PKS 0237+040 multiwavelength SED

Also known as 5BZQ J0239+0416, BZQ J0239+0416, CRATES J023950+041626, PKS B0237+040, TXS 0237+040.

• Class: FSRQ
• Redshift: z = 0.976
• Position (ICRS): RA 39.96360°, Dec 4.27261°
• Data: 2,569 points (8 upper limits) from 31 catalogues
• Dated data: 2010–2024 (MJD 55219–60611)
• Undated catalogue values: 93
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Largest catalogues (points): ZTF (1,771), NEOWISE (502), WISEME (97), PanSTARRS-LC (74), ALMA (32)

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=39.9636, dec=4.27261, name="PKS 0237+040")

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

Other FSRQs

• PKS 0221+067
• PKS 0215+015
• 4C +13.14
• TXS 0222+185
• PKS 0336-01
• PKS 0119+11

How to cite

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