Common Name: S5 1856+73 MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] VLBA 1.4 GHz:
B1950 Name: 1856+737 2 cm VLBA Image map
J2000 Name: J1854+7351
R.A. and Dec. (J2000): 18h54m57.300s
+73d51'19.907"
AGN Class: LSP Quasar
Redshift: 0.46 (1994A&AS..105...67S)
Luminosity Distance: 2553 Mpc ; 5.81 pc/mas
Radio Spectrum: Flat
Gamma-ray Association LAT: N, EGRET: N, TeV: N
Kpc-scale morphology: Core
Jet Speed: Maximum: 285 ± 57 μas/y ; 7.9 ± 1.6 c
Median: 192 ± 35 μas/y ; 5.32 ± 0.96 c
based on 7 moving features
Lister et al. 2021, ApJ,923,30
Separation Versus Time Plot: PNG    PDF
Stacked 15 GHz Stokes I VLBA images:
Natural weight:   PNG PDF FITS
Circular Beam:   PNG PDF FITS
Tapered Beam:   PNG PDF FITS

Stacked 15 GHz Polarization VLBA images:
Method I:   Cumulative GIF, pol PNG, I FITS, P FITS, m FITS, EVPA FITS
Method II:   std EVPA PNG, FITS

Rotation Measure 8-15 GHz Map: | Not available |

Spectral Index 8-15 GHz Map: | Not available |


VLBA 23 GHz:
Kpc-scale: Healey et al. 2007, ApJS 171, 61
23 GHz Image
Kpc Image

Fermi LAT and 15 GHz VLBA Light Curves

Fermi LAT and 15 GHz VLBA Light Curves
VLBA 43 GHz:
Multiepoch Radio Spectrum:
43 GHz Image
Radio Spectrum
Comments: Robopol control 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 team checks and adjusts the flux density scaling of the MOJAVE VLBA data for possible systematics based on near-simultaneous OVRO 40m measurements at 15 GHz. Asterisked entries below denote epochs that have not yet been checked and corrected.
Epoch
(YYYY-MM-DD)
VLBA Code VLBA I
(mJy)
VLBA P
(mJy)
VLBA
P (%)
VLBA
EVPA (deg.)
I Image (Nat. Weight) Visibility
Data
Stokes I Radplot Polarization
Image
Full
Montage
2019-06-29 BL229AY 557 8.0 1.4 111 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2018-04-22 BL229AN 488 2.0 0.4 137 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2018-02-02 BL229AM 425 1.7 0.4 76 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2017-11-18 BL229AL 405 3.5 0.9 111 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2017-06-17 BL229AI 361 1.6 0.4 140 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2017-03-11 BL229AF 320 4.0 1.3 173 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2017-01-03 BL229AD 308 3.0 1.0 88 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
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