J/A+A/282/137 Vilnius Photometry of HD211853 (Annuk 1994)
Photometry of the Wolf-Rayet binary HD211853 in the Vilnius photometric system
Annuk K.
<Astron. Astrophys. 282, 137 (1994)>
=1994A&A...282..137A 1994A&A...282..137A
ADC_Keywords: Binaries, eclipsing; Photometry, Vilnius
Keywords: photometry - binaries - stars: Wolf-Rayet -
stars: individual (HD211853)
Description:
New photometric observations of the Wolf-Rayet binary HD 211853 are
presented. They were obtained with the 1-m reflector of the Institute
of Theretical Physics and Astrophysics of the Lithuanian Academy of
Sciences on Maydanak Mountain in Uzbekistan during 15 nights in August
1991; a single-channel photometer equipped with the Vilius photometric
system filters was used.
The period search routine confirms the period of 6.6884 days for pair
A. For pair B, a new corrected ephemeris (T0 = 2443689.16, P = 3.4696
days) is determined. This ephemeris allows to present light minima of
all available photometric data in the same phase. Moreover, they are
in good accordance with the absorption lines radial velocity residuals
of Hiltner (1945ApJ...101..356H 1945ApJ...101..356H) and Massey (1981ApJ...244..157M 1981ApJ...244..157M). It
is shown that the third possible period of 2.34607 days found by Panov
& Seggewiss (1990A&A...227..117P 1990A&A...227..117P) is an alias from the half period of
approximately 3.47 days.
Objects:
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RA (2000) DE Designation(s)
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22 18 45.6 +56 07 34 HD 211853 = WR 153 = MR 116
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 68 66 Photometric observations of HD211853
relative to the comparison star
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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- 12 F12.4 d JD [2448473/2448497]+ Julian Date
15- 19 F5.3 --- Phase Phase: (T = JD2443690.32+6.6884*Ephem.)
22- 26 F5.3 mag vmag v (Vilnius) magnitude
29- 33 F5.3 mag (v-s) v-s (Vilnius) color
36- 40 F5.3 mag (z-v) z-v (Vilnius) color
42- 47 F6.3 mag (y-z) y-z (Vilnius) color
50- 54 F5.3 mag (x-y) x-y (Vilnius) color
56- 61 F6.3 mag (p-x) p-x (Vilnius) color
63- 68 F6.3 mag (u-p) u-p (Vilnius) color
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Filters of the Vilnius system are:
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Filter Lambda Width
(A) (A)
-------------------
u 3450 400
p 3740 260
x 4050 220
y 4660 260
z 5160 210
v 5440 260
s 6550 200
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Historical Notes:
* 03-Nov-1993: first archived
* 05-Jul-1995: completed JD in table2
(End) Patricia Bauer [CDS] 03-Nov-1993