OJ 451 multiwavelength SED

Also known as 1FGL J0834.4+4221, 1FLAT J083354.0+422401, 2FGL J0834.3+4221, 3FGL J0834.1+4223, 5BZQ J0833+4224, B30830+425, BZQ J0833+4224, CRATES J083354+422402, ROXA J083357.0+472652.9, S40830+42, SDSS J083353.88+422401.8.

• Class: FSRQ
• Redshift: z = 0.249
• Position (ICRS): RA 128.47452°, Dec 42.40051°
• Data: 2,253 points (6 upper limits) from 34 catalogues
• Dated data: 2010–2024 (MJD 55232–60449)
• Undated catalogue values: 77
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 92 UVOT and 8 XRT
• Largest catalogues (points): ASAS-SN (1,241), NEOWISE (504), WISEME (156), ZTF (109), PanSTARRS-LC (84)

Get the data

• The SED as CSV from the MMDC SED API (docs.mmdc.am).
• In Python, with astro-mmdc:

  from astro_mmdc import MMDC
  sed = MMDC().sed.get(ra=128.47452, dec=42.40051, name="OJ 451")

• The interactive SED plot, with time filtering and modeling (needs JavaScript).

Other FSRQs

• 4C +39.23
• S4 0805+41
• B3 0803+452
• OJ 508
• S4 0917+44
• 4C +38.28

How to cite

Sahakyan, N., Vardanyan, V., Giommi, P., et al. 2024, AJ, 168, 289, doi:10.3847/1538-3881/ad8231 (arXiv:2410.01207).