Common Name: NGC 6251 MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] VLBA 1.4 GHz: NRAO Archive
B1950 Name: 1637+826 2 cm VLBA Image map
J2000 Name: J1632+8232
R.A. and Dec. (J2000): 16h32m31.970s
+82d32'16.400"
AGN Class: LSP G
Redshift: 0.024 (2013ARA&A..51..511K)
Luminosity Distance: 104 Mpc ; 0.48 pc/mas
Radio Spectrum: Flat
Gamma-ray Association LAT: Y, EGRET: Y, TeV: N
Kpc-scale morphology: Two-sided
Jet Speed: Maximum: 92 ± 4 μas/y ; 0.1469 ± 0.0065 c
Median: 53 ± 4 μas/y ; 0.0846 ± 0.0069 c
based on 7 moving features
Lister et al. 2019, ApJ,874,43
Separation Versus Time Plot: PNG    PDF
Stacked 15 GHz Stokes I VLBA images:
Uniform weight:   PNG PDF
Natural weight:   PNG PDF
Circular Beam:   PNG PDF
Tapered Beam:   PNG PDF
Stacking for 1994-2015:   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: | 2006_03_09 |


Multifrequency MOJAVE VLBA Data:

Epoch
8.1 GHz
8.4 GHz
12.1 GHz
2006-03-09
uvf  FITS  PNG  PDF 
uvf  FITS  PNG  PDF 
uvf  FITS  PNG  PDF 

VLBA 23 GHz:
Kpc-scale: Perley, Bridle and Willis 1984, ApJS 54,291
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: Low-luminosity MOJAVE-2 source; Sy 2;intermediate FRI/II

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
2013-08-12 BL178BH 634 0.8 0.1 27 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2012-09-02 BL178AO 639 1.4 0.2 17 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2010-07-12 BL149CL 804 1.4 0.2 146 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2009-06-03 BL149BM 809 2.7 0.3 62 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2008-11-26 BL149BF 812 0.4 0.05 108 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2008-07-17 BL149AK 826 2.0 0.2 55 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-08-16 BL149AF 847 2.4 0.3 102 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-06-03 BL149AA 869 2.4 0.3 41 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2007-01-06 BL137R 809 1.6 0.2 79 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2006-03-09 BL137B 859 3.2 0.4 112 FITS   PNG   PDF UVF PNG   PDF p:PNG  p:PDF   f:PNG  f:PDF PNG
2005-02-16 BB199D 603 no data FITS   PNG   PDF UVF PNG   PDF
2001-02-28 BS089 605 no data FITS   PNG   PDF UVF PNG   PDF
2000-05-30 BJ033B 626 no data FITS   PNG   PDF UVF PNG   PDF
1998-06-02 BT036 587 no data FITS   PNG   PDF UVF PNG   PDF
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