4C +31.03 multiwavelength SED

Also known as 1FGL J0112.9+3207, 1FLAT J011250.3+320817, 1OUNYU J011250+3208.2, 2FGL J0112.8+3208, 3FGL J0112.8+3207, 5BZQ J0112+3208, BZQ J0112+3208, CRATES J011250+320832, NRAO62, TXS 0110+318.

• Class: FSRQ
• Redshift: z = 0.604
• Position (ICRS): RA 18.20972°, Dec 32.13818°
• Data: 2,253 points (95 upper limits) from 39 catalogues
• Dated data: 2008–2024 (MJD 54746–60519)
• Undated catalogue values: 91
• 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: 100 UVOT and 32 XRT
• Largest catalogues (points): ASAS-SN (702), NEOWISE (598), MMDCGR (483), WISEME (116), MMDCXRT (114)

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=18.20972, dec=32.13818, name="4C +31.03")

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

Other FSRQs

• B2 0202+31
• 4C +25.01
• PKS 0149+21
• S4 0003+38
• OC 457
• S4 0110+49

How to cite

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