Common Name: | 4C +48.41 | MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] | VLBA 1.4 GHz: |
B1950 Name: | 1656+482 | ![]() |
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J2000 Name: | J1657+4808 | ||
R.A. and Dec. (J2000): | 16h57m46.879s +48d8'33.041" |
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AGN Class: | LSP BL Lac | ||
Redshift: | 1.669 (Ackermann et al. 2011, ApJ, 743, 171) | Luminosity Distance: | 12575 Mpc ; 8.56 pc/mas |
Radio Spectrum: | Flat | ||
Gamma-ray Association | LAT: Y, EGRET: N, TeV: N | ||
Kpc-scale morphology: | One-sided | ||
Jet Speed: | Maximum: 259 ± 29 μas/y ; 19.3 ± 2.2 c Median: N/A ; based on 4 moving features Lister et al. 2019, ApJ,874,43 |
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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: | Not available | |
VLBA 23 GHz: |
Kpc-scale: Xu et al. 1995, ApJS 99, 297 | |
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Fermi LAT and 15 GHz VLBA Light Curves![]() |
VLBA 43 GHz: |
Multiepoch Radio Spectrum: |
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Comments: | LAT flaring, ATEL ASPJ165824p481300, uncertain association according to Julie |
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 |
2012-12-10 | BL178AV | 498 | 4.4 | 0.9 | 159 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2012-04-29 | BL178AJ | 340 | 0.7 | 0.2 | 144 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2011-06-24 | BL149DL | 589 | 9.7 | 1.6 | 172 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2010-11-29 | BL149CY | 581 | 23 | 3.9 | 135 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 2010-08-06 | BL149CM | 452 | 6.3 | 1.4 | 124 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG |
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