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J/A+A/319/867 V436 Persei = 1 Persei byBV photometry (Harmanec+ 1997)
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Search for forced oscillations in binaries. I. The eclipsing and spectroscopic
binary V436 Persei = 1 Persei
Harmanec P., Hadrava P., Yang S., Holmgren D., North P., Koubsky P.,
Kubat J., Poretti E.
<Astron. Astrophys. 319, 867 (1997)>
=1997A&A...319..867H (SIMBAD/NED BibCode)
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ADC_Keywords: Binaries, eclipsing ; Binaries, spectroscopic
Keywords: stars: binaries: eclipsing - stars: binaries: spectroscopic -
stars: fundamental parameters - stars: oscillations -
stars: individual: V436 Per = 1 Per
Abstract:
Outline of a project aimed at testing the presence of rapid
line-profile variations in the atmospheres of hot components of close
binaries is presented and its first results are described. An analysis
of new electronic spectra of the eclipsing binary V436 Per from three
observatories and of photoelectric observations, obtained earlier by
several authors, leads to a unique determination of all basic physical
elements of this interesting object. The first practical application
of a new method of spectral disentangling allowed us to obtain, for
the first time, individual accurate line profiles of both binary
components and to derive their rotational velocities and orbital
radial-velocity curves. We also detected absorption sub-features
travelling from blue to red accross the He I 6678 line profile, in a
series of six spectra taken during one night. At least one of the
components of V436 Per is, therefore, a new hot line-profile variable.
Objects:
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RA (2000) DE Designation(s)
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01 51 59.3 +55 08 51 V436 Per = 1 Per = HD 11241 = HR 533
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3a 30 869 V436 Per yellow photoelectric observations
table3b 30 209 V436 Per blue photoelectric observations
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Byte-by-byte Description of file: table3a table3b
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Bytes Format Units Label Explanations
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1- 12 F12.4 d HJD Heliocentric Julian date
14- 15 A2 --- Color [yVBGb ] Color (1)
17- 21 F5.3 mag Mag Measured V436 Per magnitude in color band
23- 27 F5.2 --- w_Mag Weight assigned to individual data sets
29- 30 I2 --- Code Numerical code identifying sources of data (2)
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Note (1): y, b : Stromgren y&b magnitudes
V, B : Johnson V&B magnitudes
VG, BG: Geneve V&B magnitudes
Note (2): 3: y (Stromgren) magnitude, Kurtz (1977PASP...89..939K)
4: V Geneve magnitude, North & Rufener (1981IBVS.2036....1N)
6: V Johnson magnitude, Poretti (1982IBVS.2129....1P)
7: V Johnson magnitude, Bohme (1984IBVS.2507....1B)
8: V Johnson magnitude, Poretti (1984IBVS.2529....1P) and this paper
11: B Johnson magnitude, Gussow (1929AN....237..321G) -
observations relative to 4 Per
12: B Johnson magnitude, Gussow (1929AN....237..321G) -
observations relative to 2 Per
14: B Geneve magnitude, North & Rufener (19811IBVS.2036....1N)
15: b Stromgren magnitude, Percy (1982IBVS.2085....1P)
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Acknowledgements: Petr Harmanec <hec@sunstel.asu.cas.cz> or <hec@mbox.cesnet.cz>
References:
Bohme D., 1984, IAU Inf. Bull. Var. Stars, 2507, 1 =1984IBVS.2507....1B
Gussow M., 1929, Astron. Nachr. 237, 321 =1929AN....237..321G
Kurtz D.W., 1977, PASP 89, 939 =1977PASP...89..939K
North P. et al., 1981, IAU Inf. Bull. Var. Stars, 2036, 1 =1981IBVS.2036....1N
Percy J.R., 1982, IAU Inf. Bull. Var. Stars, 2085, 1 =1982IBVS.2085....1P
Poretti E., 1982, IAU Inf. Bull. Var. Stars, 2129, 1 =1982IBVS.2129....1P
Poretti E., 1984, IAU Inf. Bull. Var. Stars, 2529, 1 =1984IBVS.2529....1P
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(End) Patricia Bauer [CDS] 03-Sep-1996