J/AJ/136/1242 LMC long-period variables from MACHO (Fraser+, 2008)
The properties of long-period variables in the Large Magellanic Cloud from
MACHO.
Fraser O.J., Hawley S.L., Cook K.H.
<Astron. J., 136, 1242-1258 (2008)>
=2008AJ....136.1242F 2008AJ....136.1242F
ADC_Keywords: Magellanic Clouds ; Stars, variable ; Photometry, Cousins
Keywords: galaxies: individual (LMC) - stars: AGB and post-AGB -
stars: variables: other
Abstract:
We present a new analysis of the long-period variables in the Large
Magellanic Cloud (LMC) from the MACHO Variable Star Catalog.
Three-quarters of our sample of evolved, variable stars have periodic
light curves. We characterize the stars in our sample using the
multiple periods found in their frequency spectra. Additionally, we
use single-epoch Two Micron All Sky Survey measurements to construct
the average infrared light curves for different groups of these stars.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 156 56453 The SuperSmoother and CLEANest analyses of the
LPV sample in the LMC
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See also:
II/247 : Variable Stars in the Large Magellanic Clouds (MACHO, 2001)
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 field.tile.sequence identifier
16- 23 F8.5 deg RAdeg Right Ascension in decimal degrees (J2000)
25- 33 F9.5 deg DEdeg Declination in decimal degrees (J2000)
35- 41 F7.2 d Rper Red period from SuperSmoother analysis (1)
43- 49 F7.2 d Bper Blue period from SuperSmoother analysis (1)
51- 56 F6.2 mag RSmag Red magnitude from SuperSmoother analysis
58- 63 F6.2 mag BSmag Blue magnitude from SuperSmoother analysis
65- 71 F7.3 mag Ramp ?=-99. Red amplitude from
SuperSmoother analysis (1)
73- 79 F7.3 mag Bamp ?=-99. Blue amplitude from
SuperSmoother analysis (1)
81- 87 F7.2 d Per0 ?=-99. Primary Fourier period in
Blue light curve (1)
89- 95 F7.3 mag Bamp0 ?=-99. Primary Fourier amplitude in
Blue light curve (1)
97-103 F7.2 d Per1 ?=-99. Secondary Fourier period in
Blue light curve (1)
105-111 F7.3 mag Bamp1 ?=-99. Secondary Fourier amplitude in
Blue light curve (1)
113-117 F5.2 mag Vmag MACHO V (Cousins) band magnitude
119-123 F5.2 mag Rmag MACHO R (Cousins) band magnitude
125-130 F6.2 mag Wmag MACHO "W" reddening-free magnitude (2)
132-137 F6.2 mag Jmag ?=-99.00 2MASS J band magnitude (1)
139-144 F6.2 mag Hmag ?=-99.00 2MASS H band magnitude (1)
146-151 F6.2 mag Ksmag ?=-99.00 2MASS Ks band magnitude (1)
153-156 I4 --- Type ?=-99 Source variability type (3)
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Note (1): A "-99.0" indicates no data.
Note (2): Where the reddening-free W magnitude is defined as: W=R-4(V-R).
Note (3): Classification on the Fourier period-luminosity diagram
as described in the paper:
1-4 = the object lies on Sequences 1-4,
-1 = indicates Sequence E,
-2 = indicates Sequence D,
9 = indicates that the star is identified with the One-Year Artifact,
0 = is a star outside the boundaries of any period-luminosity
classification,
-99 = we were unable to classify this star, most likely due
to the lack of a Red light curve or a Ks magnitude.
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History:
From electronic version of the journal
References:
Fraser, Paper I 2005AJ....129..768F 2005AJ....129..768F
(End) Greg Schwarz [AAS], Patricia Vannier [CDS] 06-Apr-2011