| Common Name: | VIPS 0926 | MOJAVE 15 GHz [Total intensity movie] | [Polariz. movie] | VLBA 1.4 GHz: |
| B1950 Name: | 1557+565 |  |
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| J2000 Name: | J1558+5625 | ||
| R.A. and Dec. (J2000): | 15h58m48.289s +56d25'14.119" |
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| AGN Class: | ISP BL Lac | ||
| Redshift: | Unknown | Luminosity Distance: | Unknown |
| Radio Spectrum: | Flat | ||
| Gamma-ray Association | LAT: Y, EGRET: N, TeV: N | ||
| Kpc-scale morphology: | Core | ||
| Jet Speed: | Maximum: 114 ± 24 μas/y ; Median: N/A ; based on 4 moving features Lister et al. 2019, ApJ,874,43 |
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| Separation Versus Time Plot: | PNG PS | ||
| Stacked epoch 15 GHz VLBA
images: Uniform weight: [PDF] [GIF] Natural weight: [PDF] [GIF] Circular Beam : [PDF] [GIF] Tapered Beam: [PDF] [GIF] Rotation Measure Map: | Not available | Spectral Index Map: | Not available | |
VLBA 23 GHz: |
Kpc-scale: Healey et al. 2007, ApJS 171, 61 | |
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Fermi LAT and 15 GHz VLBA Light Curves |
VLBA 43 GHz: |
Multiepoch Radio Spectrum: |
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| Comments: | NED z=0.3 is incorrect; 1.049 < z < 1.67 from Shaw et al. 2013 | ||
![[GIF]](../stackedimages/1557+565.u.stacked.icu.gif){kind=link}
![[GIF]](../stackedimages/1557+565.u.stacked.icd.gif){kind=link}
![[GIF]](../stackedimages/1557+565.u.stacked.icc.gif){kind=link}
![[GIF]](../stackedimages/1557+565.u.stacked.ict.gif){kind=link}
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 group, discovered a systematic error in the flux densities of all VLBA 15 GHz observations taking place after a date that lies between 2019 April 16 and 2019 May 16. Observations after that date have correlated flux densities that are between 10% and 20% too low. We have adjusted the flux density scaling of the MOJAVE VLBA data up to 2022 Jan 3 based on near-simultaneous OVRO 40m measurements at 15 GHz.
Asterisked entries below denote epochs that have not yet been corrected for the VLBA flux density scaling problem.
Important Note: The MOJAVE team, working with the OVRO 40m AGN monitoring group, discovered a systematic error in the flux densities of all VLBA 15 GHz observations taking place after a date that lies between 2019 April 16 and 2019 May 16. Observations after that date have correlated flux densities that are between 10% and 20% too low. We have adjusted the flux density scaling of the MOJAVE VLBA data up to 2022 Jan 3 based on near-simultaneous OVRO 40m measurements at 15 GHz.
Asterisked entries below denote epochs that have not yet been corrected for the VLBA flux density scaling problem.
| 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 |
2016-06-16 | BL193BG | 168 | 4.6 | 2.7 | 136 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2015-12-19 | BL193AZ | 172 | 2.4 | 1.4 | 138 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2015-06-16 | BL193AT | 183 | 1.7 | 0.9 | 129 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2014-09-01 | BL193AN | 199 | 2.9 | 1.5 | 103 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2014-03-30 | BL193AH | 192 | 4.8 | 2.5 | 154 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS |
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