PKS 0823+033 multiwavelength SED

Also known as 1FGL J0825.9+0309, 1FLAT J082550.3+030924, 1Jy 0823+033, 1OUNYU J082550+0309.4, 2FGL J0825.9+0308, 3FGL J0826.0+0307, 5BZB J0825+0309, BZB J0825+0309, CRATES J082549+030926, PKS B0823+033, TXS 0823+033, WMAP125, WMAP5 J0825+0311.

• Class: BL Lac
• Redshift: z = 0.510
• Position (ICRS): RA 126.45974°, Dec 3.15681°
• Data: 4,639 points (6 upper limits) from 46 catalogues
• Dated data: 2007–2024 (MJD 54453–60610)
• Undated catalogue values: 171
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 22 UVOT and 35 XRT
• Largest catalogues (points): ZTF (2,505), ASAS-SN (1,083), NEOWISE (545), PanSTARRS-LC (124), MMDCXRT (67)

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=126.45974, dec=3.15681, name="PKS 0823+033")

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

Other BL Lac objects

• PKS 0829+046
• OJ 014
• PKS 0754+100
• TXS 0826+180
• OJ 287
• PKS 0735+17

How to cite

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