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J/A+AS/106/141 Photometry of luminous blue variables (Spoon+ 1994)
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Variability of luminous blue variables. I. Intermediate-band photometry
Spoon H.W.W., De Koter A., Sterken C., Lamers H.J.G.L.M., Stahl O.
<Astron. Astrophys. Suppl. Ser. 106, 141 (1994)>
=1994A&AS..106..141S
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ADC_Keywords: Stars, variable ; Stars, early-type ; Photometry, uvby ;
Photometry, VBLUW ; Photometry, Geneva
Keywords: stars: activity - stars: early type - stars: emission-line -
stars: variable - stars: supergiants
Abstract:
An extensive photometric dataset has been compiled for six Luminous
Blue Variables (LBVs). The dataset comprises published and unpublished
measurements in the Stroemgren, Geneva and Walraven photometric
systems. The measurements within each individual system are presented
in a uniform manner. Combining observations from these three
photometric systems, a VJ light curve has been constructed for each
LBV. Examination of the light curves reveals variations on widely
different magnitude and time scales.
For explanation about the photometric sytems, see the definitions
in the General Catalogue of Photometric Data:
about uvby (Stroemgren) <GCPD/04> ; Geneva <GCPD/13> ;
Walraven VBLUW <GCPD/11>
Objects:
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RA (2000) DE Designation(s)
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17 41 58.9 -33 30 13 HD 160529 = V* V905 Sco
05 18 14.3 -69 14 59 S Dor = HD 35343 = MWC 108 = RMC 88
10 56 11.6 -60 27 13 AG Car = HD 94910 = AG Car = MWC 216
10 22 53.9 -59 37 29 HR Car = HD 90177 = MWC 202
05 02 06.0 -71 20 06 RMC 71 = HD 269006
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4 27 65 ESO Stromgren photometry (HD 160529)
table5 61 15 LTPV Stromgren photometry (S Dor)
table6 49 36 SAAO Stromgren photometry (AG Car, HR Car)
table7 75 26 Geneva/Johnson photometry (HR Car)
table8 73 448 VBLUW/Johnson photometry (AG Car, HR Car,
RMC 71, S Dor)
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See also:
II/170 : Long-Term Photometry of Variables at ESO I (1991)
II/188 : Long-Term Photometry of Variables at ESO II (1993)
II/200 : Long-Term Photometry of Variables at ESO III (1995)
II/202 : Long-Term Photometry of Variables at ESO IV (1995)
Byte-by-byte Description of file: table4
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Bytes Format Units Label Explanations
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1- 9 A9 --- Name Star name
11- 21 F11.3 d JDhel Heliocentric Julian day
23- 27 F5.3 mag Vmag Johnson V
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Byte-by-byte Description of file: table5 table6
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name Star name
8- 19 F12.4 d JDhel Heliocentric Julian Date
21- 26 F6.3 mag Vmag Johnson V
28- 33 F6.3 mag b-y Stromgren b-y
36- 41 F6.3 mag v-b Stromgren v-b
44- 49 F6.3 mag u-v Stromgren u-v
55 I1 --- Nc []? Number of comparison stars used
in correction
61 I1 --- Sys []? LTPV instrumental system ident
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Byte-by-byte Description of file: table7
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name star name
8- 19 F12.4 d JDhel Heliocentric Julian Date
28- 33 F6.3 mag (U-B)g Geneva U-B
35- 40 F6.3 mag (V-B)g Geneva V-B
42- 47 F6.3 mag (B1-B)g Geneva B1-B
49- 54 F6.3 mag (B2-B)g Geneva B2-B
56- 61 F6.3 mag (V1-B)g Geneva V1-B
63- 68 F6.3 mag (G-B)g Geneva G-B
70- 75 F6.3 mag (B-V)j Johnson B-V derived from Geneva photometry
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Byte-by-byte Description of file: table8
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Bytes Format Units Label Explanations
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1- 6 A6 --- Name Star name
8- 19 F12.4 d JDhel Heliocentric Julian Date
21- 26 F6.3 mag (V)w Walraven V, log(intensity)
28- 33 F6.3 mag (V-B)w Walraven V-B, log(intensity)
35- 40 F6.3 mag (B-U)w []? Walraven B-U, log(intensity)
42- 47 F6.3 mag (U-W)w []? Walraven U-W, log(intensity)
49- 54 F6.3 mag (B-L)w []? Walraven B-L, log(intensity)
56- 57 I2 --- E Errorcode
61- 66 F6.3 mag Vmag Johnson V derived from Walraven photometry
68- 73 F6.3 mag (B-V)j Johnson B-V derived from Walraven photometry
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(End) Patricia Bauer [CDS] 22-Mar-1994