PKS 2204-54 multiwavelength SED

Also known as 1FGL J2207.8-5344, 1Jy 2204-540, 1OUNYU J220744-5346.5, 3FGL J2207.8-5345, 5BZQ J2207-5346, BZQ J2207-5346, CRATES J220743-534633, PKS 2204-540, PKS B2204-540, WMAP5 J2207-5348.

• Class: FSRQ
• Redshift: z = 1.215
• Position (ICRS): RA 331.93222°, Dec −53.77606°
• Data: 2,083 points (4 upper limits) from 37 catalogues
• Dated data: 2008–2024 (MJD 54821–60461)
• Undated catalogue values: 234
• 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: 36 UVOT and 26 XRT
• Largest catalogues (points): ASAS-SN (944), NEOWISE (647), WISEME (156), PACO (104), MMDCXRT (44)

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=331.93222, dec=-53.77606, name="PKS 2204-54")

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

Other FSRQs

• PKS 2123-463
• PKS 2052-47
• PKS 2142-75
• PKS 2149-306
• PKS 1954-388
• PKS 2255-282

How to cite

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