430, 603 (2005)>
=2005A&A...430..603D 2005A&A...430..603D
ADC_Keywords: Stars, variable ; Photometry, CCD ; Magellanic Clouds
Keywords: stars: fundamental parameters - stars: variables: general -
stars: variables: RR Lyrae - galaxies: individual: LMC -
techniques: photometric
Description:
We present the Johnson-Cousins B,V and I time series data obtained for
162 variable stars (135 RR Lyrae, 4 candidate Anomalous Cepheids, 11
Classical Cepheids, 11 eclipsing binaries and 1 delta Scuti star) in
two 13x13 square arcmin areas close to the bar of the Large Magellanic
Cloud.
The photometric observations presented in this paper were carried out
at the 1.54m Danish telescope located in La Silla, Chile, on the
nights 4-7 January 1999, UT, and 23-24 January 2001, UT, respectively.
In the paper we give coordinates, finding charts, periods, epochs,
amplitudes, and mean quantities (intensity- and magnitude-averaged
luminosities) of the variables with full coverage of the light
variations, along with a discussion of the pulsation properties of the
RR Lyrae stars in the sample.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 199 119 Informations and average quantities for the variable
stars in field A (98 confirmed + 5 candidates)
table6.dat 199 82 Informations and average quantities for the variable
stars in field B (64 confirmed + 3 candidates)
notes.dat 80 54 Individual notes
table9.dat 43 141 Counter-identification between MACHO and us for the
variable stars in common in field A and B, separately
table10.dat 62 42 Comparison with MACHO photometry for the variable
stars in common with Kovacs subsample
table11.dat 56 18 Comparison with MACHO photometry for the
variable stars in common with Alves subsample
table14.dat 100 42 Variable stars inside the area in common with
OGLE II field LMC_SC21
lc/* . 469 Individual light curves (table 4)
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See also:
http://wwwmacho.mcmaster.ca/Data/MachoData.html : MACHO Home Page
http://www.astrouw.edu.pl/~ogle/ogle2/rrlyr_lmc.html : OGLE II Home Page
J/AJ/114/326 : MACHO Variables V. (Alcock+ 1997)
J/AJ/124/2039 : LMC Blue variable stars from MACHO (Keller+, 2002)
J/AJ/127/334 : MACHO LMC first-overtone RR Lyrae variables (Alcock+, 2004)
J/ApJ/542/257 : MACHO LMC first-overtone RR Lyrae (Alcock+, 2000)
J/AcA/53/93 : OGLE RR Lyrae in LMC (Soszynski+, 2003)
Table 1: Journal of the photometric observations
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Observing date No of observations Photom. cond. Seeing
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Field A FieldB
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B V I B V I arcsec
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04/01/1999 11 20 - 3 10 - clear 1.4-1.8
05/01/1999 3 11 - 11 22 - clear 1.4-1.9
06/01/1999 10 19 - 3 9 - photometric 1.3-1.4
07/01/1999 3 8 - 7 14 - poor-cirri 1.3-1.7
23/01/2001 7 7 7 7 7 7 photometric 0.9-1.6
24/01/2001 7 7 7 7 8 7 photometric 0.8-1.2
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Total 41 72 14 38 70 14
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Byte-by-byte Description of file: table5.dat table6.dat
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Bytes Format Units Label Explanations
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1- 5 I5 --- [DCM2005] Sequential number
7 I1 h RAh Right ascension (J2000)
9- 10 I2 min RAm Right ascension (J2000)
12- 16 F5.2 s RAs Right ascension (J2000)
18 A1 --- DE- Declination sign (J2000)
19- 20 I2 deg DEd Declination (J2000)
22- 23 I2 arcmin DEm Declination (J2000)
25- 29 F5.2 arcsec DEs Declination (J2000)
31- 38 A8 --- VType Variability type (1)
39 A1 --- l_Per [∼ ] Limit flag on Per
40- 46 F7.5 d Per ? Period
47- 48 A2 --- u_Per [: ] Uncertainty flag on Per
50- 60 F11.5 d Epoch ? Epoch for light curve in HJD-2400000 (2)
62- 63 I2 --- o_<Vmag> ? Number of data-point in the V light curve
65- 66 I2 --- o_<Bmag> ? Number of data-point in the B light curve
68- 69 I2 --- o_<Imag> ? Number of data-point in the I light curve
71- 76 F6.3 mag <Vint> ? Intensity-averaged mean V magnitude
77 A1 --- u_<Vint> Uncertainty flag on <Vint>
78- 83 F6.3 mag <Bint> ? Intensity-averaged mean B magnitude
84 A1 --- u_<Bint> Uncertainty flag on <Bint>
85- 90 F6.3 mag <Iint> ? Intensity-averaged mean I magnitude
91 A1 --- u_<Iint> Uncertainty flag on <Iint>
92- 97 F6.3 mag <Vmag> ? Magnitude-averaged mean V magnitude
98 A1 --- u_<Vmag> Uncertainty flag on <Vmag>
99-104 F6.3 mag <Bmag> ? Magnitude-averaged mean B magnitude
105 A1 --- u_<Bmag> Uncertainty flag on <Bmag>
106-111 F6.3 mag <Imag> ? Magnitude-averaged mean I magnitude
112 A1 --- u_<Imag> Uncertainty flag on <Imag>
113 A1 --- l_AV [~> ] Limit flag on AV
114-118 F5.3 mag AV ? Amplitude of the V light curve
119-122 A4 --- u_AV [: ] Uncertainty flag on AV
123 A1 --- l_AB [~> ] Limit flag on AB
124-128 F5.3 mag AB ? Amplitude of the B light curve
129-131 A3 --- u_AB [: ] Uncertainty flag on AB
132 A1 --- l_AI [~> ] Limit flag on AI
133-137 F5.3 mag AI ? Amplitude of the I light curve
138-141 A4 --- u_AI [: ] Uncertainty flag on AI
143-155 A13 --- Notes Notes (details in file "notes.dat")
163-199 A37 --- lcFile Light-curve files, in "ls" subdirectory
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Note (1): the types are ab, ac d for RR Lyr;
AC represent Anomalous Cepheids, Ceph. classical Cepheids,
EB eclipsing binaries and δS delta Sct variables.
