| Common Name: | GB6 J0307+4915 | MOJAVE 15 GHz [Total intensity movie] | [Polariz. movie] | VLBA 1.4 GHz: |
| B1950 Name: | 0303+490 |  |
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| J2000 Name: | J0307+4915 | ||
| R.A. and Dec. (J2000): | 3h7m27.035s +49d15'9.753" |
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| AGN Class: | LSP BL Lac | ||
| Redshift: | Unknown | Luminosity Distance: | Unknown |
| Radio Spectrum: | Flat | ||
| Gamma-ray Association | LAT: Y, EGRET: N, TeV: N | ||
| Kpc-scale morphology: | Unknown | ||
| Jet Speed: | Maximum: 51 ± 21 μas/y ; Median: N/A ; based on 1 moving feature Lister et al. 2021, ApJ,923,30 |
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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: | |
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Fermi LAT and 15 GHz VLBA Light Curves |
VLBA 43 GHz: |
Multiepoch Radio Spectrum: |
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| Comments: | 2FHL association; featureless spectrum in 2016AJ....151...95A | ||
![[GIF]](../stackedimages/0303+490.u.stacked.icu.gif){kind=link}
![[GIF]](../stackedimages/0303+490.u.stacked.icd.gif){kind=link}
![[GIF]](../stackedimages/0303+490.u.stacked.icc.gif){kind=link}
![[GIF]](../stackedimages/0303+490.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 |
2020-08-30 | BL229BI | 256 | 4.5 | 1.8 | 67 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2020-06-13 | BL229BF | 264 | 12 | 4.4 | 63 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2019-07-19 | BL229AZ | 259 | 5.8 | 2.2 | 56 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2018-11-11 | BL229AS | 156 | 3.2 | 2.1 | 64 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2018-02-02 | BL229AM | 207 | 1.0 | 0.5 | 143 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2017-05-25 | BL229AH | 262 | 9.5 | 3.6 | 86 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2017-03-11 | BL229AF | 274 | 6.2 | 2.3 | 64 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS | 2017-01-03 | BL229AD | 218 | < 0.4 | < 1.8 | FITS PNG PS | FITS PNG PS | PNG PS | uvf | PNG PS | PNG PS |
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