S5 1039+81 multiwavelength SED

Also known as 1FGL J1048.7+8054, 1FLAT J104423.1+805439, 1Jy 1039+811, 2FGL J1042.6+8053, 3FGL J1044.4+8058, 5BZQ J1044+8054, BZQ J1044+8054, CRATES J104423+805439, S51039+811.

• Class: FSRQ
• Redshift: z = 1.254
• Position (ICRS): RA 161.09609°, Dec 80.91096°
• Data: 2,751 points (6 upper limits) from 35 catalogues
• Dated data: 2008–2025 (MJD 54694–60968)
• Undated catalogue values: 149
• Frequency range of detections: log ν = 8.2–24.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 16 UVOT and 41 XRT
• Largest catalogues (points): ZTF (1,724), ASAS-SN (437), WISEME (138), MMDCGR (82), PanSTARRS-LC (68)

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=161.09609, dec=80.91096, name="S5 1039+81")

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

Other FSRQs

• S5 1150+81
• S5 1217+71
• 4C +71.07
• S5 0633+73
• OK 630
• S4 1030+61

How to cite

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