Note (2): Of maximum light for the pulsating variables and of the
primary (deeper) minimum light for the eclipsing binaries
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1 A1 --- Note Note code
3- 80 A78 --- Text Text of the note
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Byte-by-byte Description of file: table9.dat
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Bytes Format Units Label Explanations
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1 A1 --- Fld [AB] Field
4- 16 A13 --- MACHO MACHO number
17- 21 I5 --- [DCM2005] Sequential number
23- 31 A9 --- VTypeM MACHO variable type
33- 43 A11 --- VType This paper variable type
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Byte-by-byte Description of file: table10.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- MACHO MACHO number
14- 18 I5 --- [DCM2005] Sequential number
20- 25 F6.3 mag <Vmag>M MACHO magnitude-averaged V magnitude
27- 32 F6.3 mag <Vmag> This paper magnitude-averaged V magnitude
34- 39 F6.3 mag <Vmag>iK Kovacs integrated-averaged V magnitude
41- 46 F6.3 mag <Vmag>i int-averaged this paper V magnitude
48- 53 F6.3 mag DVm <Vmacho>m-<Vmag>m magnitude difference
55- 60 F6.3 mag DVi <VKovacs>i-<Vmag>i magnitude difference
62 A1 --- Fld [AB] Field
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Byte-by-byte Description of file: table11.dat
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Bytes Format Units Label Explanations
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1- 12 A12 --- MACHO MACHO number
14- 18 I5 --- [DCM2005] Sequential number (1)
20- 25 F6.3 mag <Vmag>M MACHO magnitude-averaged V magnitude
27- 32 F6.3 mag <Vmag> ?=- This paper magnitude-averaged V magnitude
34- 39 F6.3 mag <Vmag>iA Alves integrated-averaged V magnitude
41- 46 F6.3 mag <Vmag>i This paper integrated-averaged V magnitude
48- 51 A4 --- VTypeM MACHO variable type
53- 56 A4 --- VType This paper variable type
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Note (1): Stars #7137 and #4509 do not appear in the MACHO on-line
catalogue, values in Col. 3 for these stars are taken from
Alcock et al., 1997ApJ...482...89A 1997ApJ...482...89A (see their Table 1).
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Byte-by-byte Description of file: table14.dat
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Bytes Format Units Label Explanations
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1- 4 A4 --- --- [OGLE]
5- 22 A18 --- OGLE OGLE designation (HHMMSS.SS+DDMMSS.s, J2000)
24- 28 A5 --- VType1 OGLE variable type
30- 35 I6 --- LMCSC21 LMC_SC21 id
37- 41 F5.2 mag <Vmag>1 ?=- OGLE mean V magnitude
43- 47 F5.2 mag <Bmag>1 ?=- OGLE mean B magnitude
49- 53 F5.2 mag <Imag>1 ?=- OGLE mean I magnitude
55- 59 I5 ---- [DCM2005] Sequential number
61- 66 A6 --- VType This paper variable type
67 A1 --- n_VType [*] Questionable VType (1)
69- 74 F6.3 mag <Vmag> ?=- This paper mean V magnitude
76- 81 F6.3 mag <Bmag> ?=- This paper mean B magnitude
83- 88 F6.3 mag <Imag> ?=- This paper mean I magnitude
90- 94 F5.2 mag DV ?=- This paper minus OGLE mean Vmag
(<Vmag>-<Vmag>1)
96-100 F5.2 mag DB ?=- This paper minus OGLE mean Bmag
(<Bmag>-<Bmag>1)
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Note (1): concerns star OGLE052155.09-703212.3: is classified by OGLE II as
CepFA, however OGLE II light curves for this star are rather poor and
the corresponding object in our photometry (#22592) is not was found
to vary.
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Byte-by-byte Description of file: lc/*
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Bytes Format Units Label Explanations
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1- 12 F12.6 d JD-2400000 Julian Date
14- 19 F6.3 mag mag Magnitude in the band
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History:
* 28-Jan-2005: Original version
* 11-Dec-2007: tables 9, 10, 11 and 14 added
Acknowledgements: Gisella Clementini, gisella.clementini(at)bo.astro.it
Luca Di Fabrizio, difabrizio(at)tng.iac.es
(End) Patricia Vannier [CDS] 24-Jan-2005