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J/AJ/130/1389     Linear polarization of AGN jets at 15GHz     (Lister+, 2005)

MOJAVE: Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments. I. First-epoch 15GHz linear polarization images. Lister M.L., Homan D.C. <Astron. J., 130, 1389-1417 (2005)> =2005AJ....130.1389L
ADC_Keywords: Radio sources ; BL Lac objects ; Active gal. nuclei ; QSOs ; Polarization Keywords: BL Lacertae objects: general - galaxies: active - galaxies: jets - polarization - quasars: general - radio continuum: galaxies Abstract: We present first-epoch, milliarcsecond-scale linear polarization images at 15GHz of 133 jets associated with active galactic nuclei (AGNs) from the MOJAVE (Monitoring of Jets in Active Galactic Nuclei with VLBA Experiments) survey. MOJAVE is a long-term observational program to study the structure and evolution of relativistic outflows in AGNs. The sample consists of all known AGNs with Galactic latitude |b|>2.5°, J2000.0 declination greater than -20° and correlated 15GHz Very Long Baseline Array (VLBA) flux density exceeding 1.5Jy (2Jy for sources below the celestial equator) at any epoch during the period 1994-2003. Description: The first epoch of MOJAVE observations took place on 2002 May 31 using the VLBA. In this paper we present data obtained from this and 10 subsequent 24hr MOJAVE sessions, up to and including 2004 February 11. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 79 133 The complete MOJAVE sample table3.dat 69 133 Summary of 15GHz image parameters table4.dat 59 133 Core component and integrated jet properties table5.dat 50 434 Jet component properties
See also: VII/235 : Quasars and Active Galactic Nuclei (11th Ed.) (Veron+, 2003) J/A+A/386/97 : Parkes quarter-Jansky flat-spectrum sample (Jackson+, 2002) J/ApJ/609/539 : Kinematics of parsec-scale radio jets (Kellermann+, 2004) VII/6 : Polarization of Extragalactic Radiosources (Eichendorf+ 1980) J/A+A/332/410 : Quasar polarization (Hutsemekers 1998) J/A+A/340/371 : Quasar polarization (Hutsemekers+ 1998) J/A+AS/39/379 : Linear Polarization of radio sources (Tabara+ 1980) J/A+AS/135/571 : Extragalactic radio sources polarization (Zukowski+, 1999) J/AJ/131/1262 : AGN jets circular polarization images at 15GHz (Homan+, 2006) J/AJ/131/1262 : 15GHz circular polarization images of AGN jets (Homan+, 2007) J/ApJS/171/376 : MOJAVE. III. VLA 1.4GHz images (Cooper+, 2007) J/AJ/137/3718 : 15GHz monitoring of AGN jets with VLBA (Lister+, 2009) J/AJ/138/1874 : MOJAVE. VI. Kinematic analysis of blazar jets (Lister+, 2009) J/ApJ/706/1253 : MOJAVE VII. Blazar jet acceleration (Homan+, 2009) J/ApJ/710/764 : Extended radio emission in MOJAVE blazars (Kharb+, 2010) J/ApJ/722/L7 : Fermi/LAT detected MOJAVE AGNs (Pushkarev+, 2010) J/A+A/545/A113 : MOJAVE IX. Core shift effects (Pushkarev+, 2012) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name The B1950.0 IAU name 10- 18 A9 --- OName Other name 20- 21 I2 h RAh Hour of Right Ascension (J2000) 23- 24 I2 min RAm Minute of Right Ascension (J2000) 26- 32 F7.4 s RAs Second of Right Ascension (J2000) 34 A1 --- DE- Sign of the Declination (J2000) 35- 36 I2 deg DEd Degree of Declination (J2000) 38- 39 I2 arcmin DEm Arcminute of Declination (J2000) 41- 47 F7.4 arcsec DEs Arcsecond of Declination (J2000) 49- 54 F6.4 --- z ? Redshift (1) 56 A1 --- Cl Veron-Cetty & Veron (2003, Cat. <VII/235>) optical class (2) 58 A1 --- f_Cl Flag on OClass (3) 60- 63 F4.1 mag Vmag ? Veron-Cetty & Veron (2003, Cat. VII/235) V band magnitude 65- 70 A6 --- Radio Radio spectrum (4) 72- 76 F5.2 Jy S15GHz The 15GHz VLBA flux density (5) 77 A1 --- f_S15GHz [*] inferred from single-dish observations (see section 2.1) 79 A1 --- E-ID [YP] Highly probable (Y) or probable (P) γ-ray identification (7)
Note (1): All redshifts are from Veron-Cetty & Veron (2003, Cat. VII/235) except 0742+103 (Best et al. 2003MNRAS.346.1021B) and 0808+019 (Jackson et al. 2002, Cat. J/A+A/386/97). Note (2): Veron-Cetty & Veron (2003, Cat. VII/235) optical class, defined as follows: Q = quasar; B = BL Lac object; G = active galaxy; U = unidentified. Note (3): Flag on OClass, defined as follows: a = Source classified as a quasar in the Veron-Cetty & Veron (2003, Cat. VII/235) catalog. b = Source classified as a possible BL Lac object in the Veron-Cetty & Veron (2003, Cat. VII/235) catalog. c = Source classified as a galaxy in the Veron-Cetty & Veron (2003, Cat. VII/235) catalog. Note (4): Description of radio spectrum from Kellermann et al. (2004, Cat. J/ApJ/609/539) Note (5): Maximum 2cm total cleaned VLBA flux density at any epoch during 1994-2003. Note (7): EGRET gamma-ray source identification according to Mattox et al. (2001, Cat. J/ApJS/135/155) and Sowards-Emmerd et al. (2003, Cat. J/ApJ/590/109 ; 2004, Cat. J/ApJ/609/564). Y = highly probable identification; P = probable identification.
