Access to Astronomical Catalogues

← Click to display the menu
J/AJ/138/1874    MOJAVE. VI. Kinematic analysis of blazar jets   (Lister+, 2009)

MOJAVE: monitoring of jets in active galactic nuclei with VLBA experiments. VI. Kinematics analysis of a complete sample of blazar jets. Lister M.L., Cohen M.H., Homan D.C., Kadler M., Kellermann K.I., Kovalev Y.Y., Ros E., Savolainen T., Zensus J.A. <Astron. J., 138, 1874-1892 (2009)> =2009AJ....138.1874L
ADC_Keywords: Radio sources ; BL Lac objects ; Active gal. nuclei ; QSOs ; Keywords: BL Lacertae objects: general - galaxies: active - galaxies: jets - radio continuum: galaxies - quasars: general - surveys Abstract: We discuss the jet kinematics of a complete flux-density-limited sample of 135 radio-loud active galactic nuclei (AGNs) resulting from a 13 year program to investigate the structure and evolution of parsec-scale jet phenomena. Our analysis is based on new 2cm Very Long Baseline Array (VLBA) images obtained between 2002 and 2007, but includes our previously published observations made at the same wavelength, and is supplemented by VLBA archive data. In all, we have used 2424 images spanning the years 1994-2007 to study and determine the motions of 526 separate jet features in 127 jets. Description: The data analyzed in this study were presented in Paper V (Lister et al., 2009, Cat. J/AJ/137/3718), and consist of a set of 2424 2cm VLBA observations of the complete flux-density-limited MOJAVE sample of 135 AGNs spanning from 1994 August 31 to 2007 September 6. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file agn.dat 44 135 AGN sample table1.dat 57 12712 Fitted jet components table2.dat 158 526 Jet kinematics
See also: J/A+A/545/A113 : MOJAVE IX. Core shift effects (Pushkarev+, 2012) J/ApJ/722/L7 : Fermi/LAT detected MOJAVE AGNs (Pushkarev+, 2010) J/ApJ/710/764 : Extended radio emission in MOJAVE blazars (Kharb+, 2010) J/AJ/137/3718 : 15GHz monitoring of AGN jets with VLBA (Lister+, 2009) J/ApJ/706/1253 : MOJAVE VII. Blazar jet acceleration (Homan+, 2009) J/ApJS/171/376 : MOJAVE. III. VLA 1.4GHz images (Cooper+, 2007) J/AJ/131/1262 : AGN jets circular polarization images at 15GHz (Homan+, 2006) J/AJ/130/1389 : Linear polarization of AGN jets at 15GHz (Lister+, 2005) J/AJ/130/1418 : AGN jet kinematics (Jorstad+, 2005) J/ApJ/609/539 : Kinematics of parsec-scale radio jets (Kellermann+, 2004) Byte-by-byte Description of file: agn.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name IAU name (HHMM+DDMM, B1950) 10- 11 I2 h RAh SIMBAD hour of right ascension (J2000) 13- 14 I2 min RAm SIMBAD minute of right ascension (J2000) 16- 19 F4.1 s RAs SIMBAD second of right ascension (J2000) 21 A1 --- DE- SIMBAD sign of declination (J2000) 22- 23 I2 deg DEd SIMBAD degree of declination (J2000) 25- 26 I2 arcmin DEm SIMBAD arcminute of declination (J2000) 28- 29 I2 arcsec DEs SIMBAD arcsecond of declination (J2000) 31- 44 A14 --- SName SIMBAD name
Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name IAU name (HHMM+DDMM, B1950) 10- 11 I2 --- ID Component name; zero is core component 13 A1 --- f_ID [a] ID component not used in kinematic fits 15- 24 A10 "YYYY/MM/DD" Date Date of the observation 26- 31 F6.3 Jy I ? Flux density at 2cm (15GHz) 33- 37 F5.2 mas r ? Position offset (1) 39- 43 F5.1 deg PA ? Position angle (2) 45- 48 F4.2 mas aMaj ? Fitted Gaussian FWHM of major axis 50- 53 F4.2 --- b/a ? Fitted Gaussian axial ratio 55- 57 I3 deg MajPA ? Fitted Gaussian major axis position angle
Note (1): From the core component (or map center for the core component entries). Note (2): with respect to the core components (or map center for the core component entries).
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 8 A8 --- Name IAU name (HHMM+DDMM, B1950) 10- 11 I2 --- ID Component name; zero is core component 13- 14 I2 --- N Number of fitted epochs 16- 19 I4 mJy <S> Mean flux density at 2cm 21- 24 F4.1 mas <R> Mean distance from core component 26 A1 --- n_<R> [d] Component unusually slow (1) 28- 32 F5.1 deg <PA> Mean position angle with respect to the core component 34- 37 I4 uas/yr mu Magnitude of fitted angular velocity vector 39- 41 I3 uas/yr e_mu Uncertainty in mu 43 A1 --- n_mu [a] Component shows acceleration (1) 45- 51 F7.4 --- beta ? Fitted speed in units of the speed of light 53- 59 F7.4 --- e_beta ? Uncertainty in beta 61- 66 F6.2 deg phi Position angle of velocity vector φ 68- 73 F6.2 deg e_phi Uncertainty in phi 75- 76 A2 --- n_phi [c? ] Component shows inward motion (1) 78- 83 F6.2 deg Off Offset between mean position angle and velocity vector position angle 85- 90 F6.2 deg e_Off Uncertainty in Off 92- 93 A2 --- n_Off [b? ] Component shows non-radial motion (1) 95-101 F7.2 uas/yr2 ? Acceleration parallel to velocity direction 103-108 F6.2 uas/yr2 ? Uncertainty in 110-116 F7.2 uas/yr2 ? Acceleration perpendicular to velocity direction 118-123 F6.2 uas/yr2 ? Uncertainty in 125-132 F8.3 yr Tej ? Fitted ejection date 134-140 F7.3 yr e_Tej ? Uncertainty in Tej 142-148 F7.2 yr Tmid Date of reference; middle epoch used for fit 150-153 F4.2 mas e_RA Right Ascension error of individual epoch positions 155-158 F4.2 mas e_DE Declination error of individual epoch positions
Note (1): Flag as follows: a = Component shows significant acceleration; b = Component shows significant non-radial motion; c = Component shows significant inward motion; d = Component is unusually slow (low pattern speed) (see Section 3.5).
History: From electronic version of the journal References: Lister et al., Paper I 2005AJ....130.1389L Cat. J/AJ/130/1389 Homan et al., Paper II 2006AJ....131.1262H Cat. J/AJ/131/1262 Cooper et al., Paper III 2007ApJS..171..376C Cat. J/ApJS/171/376 Cara et al., Paper IV 2008ApJ...674..111C Lister et al., Paper V 2009AJ....137.3718L Cat. J/AJ/137/3718 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 Hovatta et al., Paper XI 2014AJ....147..143H Cat. J/AJ/147/143
(End) Greg Schwarz [AAS], Emmanuelle Perret [CDS] 28-Dec-2011
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

catalogue service