B2 2234+28A multiwavelength SED

Also known as 1FGL J2236.2+2828, 1FLAT J223622.5+282857, 1Jy 2234+282, 2FGL J2236.4+2828, 3FGL J2236.3+2829, 4FGL J2236.3+2828, 5BZQ J2236+2828, BZQ J2236+2828, CRATES J223620+282856, TXS 2234+282, WMAP57, WMAP5 J1850+2823.

• Class: FSRQ
• Redshift: z = 0.790
• Position (ICRS): RA 339.09363°, Dec 28.48261°
• Data: 5,927 points (5 upper limits) from 39 catalogues
• Dated data: 2008–2025 (MJD 54706–60969)
• Undated catalogue values: 140
• Frequency range of detections: log ν = 8.2–25.5 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 38 UVOT and 18 XRT
• Largest catalogues (points): ZTF (3,586), ASAS-SN (1,690), MMDCGR (275), WISEME (93), PanSTARRS-LC (58)

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=339.09363, dec=28.48261, name="B2 2234+28A")

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

Other FSRQs

• PKS 2223+21
• PKS 2246+208
• B2 2308+34
• 4C +27.50
• 3C 454.3
• PKS 2201+171

How to cite

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