B2 0202+31 multiwavelength SED

Also known as 1FGL J0205.3+3217, 1Jy 0202+319, 1OUNYU J020505+3212.5, 2FGL J0205.4+3211, 3FGL J0204.8+3212, 5BZQ J0205+3212, BZQ J0205+3212, CRATES J020504+321229, DW0202+31, TXS 0202+319, WMAP5 J1902+3153, WMAP85.

• Class: FSRQ
• Redshift: z = 1.466
• Position (ICRS): RA 31.27052°, Dec 32.20836°
• Data: 3,748 points (27 upper limits) from 37 catalogues
• Dated data: 2006–2024 (MJD 53910–60609)
• Undated catalogue values: 103
• Frequency range of detections: log ν = 8.2–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 24 UVOT and 12 XRT
• Largest catalogues (points): ZTF (1,857), ASAS-SN (959), NEOWISE (507), MMDCGR (94), WISEME (88)

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=31.27052, dec=32.20836, name="B2 0202+31")

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

Other FSRQs

• 4C +28.07
• PKS 0149+21
• 4C +31.03
• TXS 0222+185
• OC 457
• NRAO 140

How to cite

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