S4 1427+543 multiwavelength SED

Also known as 5BZQ J1429+5406, BZQ J1429+5406, CRATES J142921+540613, OQ546, ROXA J142921.7+540611.1, TXS 1427+543.

• Class: FSRQ
• Redshift: z = 3.013
• Position (ICRS): RA 217.34116°, Dec 54.10309°
• Data: 3,805 points (166 upper limits) from 29 catalogues
• Dated data: 2006–2024 (MJD 53982–60490)
• Undated catalogue values: 66
• 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: 30 UVOT and 11 XRT
• Largest catalogues (points): ZTF (2,415), NEOWISE (1,042), WISEME (142), PanSTARRS-LC (69), NuBlazar (34)

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=217.34116, dec=54.10309, name="S4 1427+543")

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

Other FSRQs

• 87GB 135720.6+555936
• TXS 1459+480
• B3 1330+476
• TXS 1308+554
• 87GB 135731.7+402612
• TXS 1623+578

How to cite

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