Common Name: 4C +04.42 MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] VLBA 1.4 GHz: University College Cork Program
B1950 Name: 1219+044 2 cm VLBA Image map
J2000 Name: J1222+0413
R.A. and Dec. (J2000): 12h22m22.550s
+4d13'15.776"
AGN Class: LSP NLSY1
Redshift: 0.966 (2017A&A...597A..79P)
Luminosity Distance: 6355 Mpc ; 7.97 pc/mas
Radio Spectrum: Flat
Gamma-ray Association LAT: Y, EGRET: N, TeV: N
Kpc-scale morphology: Two-sided
Jet Speed: Maximum: 13 5 μas/y ; 0.64 0.24 c
Median: N/A ;
based on 2 moving features
Lister et al. 2021, ApJ, in press
Separation Versus Time Plot: PNG    PS
Stacked epoch 15 GHz VLBA images:
Uniform weight: [PS]   [GIF]
Natural weight: [PS]   [GIF]
Circular Beam : [PS]   [GIF]
Tapered Beam: [PS]   [GIF]
Pushkarev et al. 2017 :   FITS

Rotation Measure Map: | Not available |

Spectral Index Map: | 2006_05_24 |


Multifrequency MOJAVE VLBA Data:

Epoch
8.1 GHz
8.4 GHz
12.1 GHz
2006-05-24
uvf  
uvf  
uvf  

VLBA 23 GHz:
Kpc-scale: Kharb, Lister, and Cooper 2010, ApJ 710, 764
23 GHz Image
Kpc Image

Fermi LAT and 15 GHz VLBA Light Curves

Fermi LAT and 15 GHz VLBA Light Curves
VLBA 43 GHz: Cheng et al. 2020
Multiepoch Radio Spectrum:
43 GHz Image
Radio Spectrum
Comments: NLSY1 (Yao 2015), MOJAVE 1.5QC sample

If you use these data in a publication, we ask that you please contact us so we can add a link to the list of external MOJAVE publications, and ask that you cite Lister et al., 2018, ApJS, 234, 12 and include the following acknowledgment: "This research has made use of data from the MOJAVE database that is maintained by the MOJAVE team (Lister et al. 2018)"

Important Note: The MOJAVE team, working with the OVRO 40m AGN monitoring group, has discovered a systematic error in the flux densities of all VLBA 15 GHz observations taking place after a date that lies between 2019 April 16 and 2019 May 16. All observations after that date have correlated flux densities that are between 10% and 20% too low. The MOJAVE team and NRAO are currently investigating the issue.

Asterisked entries below denote epochs that have not yet been corrected for the VLBA flux density scaling problem.
Epoch
(Y-M-D)
VLBA Code VLBA I
(mJy)
VLBA P
(mJy)
VLBA
P (%)
VLBA
EVPA (deg.)
I Image (Nat. Weight) Tapered I Image Tapered I Image (Widefield) Visibility
Data
Stokes I Radplot Pol.
Image
2020-12-24 * BL229BL 690 11 1.6 101 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2018-12-16 BL229AT 545 6.5 1.2 32 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2015-11-25 BL193AY 667 24 3.6 75 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2010-10-25 BL149CT 930 5.8 0.6 8 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2010-09-01 BG204B 1094 14 1.2 52 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS
2009-10-27 BL149CC 1026 4.9 0.5 49 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2008-11-19 BL149BE 1121 24 2.1 48 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2007-06-03 BL149AA 918 14 1.5 60 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2006-05-24 BL137E 1178 2.7 0.2 10 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2005-07-24 BL123J 795 5.6 0.7 108 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2005-03-23 BL123D 770 13 1.6 102 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2003-06-15 BL111I 853 7.0 0.8 0 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
2002-06-15 BL111B 918 1.6 0.2 173 FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS PNG   PS
1996-05-02 BE10B 597 no data FITS   PNG   PS FITS   PNG   PS PNG   PS uvf   PNG   PS
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