J/MNRAS/399/1709 Near-infrared survey of Miras (Matsunaga+, 2009)
A near-infrared survey of Miras and the distance to the Galactic Centre.
Matsunaga N., Kawadu T., Nishiyama S., Nagayama T., Hatano H., Tamura M.,
Glass I.S., Nagata T.
<Mon. Not. R. Astron. Soc., 399, 1709-1729 (2009)>
=2009MNRAS.399.1709M 2009MNRAS.399.1709M
ADC_Keywords: Stars, variable ; Photometry, infrared ; Stars, distances
Keywords: stars: AGB and post-AGB - stars: variables: other - dust, extinction -
Galaxy: centre - Galaxy: structure - infrared: stars
Abstract:
We report the results of a near-infrared survey for long-period
variables in a field of view of 20x30arcmin2 towards the Galactic
Centre (GC). We have detected 1364 variables, of which 348 are
identified with those reported in Glass et al. (2001. Cat.
J/MNRAS/321/77). We present a catalogue and photometric measurements
for the detected variables and discuss their nature.
Description:
We used the Infrared Survey Facility (IRSF) 1.4m telescope and the
SIRIUS near-IR camera for our monitoring survey. A large part of the
data was obtained in 2005 and 2006, while additional data were
collected between 2001 and 2008.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table6.dat 80 1364 Catalogue of variable stars
table9.dat 40 175 Extinctions AKs and distance moduli mu0
estimated for Miras
table7.dat 33 116887 Light variations
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See also:
J/MNRAS/321/77 : Large-amplitude variables near Galactic Centre (Glass+, 2001)
II/295 : Spitzer IRAC survey of the galactic center (Ramirez+, 2008)
Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 4 I04 --- Seq Sequential number
6- 21 A16 --- Name Name (HHMMSSss+DDMMSSs)
23- 27 F5.2 mag Jmag ?=99.99 J mean magnitude
29- 32 F4.2 mag Jamp ?=0.00 Peak-to-peak amplitude for J magnitude
34- 38 F5.2 mag Hmag ?=99.99 H mean magnitude
40- 43 F4.2 mag Hamp ?=0.00 Peak-to-peak amplitude for H magnitude
45- 49 F5.2 mag Ksmag ?=99.99 Ks mean magnitude
51- 54 F4.2 mag Kamp ?=0.00 Peak-to-peak amplitude for Ks magnitude
56 I1 --- f_Jmag [0/6] Problem on Jmag when non-zero (1)
57 I1 --- f_Hmag [0/6] Problem on Hmag when non-zero (1)
58 I1 --- f_Ksmag [0/6] Problem on Ksmag when non-zero (1)
60- 66 I7 --- SSTGC ? Ramirez et al. (2008, Cat. II/295)
counterpart
68- 74 A7 --- [GMC2001] Glass et al. (G01, 2001. Cat. J/MNRAS/321/77)
counterpart
76- 78 I3 d Per ? Period
80 I1 --- f_Per [0/5] Flag on period (0=OK) (2)
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Note (1): Flags on magnitudes as follows:
0 = The magnitude was obtained without any clear problems
1 = We did not obtain the magnitude because the object often falls
out of the field of view
2 = We did not obtain the magnitude because the object is too bright
3 = We did not obtain the magnitude because the object is too faint
4 = We obtained the mean magnitude, but it is affected by its
location around the edge of the images
5 = We obtained the mean magnitude, but it is affected by saturation
or deviation from the linear response
6 = We obtained the mean magnitude, but it is affected by the fact that
the object was not detected in some cases because of its faintness
Note (2): Flag on period as follows:
0 = PG01 and PIRSF agree with each other to within 0.075dex.
We adopt PIRSF
1 = PG01 and PIRSF disagree and we adopt PIRSF
2 = PG01 is not given and we adopt PIRSF
3 = PG01 fit our light curve but PIRSF is not properly obtained.
We adopt PG01
4 = PG01 does not fit the IRSF light curve. No periodicity is found
5 = PG01 is not given and no clear periodicity is found with the
IRSF data
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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- 4 I04 --- Seq Sequential number of star
6- 10 F5.2 mag AHK,Ks ?=99.99 Extinction AKs from HK pair of
filter bands (1)
12- 16 F5.2 mag muJK0 ?=99.99 Distance moduli from JK pair of
filter bands (2)
18- 22 F5.2 mag AJK,Ks ?=99.99 Extinction AKs from JK pair of
filter bands (1)
24- 28 F5.2 mag muHK0 ?=99.99 Distance moduli from HK pair of
filter bands (2)
30- 34 F5.2 mag AJH,Ks ?=99.99 Extinction AKs from JH pair of
filter bands (1)
36- 40 F5.2 mag muJH0 ?=99.99 Distance moduli from JH pair of
filter bands (2)
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Note (1): For example, AHH,Ks= (H-Ks)/(rH-1)-(MH-MKs)/(rH-1),
rH=1.731
Note (2): For example, muHK0=(rHKs-H)/(rH-1)-(rHMKs-MH)/(rH-1),
rH=1.731
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Byte-by-byte Description of file: table7.dat
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Bytes Format Units Label Explanations
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1- 4 I04 --- Seq Sequential number of star
6- 15 F10.4 d MJD Modified Julian date
17- 21 F5.2 mag Jmag ?=99.99 J mean magnitude
23- 27 F5.2 mag Hmag ?=99.99 H mean magnitude
29- 33 F5.2 mag Ksmag ?=99.99 Ks mean magnitude
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Mar-2010