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J/MNRAS/289/729 BVRIJHK photometry of red LMC supergiants (Oestreicher+ 1997)
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Red supergiants in the LMC. I.
BVRIJHK photometry, magnitudes and intrinsic colours.
Oestreicher M.O., Schmidt-Kaler T., Wargau W.
<Mon. Not. R. Astron. Soc. 289, 729 (1997)>
=1997MNRAS.289..729O
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ADC_Keywords: Photometry, UBVRIJKLMNH ; Stars, late-type ; Stars, supergiant
Keywords: stars: fundamental parameters - stars: late-type -
supergiants - Magellanic Clouds
Description:
(BV)_J_(RI)_C_ observations for 185 and additional JHK observations
for 53 red supergiant candidates in the Large Magellanic Cloud (LMC)
are presented. The data have been reduced discussing carefully the
dependence of effective wavelengths on the spectral energy
distribution of the star, which is very strong especially for the
Cousins R band. Non-linear colour dependences of transformation
coefficients vor the V magnitude and the R-I colour have been taken
into account. The mean error of the BVRI data is 0.03 to 0.04 mag,
while that of the JHK observations is 0.02mag.
The MK types are not given to the stars, as the classifications given
in the literature are mostly very uncertain. The spectra we have
obtained for 88 of the stars will be discussed in a forthcoming paper
where we will give directly physical properties like Mbol and Teff
instead of MK types. Most of the stars are supergiants of type late K
to early M.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
bvri.dat 116 185 BVRI photometry (table 4 of paper)
jhk.dat 59 53 JHK photometry (table 9 of paper)
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Byte-by-byte Description of file: bvri.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Star *Identification
11- 14 A4 --- WOH Identification number according to
Westerlund et al. (1981A&AS...43..267W)
17- 21 A5 --- RM Identification number according to
Rebeirot et al. (1983A&AS...51..277)
24- 28 I5 --- HV ?Harvard variable identification number
30- 31 I2 h RAh Right Ascension 1975 (hours)
33- 34 I2 min RAm Right Ascension 1975 (minutes)
36- 39 F4.1 s RAs Right Ascension 1975 (seconds)
41 A1 --- DE- Declination 1975 (sign)
42- 43 I2 deg DEd Declination 1975 (degrees)
45- 46 I2 arcmin DEm Declination 1975 (minutes)
48- 49 I2 arcsec DEs Declination 1975 (seconds)
52- 57 F6.3 mag Vmag V magnitude
60- 64 F5.3 mag e_Vmag Error of Vmag
67- 71 F5.3 mag B-V B-V colour
74- 78 F5.3 mag e_B-V Error of B-V
81- 85 F5.3 mag V-R V-R colour
88- 92 F5.3 mag e_V-R Error of V-R
95- 99 F5.3 mag R-I R-I colour
102-106 F5.3 mag e_R-I Error of R-I
109 I1 --- Nobs Number of measurements
111 A1 --- Jflag [J] when JHK photometry exists in jhk.dat
112-115 A4 --- Rem *[*, ] Remark flags
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Note on Star:
SP = Sanduleak & Philip (1977)
FD = Fehrenbach & Duflot (1970A&ASS...1....1F)
RM = Rebeirot et al. (1983A&AS...51..277)
Note on Rem:
Stars with one asterisk have been identified spectroscopically
as foreground stars.
Stars with two asterisk have uncertain photometries due to
extrapolation of the transformation.
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Byte-by-byte Description of file: jhk.dat
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Bytes Format Units Label Explanations
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1- 9 A9 --- Star Identification, as in file bvri.dat
12- 17 F6.3 mag Jmag J magnitude
20- 24 F5.3 mag e_Jmag Error of Jmag
27- 31 F5.3 mag J-H J-H colour
34- 38 F5.3 mag e_J-H Error of J-H colour
41- 45 F5.3 mag H-K H-K colour
48- 52 F5.3 mag e_H-K Error of H-K colour
55- 58 A4 --- Rem *Remark flags
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Note on Rem:
Stars with one asterisk have been identified spectroscopically as
foreground stars.
Stars with two asterisk have probably uncertain photometries due
to bad weather and technical problems.
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Acknowledgements:
Michael Oestreicher <mio@astro.ruhr-uni-bochum.de>
History:
* 30-Sep-1997: data kindly supplied by Michael Oestreicher
(mio@astro.ruhr-uni-bochum.de)
* 26-Oct-1998: Corrections in the following records of bvri.dat:
#013: HV number is 5498 instead of 5499
#109: WOH number is S338 instead of S388
#151: position, WOH and RM numbers corrected.
#185: WOH number corrected.
References:
Fehrenbach Ch., Duflot M., Petit M. 1970A&ASS...1....1F
Rebeirot E., Martin N., Mianes P., Prevot L., Robin A., Rousseau J.,
Peyrin Y. 1983A&AS...51..277
Sanduleak N., Philip A.G.D. 1977, Publ. of the Warner and Swasey Obs.
2, No.5 (1977PW&SO...2..105S)
Westerlund B.E., Olander N., Hedin B. 1981A&AS...43..267W
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(End) Francois Ochsenbein [CDS] 26-Oct-1998