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J/A+AS/119/547 IR photometry of ESO calibration stars (van der Bliek+ 1996)
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Infrared aperture photometry at ESO (1983-1994) and its future use.
Van der Bliek N.S., Manfroid J., Bouchet P.
<Astron. Astrophys. Suppl. Ser. 119, 547 (1996)>
=1996A&AS..119..547V (SIMBAD/NED BibCode)
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ADC_Keywords: Infrared sources ; Photometry, infrared
Keywords: instrumentation: photometers - techniques: photometric -
infrared: stars
Description:
We describe the infrared (IR) photometric system for the single
channel photometers at ESO, which have been used from 1983 until 1994.
In addition to the broadband near infrared (NIR, 1-5{mu}m) photometric
system presented in 1991 by Bouchet et al. and Bersanelli et al., we
describe a narrow-band NIR photometric system and a mid infrared (MIR,
7-20{mu}m) photometric system. We also extend the set of NIR standard
stars by Bouchet et al. towards fainter objects (K=~9). The
photometric data of the standard stars in these systems were extracted
from the complete IR photometric data archive of ESO, covering 10
years. The zeropoints of the NIR photometry are set by assuming that
HR 3314 has a V-magnitude of 3.89, and that V-K=-0.05, J-K=-0.01,
H-K=-0.01, K-L'=0.00, K-M=0.00. The zeropoints of the MIR photometry
are set by assuming that the colours of{beta} Hyi (HR 0098) and
{alpha} CenA (HR 5459) are equal to the colours of the Sun. We adopt
the absolute calibration of Megessier (1995A&A...296..771M) for the
NIR and we argue that this calibration can be extrapolated to 20{mu}m,
using the MIR calibrations by Rieke et al. (1985AJ.....90..900R) and
Cohen et al. (1992AJ....104.1650C). The definition of the zeropoints
is consistent with the absolute calibration. We obtained accurate
({sigma}=~0.02mag.) NIR photometry of about 240 standard stars and MIR
photometry of about 40 standard stars ({sigma}=~0.04mag). Comparison
of our NIR photometric system with other well established systems
shows that there are some small colour dependencies and zeropoint
offsets which are always smaller than about 0.02mag. except for the L'
band.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table5.dat 122 253 NIR (JHKL'M) broad band photometry of ESO
calibration stars
table6.dat 122 113 MIR broad band photometry of ESO calibration stars
table7.dat 121 43 MIR photometry of ESO calibration stars
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star designation
11- 12 I2 h RAh Right Ascension 2000 (hours)
14- 15 I2 min RAm Right Ascension 2000 (minutes)
17- 18 I2 s RAs Right Ascension 2000 (seconds)
20 A1 --- DE- Declination 2000 (sign)
21- 22 I2 deg DEd Declination 2000 (degrees)
24- 25 I2 arcmin DEm Declination 2000 (minutes)
27- 28 I2 arcsec DEs ? Declination 2000 (seconds)
30- 37 A8 --- Sp Spectral Type & Luminosity Class
39- 44 F6.3 mag Jmag J magnitude (1.24 microns)
46- 50 F5.3 mag e_Jmag Standard deviation of Jmag
52- 54 I3 --- o_Jmag Number of observations in Jmag
56- 61 F6.3 mag Hmag H magnitude (1.63 microns)
63- 67 F5.3 mag e_Hmag Standard deviation of Hmag
69- 71 I3 --- o_Hmag Number of observations in Hmag
73- 78 F6.3 mag Kmag K magnitude (2.19 microns)
80- 84 F5.3 mag e_Kmag Standard deviation of Kmag
86- 88 I3 --- o_Kmag Number of observations in Kmag
90- 95 F6.3 mag L'mag ? L' magnitude (3.79 microns)
97-101 F5.3 mag e_L'mag ? Standard deviation of L'mag
103-105 I3 --- o_L'mag ? Number of observations in L'mag
107-112 F6.3 mag Mmag ? M magnitude (4.64 microns)
114-118 F5.3 mag e_Mmag ? Standard deviation of Mmag
120-122 I3 --- o_Mmag ? Number of observations in Mmag
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star designation
11- 12 I2 h RAh Right Ascension 2000 (hours)
14- 15 I2 min RAm Right Ascension 2000 (minutes)
17- 18 I2 s RAs Right Ascension 2000 (seconds)
20 A1 --- DE- Declination 2000 (sign)
21- 22 I2 deg DEd Declination 2000 (degrees)
24- 25 I2 arcmin DEm Declination 2000 (minutes)
27- 28 I2 arcsec DEs ? Declination 2000 (seconds)
30- 37 A8 --- Sp Spectral Type & Luminosity Class
39- 44 F6.3 mag H0 H_0 magnitude (1.58 microns)
46- 50 F5.3 mag e_H0 Standard deviation of H_0
52- 54 I3 --- o_H0 Number of observations in H_0
56- 61 F6.3 mag BrGamma Br_gamma magnitude (2.16 microns)
63- 67 F5.3 mag e_BrGamma Standard deviation of Br_gamma
69- 71 I3 --- o_BrGamma Number of observations in Br_gamma
73- 78 F6.3 mag K0 K_0 magnitude (2.22 microns)
80- 84 F5.3 mag e_K0 Standard deviation of K_0
86- 88 I3 --- o_K0 Number of observations in K_0
90- 95 F6.3 mag CO ? CO magnitude (2.29 microns)
97-101 F5.3 mag e_CO ? Standard deviation of CO
103-105 I3 --- o_CO ? Number of observations in CO
107-112 F6.3 mag L0 ? L_0 magnitude (3.70 microns)
114-118 F5.3 mag e_L0 ? Standard deviation of L_0
120-122 I3 --- o_L0 ? Number of observations in L_0
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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- 8 A8 --- Name Star designation
10- 11 I2 h RAh Right Ascension 2000 (hours)
13- 14 I2 min RAm Right Ascension 2000 (minutes)
16- 17 I2 s RAs Right Ascension 2000 (seconds)
19 A1 --- DE- Declination 2000 (sign)
20- 21 I2 deg DEd Declination 2000 (degrees)
23- 24 I2 arcmin DEm Declination 2000 (minutes)
26- 27 I2 arcsec DEs Declination 2000 (seconds)
29- 36 A8 --- Sp Spectral Type & Luminosity Class
38- 43 F6.3 mag Nmag ? N magnitude (10.36 microns)
45- 49 F5.3 mag e_Nmag ? Standard deviation of Nmag
51- 53 I3 --- o_Nmag ? Number of observations in Nmag
55- 60 F6.3 mag N1 N1 magnitude (8.38 microns)
62- 66 F5.3 mag e_N1 Standard deviation of N1
68- 70 I3 --- o_N1 Number of observations in N1
72- 77 F6.3 mag N2 N2 magnitude (9.69 microns)
79- 83 F5.3 mag e_N2 Standard deviation of N2
85- 87 I3 --- o_N2 Number of observations in N2
89- 94 F6.3 mag N3 N3 magnitude (12.89 microns)
96-100 F5.3 mag e_N3 Standard deviation of N3
102-104 I3 --- o_N3 Number of observations in N3
106-111 F6.3 mag Q0 ? Q0 magnitude (18.06 microns)
113-117 F5.3 mag e_Q0 ? Standard deviation of Q0
119-121 I3 --- o_Q0 ? Number of observations in Q0
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Acknowledgements: Nicole van der Bliek <nvdbliek@regge.strw.LeidenUniv.nl>
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(End) Patricia Bauer [CDS] 02-Apr-1996