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name The B1950.0 IAU name 10- 19 A10 "YYYY/MM/DD" ObsDate Date of the VLBA observation 21- 24 F4.2 mas MajAxis The FWHM major axis of the restoring beam 26- 29 F4.2 mas MinAxis The FWHM minor axis of the restoring beam 31- 33 I3 deg PA [-87/47] Position angle of major axis 35- 39 F5.2 Jy STot Total I flux density at 15GHz 41- 45 F5.2 Jy SPeak Peak flux density at 15GHz (Jy/beam) 47 A1 --- l_PTot [<] Upper limit flag on PTot 48- 51 I4 mJy PTot Total linearly polarized flux density 53- 55 I3 deg EVPA ? Integrated electric vector position angle 57- 60 F4.1 mJy IBase Lowest I contour in image (mJy/beam) 62- 65 F4.1 mJy PBase Lowest P contour in image (mJy/beam) 67- 69 F3.1 pc/mas Scale ? Linear scale
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name The B1950.0 IAU name 10- 13 F4.2 mas Offset ? Core position offset from the map center 15- 17 I3 deg MCPA ? Core position angle with respect to the map center 19- 22 F4.2 Jy Icore Fitted Gaussian core flux density at 15 GHz 24- 27 F4.2 mas Acore ? The FWHM major axis of fitted core Gaussian 29- 32 F4.2 --- rcore ? Axial ratio of fitted core Gaussian 34- 36 I3 deg FCPA ? Major axis position angle of fitted core Gaussian 38 A1 --- l_Tb [>] Lower limit flag on Tb 39- 42 F4.1 [K] Tb Log of core brightness temperature 44 A1 --- l_mcore [<] Upper limit flag on mcore 45- 49 F5.2 % mcore Fractional polarization at core position 51- 53 I3 deg EVPAc ? Electric vector position angle at core position 55 A1 --- l_mjet [<] Upper limit flag on mjet 56- 59 F4.1 % mjet Integrated fractional polarization of jet
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name The B1950.0 IAU name 10- 14 F5.2 mas Dist Distance from fitted core position 16- 18 I3 deg CPPA Position angle of component with respect to core position 20- 24 F5.2 mas MajAxis ? Major axis of fitted Gaussian 26- 29 F4.2 --- ratio ? Axial ratio of fitted Gaussian 31- 33 I3 deg FGPA ? Position angle of major axis of fitted Gaussian 35- 39 I5 mJy Sfit Fitted component flux density at 15 GHz 41 A1 --- l_m [<] Upper limit flag on m 42- 46 F5.2 % m ? Fractional polarization at component position 48- 50 I3 deg EVPA ? Electric vector position angle at component position
History: From electronic version of the journal References: Homan & Lister, Paper II 2006AJ....131.1262H, Cat. J/AJ/131/1262 Cooper et al., Paper III 2007ApJS..171..376C, Cat. J/ApJS/171/376 Cara & Lister, Paper IV 2008ApJ...674..111C Lister et al., Paper V 2009AJ....137.3718L, Cat. J/AJ/137/3718 Lister et al., Paper VI 2009AJ....138.1874L, Cat. J/AJ/138/1874 Homan et al., Paper VII 2009ApJ...706.1253H, Cat. J/ApJ/706/1253 Hovatta et al., Paper VIII 2012AJ....144..105H, Cat. J/AJ/144/105 Pushkarev et al., Paper IX 2012A&A...545A.113P, Cat. J/A+A/545/A113 Lister et al., Paper X 2013AJ....146..120L, Cat. J/AJ/146/120
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 24-Feb-2006
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