MS 1229.2+6430 multiwavelength SED

Also known as 1FLAT J123131.4+641418, 1WHSP J123131.3+641418, 2WHSP J123131.3+641417, 3FGL J1231.5+6414, 3HSP J123131.4+641418, 5BZB J1231+6414, BZB J1231+6414, MS 12292+6430, ROXA J123131.3+641418.3, SDSS J123131.39+641418.2.

• Class: BL Lac
• Redshift: z = 0.163
• Position (ICRS): RA 187.88081°, Dec 64.23841°
• Data: 7,776 points (23 upper limits) from 34 catalogues
• Dated data: 2010–2024 (MJD 55253–60609)
• Undated catalogue values: 91
• 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: 72 UVOT and 32 XRT
• Largest catalogues (points): ZTF (5,318), ASAS-SN (1,139), NEOWISE (976), WISEME (108), PanSTARRS-LC (65)

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=187.88081, dec=64.23841, name="MS 1229.2+6430")

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

Other BL Lac objects

• 1H 1241+626
• SBS 1200+608
• TXS 1148+592
• Mrk 180
• MS 1407.9+5954
• SBS 1339+554

How to cite

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