OK 630 multiwavelength SED

Also known as 1FGL J0919.6+6216, 1FLAT J092136.2+621550, 1Jy 0917+624, 2FGL J0921.9+6216, 3FGL J0921.8+6215, 4FGL J0921.6+6216, 5BZQ J0921+6215, BZQ J0921+6215, CRATES J092135+621546, S40917+624, WMAP5 J0921+6215.

• Class: FSRQ
• Redshift: z = 1.447
• Position (ICRS): RA 140.40096°, Dec 62.26449°
• Data: 3,500 points (69 upper limits) from 34 catalogues
• Dated data: 2007–2025 (MJD 54201–60968)
• Undated catalogue values: 97
• Frequency range of detections: log ν = 7.9–25.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 68 UVOT and 25 XRT
• Largest catalogues (points): ZTF (2,100), NEOWISE (652), MMDCGR (335), WISEME (106), PanSTARRS-LC (78)

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=140.40096, dec=62.26449, name="OK 630")

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

Other FSRQs

• 4C +55.17
• TXS 1028+605
• S4 1030+61
• 4C +71.07
• 87GB 080551.6+535010
• TXS 0724+571

How to cite

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