B2 0906+31 multiwavelength SED

Also known as 1OUNYU J090953+3106.0, 1WHSP J090953.2+310603, 2WHSP J090953.2+310602, 3HSP J090953.3+310603, 5BZB J0909+3106, BZB J0909+3106, SDSS J090953.28+310603.1.

• Class: BL Lac
• Redshift: z = 0.279
• Position (ICRS): RA 137.47202°, Dec 31.10088°
• Data: 6,168 points (18 upper limits) from 32 catalogues
• Dated data: 2010–2024 (MJD 55238–60611)
• Undated catalogue values: 81
• 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: 132 UVOT and 61 XRT
• Largest catalogues (points): ZTF (3,059), ASAS-SN (2,199), NEOWISE (556), PanSTARRS-LC (73), MMDCXRT (71)

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=137.47202, dec=31.10088, name="B2 0906+31")

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

Other BL Lac objects

• Ton 0396
• Ton 1015
• OJ 287
• B2 0806+35
• B3 0850+443
• B3 0824+420

How to cite

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