PKS 2123-463 multiwavelength SED

Also known as 1FGL J2126.1-4603, 1OUNYU J212631-4605.8, 3FGL J2126.5-4605, 5BZQ J2126-4605, BZQ J2126-4605, CRATES J212631-460553, PKS B2123-463.

• Class: FSRQ
• Redshift: z = 1.670
• Position (ICRS): RA 321.62793°, Dec −46.09664°
• Data: 3,697 points (8 upper limits) from 36 catalogues
• Dated data: 2008–2025 (MJD 54736–60711)
• Undated catalogue values: 167
• Frequency range of detections: log ν = 7.9–24.7 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 34 UVOT and 18 XRT
• Largest catalogues (points): ASAS-SN (3,343), WISEME (72), MMDCGR (46), SUFST (30), PACO (24)

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=321.62793, dec=-46.09664, name="PKS 2123-463")

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

Other FSRQs

• PKS 2052-47
• PKS 2204-54
• PKS 2149-306
• PKS 2021-330
• 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).