S5 0454+84 multiwavelength SED

Also known as 1FLAT J050842.0+843204, 1Jy 0454+844, 5BZB J0508+8432, BZB J0508+8432, CRATES J050842+843205, S50454+844.

• Class: BL Lac
• Redshift: z = 1.340
• Position (ICRS): RA 77.17651°, Dec 84.53460°
• Data: 2,567 points (8 upper limits) from 29 catalogues
• Dated data: 2007–2024 (MJD 54380–60611)
• Undated catalogue values: 69
• Frequency range of detections: log ν = 8.2–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 8 UVOT and 10 XRT
• Largest catalogues (points): NEOWISE (1,023), ZTF (841), ASAS-SN (408), WISEME (136), PanSTARRS-LC (75)

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=77.17651, dec=84.5346, name="S5 0454+84")

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

Other BL Lac objects

• MS 0737.9+7441
• S5 0716+71
• S5 2007+77
• S5 1803+784
• 1ES 0502+675
• Mrk 180

How to cite

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