B3 0824+420 multiwavelength SED

Also known as 1FLAT J082814.3+415353, 1OUNYU J082814+4153.8, 2WHSP J082814.2+415351, 3HSP J082814.2+415352, 5BZG J0828+4153, BZB J0828+4153, ROXA J082814.2+415351.9, RXS J08282+4153, SDSS J082814.20+415351.9.

• Class: BL Lac
• Redshift: z = 0.225
• Position (ICRS): RA 127.05918°, Dec 41.89774°
• Data: 3,989 points (34 upper limits) from 33 catalogues
• Dated data: 2010–2024 (MJD 55233–60604)
• Undated catalogue values: 81
• 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: 84 XRT
• Largest catalogues (points): ZTF (2,323), ASAS-SN (566), NEOWISE (553), PanSTARRS-LC (167), MMDCXRT (113)

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=127.05918, dec=41.89774, name="B3 0824+420")

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

Other BL Lac objects

• B3 0850+443
• B2 0806+35
• 1ES 0806+524
• Ton 1015
• 1ES 0927+500
• B2 0906+31

How to cite

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