Common Name: | W Comae | MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] | VLBA 1.4 GHz: 2017MNRAS.467...83K |
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B1950 Name: | 1219+285 | ![]() |
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J2000 Name: | J1221+2813 | ||||||||||||||
R.A. and Dec. (J2000): | 12h21m31.691s +28d13'58.500" |
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AGN Class: | ISP BL Lac | ||||||||||||||
Redshift: | 0.102 (2017ApJ...837..144P) | Luminosity Distance: | 465 Mpc ; 1.85 pc/mas | ||||||||||||
Radio Spectrum: | Flat | ||||||||||||||
Gamma-ray Association | LAT: Y, EGRET: P, TeV: Y | ||||||||||||||
Kpc-scale morphology: | One-sided | ||||||||||||||
Jet Speed: | Maximum: 1230 ± 84 μas/y ; 8.20 ± 0.56 c Median: 830 ± 48 μas/y ; 5.53 ± 0.32 c based on 10 moving features Lister et al. 2021, ApJ,923,30 |
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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 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_02_12 | 2006_11_10 Multifrequency MOJAVE VLBA Data:
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VLBA 23 GHz: |
Kpc-scale: Perlman and Stocke 1994, AJ 108,56 | |||||||||||||
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Fermi LAT and 15 GHz VLBA Light Curves![]() |
VLBA 43 GHz: Jorstad et al. 2017 |
Multiepoch Radio Spectrum: |
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Comments: | LAT 1FM source;PS94 also have VLA image |
Epoch (YYYY-MM-DD) | VLBA Code | VLBA I (mJy) |
VLBA P (mJy) |
VLBA P (%) |
VLBA EVPA (deg.) |
Stokes I Image (Nat. weight) |
Visibility Data |
Stokes I Radplot | Polarization Image (Nat. weight) |
Full Montage |
2013-07-30 | BL178BG | 515 | 2.6 | 0.5 | 48 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2012-04-29 | BL178AJ | 337 | 4.2 | 1.2 | 13 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2011-04-11 | BL149DF | 382 | 2.3 | 0.6 | 29 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2010-09-17 | BL149CP | 269 | 4.0 | 1.5 | 4 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2010-09-01 | BG204B | 276 | 3.8 | 1.4 | 16 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2009-12-17 | BL149CE | 342 | 6.5 | 1.9 | 26 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2009-05-28 | BL149BL | 328 | 6.6 | 2.0 | 22 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2009-05-14 | BK150J | 357 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2008-08-25 | BL149BB | 331 | 3.8 | 1.1 | 54 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2008-07-30 | BL149AL | 352 | 3.3 | 0.9 | 56 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2008-07-17 | BL149AK | 337 | 3.1 | 0.9 | 51 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2007-04-30 | BK134C | 356 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2006-11-10 | BL137K | 328 | < 1.8 | < 5.5 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2006-02-12 | BL137A | 329 | < 1.4 | < 4.3 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2005-06-18 | BJ036O | 301 | < 1.4 | < 4.6 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2005-05-04 | BJ036N | 307 | < 2.1 | < 6.7 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2005-03-09 | BJ036M | 262 | < 1.5 | < 5.9 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2004-12-10 | BJ036L | 343 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2004-09-03 | BJ036K | 491 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2004-06-19 | BJ036J | 369 | 2.6 | 0.7 | 4 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2003-09-27 | BJ036D | 323 | 10.0 | 3.1 | 21 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2003-08-22 | BG137B | 319 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2003-03-05 | BG128B | 329 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2002-12-14 | BA064F | 349 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2002-10-20 | BJ036B | 377 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2001-03-04 | BK068E | 459 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 2001-01-07 | BJ036A | 502 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 1999-05-21 | BK068A | 574 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 1998-03-07 | BK052B | 573 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 1997-04-06 | BM049C | 536 | 15 | 2.8 | 62 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 1996-10-27 | BK037D | 361 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 1996-05-16 | BK037B | 541 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 1995-12-15 | BK37A | 457 | no data | FITS PNG PDF | UVF | PNG PDF | PNG | 1995-04-07 | BK016 | 432 | no data | FITS PNG PDF | UVF | PNG PDF | PNG |
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