J/AJ/125/3311 JHKL'M photometry of northern bright stars (Kidger+, 2003)
High-precision near-infrared photometry of a large sample of bright stars
visible from the northern hemisphere.
Kidger M.R., Martin-Luis F.
<Astron. J. 125, 3311 (2003)>
=2003AJ....125.3311K 2003AJ....125.3311K
ADC_Keywords: Stars, bright ; Photometry, infrared
Keywords: color-magnitude diagrams - methods: observational -
stars: fundamental parameters - stars: variables: general
Abstract:
We present the results of 8yr of infrared photometric monitoring of a
large sample of stars visible from Teide Observatory (Tenerife, Canary
Islands). The final archive is made up of 10949 photometric measures
through a standard InSb single-channel photometer system, principally
in JHK, although some stars have measures in L'. The core of this list
of stars is the standard-star list developed for the Carlos Sanchez
Telescope. A total of 298 stars have been observed on at least two
occasions on a system carefully linked to the zero point defined by
Vega. We present high-precision photometry for these stars. The median
uncertainty in magnitude for stars with a minimum of four observations
and thus reliable statistics ranges from 0.0038mag in J to 0.0033mag
in K. Many of these stars are faint enough to be observable with array
detectors (42 are K>8) and thus to permit a linkage of the bright and
faint infrared photometric systems. We also present photometry of an
additional 25 stars for which the original measures are no longer
available, plus photometry in L' and/or M of 36 stars from the main
list.
Description:
The immense majority of the observations reported here were taken by
one of us (M.R. Kidger) either during scheduled observing time, as
routine observations of standard stars, or in service observing nights
using the 1.5m CST at Teide Observatory (Tenerife, Spain). A rigorous
observing method was used to ensure consistent photometry over the 8yr
(from 1990 to 1998) covered here.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 176 299 Results of photometry of stars taken between 1990
and 1999 with the CVF photometer on the
Carlos Sanchez Telescope
table3.dat 81 60 Results of additional photometry of 60 Stars
taken with the CVF photometer on the
Carlos Sanchez Telescope
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Table 1: Filter set used with the CVF photometer on the CST.
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Filter λeff FWHM
µm
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J 1.258 0.281
H 1.647 0.337
K 2.205 0.41
L' 3.830 0.64
M 4.743 0.60
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Note: Effective wavelength at 77K, the standard operating
temperature with nitrogen at its triple point.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- Name Object catalog name
12 A1 --- n_Name [abcd] L' photometry (1)
14- 31 A18 --- OName Other designation
33- 34 I2 h RAh Hour of right ascension (J2000)
36- 37 I2 min RAm Minute of right ascension (J2000)
39- 44 F6.3 s RAs Second of right ascension (J2000)
46 A1 --- DE- Sign of the declination (J2000)
47- 48 I2 deg DEd Degree of declination (J2000)
50- 51 I2 arcmin DEm Arcminute of declination (J2000)
53- 58 F6.3 arcsec DEs Arcsecond of declination (J2000)
60- 67 A8 --- SpType SIMBAD spectral type
69- 73 F5.2 mag Bmag SIMBAD B-band magnitude
75- 79 F5.2 mag Vmag SIMBAD V-band magnitude
81- 86 F6.3 mag Jmag The J-band magnitude
88- 93 F6.4 mag e_Jmag Error in Jmag
95- 97 I3 --- o_Jmag Number of observations in Jmag
99-104 F6.3 mag Hmag The H-band magnitude
106-111 F6.4 mag e_Hmag Error in Hmag
113-115 I3 --- o_Hmag Number of observations in Hmag
117-123 F7.4 mag Kmag The K-band magnitude
125-130 F6.4 mag e_Kmag Error in Kmag
132-134 I3 --- o_Kmag Number of observations in Hmag
136-140 F5.2 mag B-V ? The (B-V) color index
142-147 F6.3 mag V-J ? The (V-J) color index
149-154 F6.3 mag V-H ? The (V-H) color index
156-161 F6.3 mag V-K ? The (V-K) color index
163-168 F6.3 mag J-H ? The (J-H) color index
170-175 F6.3 mag H-K ? The (H-K) color index
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Note (1): Note on Name as follows:
a = Photometry in L': L' = 2.273, error = 0.0056, no. points = 6.
b = Photometry in L': L' = 1.968, error = 0.0054, no. points = 3.
c = Photometry in L': L' = 3.363, error = 0.0366, no. points = 3.
d = Photometry in L': L' = 2.033, error = 0.0025, no. points = 2.
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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- 7 A7 --- Name Object catalog name
9 A1 --- List [*] * indicates object in the main list
11- 12 I2 h RAh Hour of right ascension (J2000)
14- 15 I2 min RAm Minute of right ascension (J2000)
17- 22 F6.3 s RAs Second of right ascension (J2000)
24 A1 --- DE- Sign of the declination (J2000)
25- 26 I2 deg DEd Degree of declination (J2000)
28- 29 I2 arcmin DEm Arcminute of declination (J2000)
31- 35 F5.2 arcsec DEs Arcsecond of declination (J2000)
37- 46 A10 --- SpType SIMBAD spectral type
48- 51 F4.2 mag Vmag SIMBAD V-band magnitude
53- 57 F5.3 mag Jmag ? The J-band magnitude (1)
59- 63 F5.3 mag Hmag ? The H-band magnitude (1)
65- 69 F5.3 mag Kmag ? The K-band magnitude (1)
71- 75 F5.3 mag L'mag ? The L'-band magnitude (1)
77- 81 F5.3 mag Mmag ? The M-band magnitude (1)
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Note (1): The original data are not available, and thus we cannot give
explicit errors, although they should be similar to those in Table 2.
Of these stars, 24 are not included in Table 2; 36 are included in
Table 2, for which we present data in L' and/or M.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 24-Oct-2003