OK 290 multiwavelength SED

Also known as 1FGL J0956.9+2513, 1FLAT J095649.9+251516, 1Jy 0953+254, 1OUNYU J095650+2515.2, 2FGL J0956.9+2516, 3FGL J0956.6+2515, 5BZQ J0956+2515, BZQ J0956+2515, CRATES J095650+251511, TXS 0953+254.

• Class: FSRQ
• Redshift: z = 0.708
• Position (ICRS): RA 149.20781°, Dec 25.25446°
• Data: 2,701 points (7 upper limits) from 49 catalogues
• Dated data: 2007–2024 (MJD 54251–60613)
• Undated catalogue values: 192
• 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: 44 UVOT and 36 XRT
• Largest catalogues (points): ZTF (1,270), NEOWISE (528), ASAS-SN (412), PanSTARRS-LC (76), WISEME (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=149.20781, dec=25.25446, name="OK 290")

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

Other FSRQs

• OL 220
• B2 0920+28
• OL 318
• OL 282
• 4C +40.24
• 4C +38.28

How to cite

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