J/AZh/71/717 Polarimetric Observations of BL Lac (Gagen-Torn+ 1994)
Polarimetric Observations of BL Lac
Gagen-Torn V.A., Marchenko S.G., Yurchenko A.V., Yakovleva V.A.
<Astron. Zh. 71, 717 (1994)>
=1994AZh....71..717G 1994AZh....71..717G
ADC_Keywords: BL Lac objects ; Polarization
Description:
This paper continues publications that report the results of
photoelectric polarization measurements of the blazar BL Lac.
Earlier, we published observational data obtained over the period
1969-1982 (Hagen-Torn et al., 1984AZh....61..925H 1984AZh....61..925H). Here, we
discuss the observations over the period 1983-1991.
Objects:
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RA (2000) DE Designation(s)
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22 02 43.3 +42 16 40 BL Lac
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table 63 201 Results from polarimetric observations
of BL Lac
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Byte-by-byte Description of file: table
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Bytes Format Units Label Explanations
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1- 14 A14 --- Date Date of observation (month, day)
16- 19 I4 yr Year [1983/1991] Year of the observation.
21- 30 F10.2 d JD [2445499/2448514] Julian Day
33- 36 F4.1 % P Polarization parameters P
37 A1 --- u_P Uncertainty flag on P
39- 41 F3.1 % e_P ? Error on P
44- 46 I3 deg Q Polarization parameters Q
47 A1 --- u_Q Uncertainty flag on Q
49- 50 I2 deg e_Q ? Error on Q
54 I1 --- d [1,3] Flag for aperture used in the observation:
1 - 18.8" ; 3 - 26.7"
57- 60 F4.2 --- Fo/Fb Ratio of the object flux to the background flux
63 I1 --- N Number of observations
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(End) Veta Avedisova [INASAN] 29-Jan-1997