OF 200 multiwavelength SED

Also known as 1Jy 0400+258, 1OUNYU J040306+2559.9, 5BZQ J0403+2600, BZQ J0403+2600, CRATES J040305+260003, DW0400+25, GB6 B0400+2551, GB6 J0403+2600, PKS 0400+258, PKS B0400+258, TXS 0400+258.

• Class: FSRQ
• Redshift: z = 2.109
• Position (ICRS): RA 60.77328°, Dec 26.00042°
• Data: 2,677 points (25 upper limits) from 34 catalogues
• Dated data: 2007–2024 (MJD 54126–60609)
• Undated catalogue values: 118
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 16 UVOT and 2 XRT
• Largest catalogues (points): ZTF (1,704), NEOWISE (480), PanSTARRS-LC (138), ASAS-SN (135), WISEME (66)

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=60.77328, dec=26.00042, name="OF 200")

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

Other FSRQs

• NRAO 140
• TXS 0322+222
• PKS 0507+17
• 4C +28.07
• 4C +06.21
• TXS 0222+185

How to cite

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