J/A+A/606/A101 Polarization of quasars (Hutsemekers+, 2017)
Optical linear polarization measurements of quasars obtained with the 3.6m
telescope at the La Silla Observatory.
Hutsemekers D., Hall P., Sluse D.
<Astron. Astrophys. 606, A101 (2017)>
=2017A&A...606A.101H 2017A&A...606A.101H (SIMBAD/NED BibCode)
ADC_Keywords: QSOs ; Polarization
Keywords: quasars: general - polarization
Abstract:
We report 192 previously unpublished optical linear polarization
measurements of quasars obtained in April 2003, April 2007, and
October 2007 with the European Southern Observatory Faint Object
Spectrograph and Camera (EFOSC2) instrument attached to the 3.6m
telescope at the La Silla Observatory. Each quasar was observed once.
Among the 192 quasars, 89 have a polarization degree p≥0.6%, 18 have
p≥2%, and two have p≥10%.
Description:
This Table contains optical linear polarization measurements of 192
quasars obtained in April 2003, April 2007, and October 2007 with the
ESO Faint Object Spectrograph and Camera (EFOSC2) instrument attached
to the 3.6m telescope at the La Silla Observatory.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table4.dat 139 192 Polarization data
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See also:
J/A+A/332/410 : Quasar polarization (Hutsemekers 1998)
J/A+A/340/371 : Quasar polarization (Hutsemekers+ 1998)
J/A+AS/142/451 : Polarization of 47 quasi-stellar objects (Lamy+ 2000)
J/A+A/433/757 : Optical polarization of 203 QSOs (Sluse+, 2005)
Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 29 A29 --- Name Object name (from NED)
32- 33 I2 h RAh Right ascension (J2000)
35- 36 I2 min RAm Right ascension (J2000)
38- 42 F5.2 s RAs Right ascension (J2000)
44 A1 --- DE- Declination sign (J2000)
45- 46 I2 deg DEd Declination (J2000)
48- 49 I2 arcmin DEm Declination (J2000)
51- 54 F4.1 arcsec DEs Declination (J2000)
58- 65 F8.6 --- z Redshift
69 A1 --- Filter [RVWi] Filter
73- 82 A10 "date" Date Date of observation (YYYY-MM-DD)
85- 90 F6.2 % q Normalized Stokes parameter (NSP) q
93- 98 F6.2 % u Normalized Stokes parameter (NSP) u
102-106 F5.2 % Pol Polarization degree
111-114 F4.2 % e_Pol Uncertainty of polarization degree
118-122 F5.2 % p0 Debiased polarization degree
127-129 I3 deg PA ?=999 Polarization position angle
133-135 I3 deg e_PA ?=999 Uncertainty of PA
138-139 A2 --- Remark Remark (1)
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Note (1): Remarks are coded as follows:
C? = polarization measurement possibly contaminated by
interstellar polarization
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Acknowledgements:
Damien Hutsemekers, hutsemekers(at)astro.ulg.ac.be
(End) Patricia Vannier [CDS] 31-Aug-2017