| Common Name: | TXS 0831+557 | MOJAVE 15 GHz | | VLBA 1.4 GHz: NRAO Archive |
| B1950 Name: | 0831+557 |  |
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| J2000 Name: | J0834+5534 | ||
| R.A. and Dec. (J2000): | 8h34m54.904s +55d34'21.070" |
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| AGN Class: | NLSY1 | ||
| Redshift: | 0.241536 (2020ApJS..249....3A) | Luminosity Distance: | 1201 Mpc ; 3.78 pc/mas |
| Radio Spectrum: | Steep | ||
| Gamma-ray Association | LAT: N, EGRET: N, TeV: N | ||
| Kpc-scale morphology: | Two-sided | ||
| Jet Speed: | Maximum: Unknown ; Median: Unknown ; |
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| Separation Versus Time Plot: | Not available | ||
| Stacked 15 GHz Stokes I VLBA images: Natural weight: Not Available Circular Beam: Not Available Tapered Beam: Not Available Stacked 15 GHz Polarization VLBA images: Rotation Measure 8-15 GHz Map: | Not available | Spectral Index 8-15 GHz Map: | Not available | |
VLBA 23 GHz: |
Kpc-scale: Caltech-Jodrell Flat-Spectrum Survey | |
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| Fermi LAT and 15 GHz VLBA Light Curves |
VLBA 43 GHz: |
Multiepoch Radio Spectrum: |
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| Comments: | NLSY1 from Rakshit 2017; dropped from MOJAVE since too resolved | ||
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.
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 |
2002-06-15 | BL111B | 970 | 5.5 | 0.6 | 55 | FITS PNG PDF | UVF | PNG PDF | p:PNG p:PDF f:PNG f:PDF | PNG | 1999-01-02 | BG077D | 683 | no data | FITS PNG PDF | UVF | PNG PDF | PNG |
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