Common Name: | 4C +48.41 | MOJAVE 15 GHz [Total intensity movie]   | [Polariz. movie] | Kpc-scale: Xu et al. 1995, ApJS 99, 297 |
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, submitted |
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Separation Versus Time Plot: | PNG PS | ||
Stacked epoch 15 GHz VLBA
images: Uniform weight: [PS]   [GIF] Natural weight: [PS]   [GIF] Circular Beam : [PS]   [GIF] Pushkarev et al. 2017 :   FITS Rotation Measure Map: | Not available | Spectral Index Map: | Not available | |
VLBA 1.4 GHz: |
Multiepoch Radio Spectrum: |
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Comments: | LAT flaring, ATEL ASPJ165824p481300, uncertain association according to Julie |
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 |
2012-12-10 | BL178AV | 511 | 4.3 | 0.8 | 162 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2012-04-29 | BL178AJ | 352 | 1.7 | 0.5 | 1 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2011-06-24 | BL149DL | 608 | 7.6 | 1.2 | 179 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2010-11-29 | BL149CY | 600 | 21 | 3.5 | 134 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2010-08-06 | BL149CM | 462 | 8.9 | 1.9 | 122 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS |
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