| Common Name: | S4 1250+53 | MOJAVE 15 GHz [Total intensity movie] | [Polariz. movie] | VLBA 1.4 GHz: NRAO Archive: BL209A |
| B1950 Name: | 1250+532 |  |
 |
| J2000 Name: | J1253+5301 | ||
| R.A. and Dec. (J2000): | 12h53m11.921s +53d1'11.737" |
||
| 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: | One-sided | ||
| Jet Speed: | Maximum: 171 ± 36 μas/y ; Median: N/A ; based on 6 moving features Lister et al. 2021, ApJ,923,30 |
||
| 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: Taylor et al. 1996, ApJS 107, 37 | |
 |
 |
||
Fermi LAT and 15 GHz VLBA Light Curves |
VLBA 43 GHz: |
Multiepoch Radio Spectrum: |
|
|---|---|---|---|
|
 |
||
| Comments: | LAT2FM source; was a 1FM candidate; NED z=0.445 is tentative photoz; Shaw 2013 gets z > 0.663 | ||
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.
| Home | Science | AGN Samples | Data Archive | Status | Publications | Movies | RM Maps | α Maps | People | Outreach |