MS 0205.7+3509 multiwavelength SED

Also known as 1FGL J0208.6+3522, 1FLAT J020838.2+352312, 1OUNYU J020838+3523.2, 2WHSP J020838.1+352312, 3FGL J0208.6+3522, 3HSP J020838.2+352313, 5BZB J0208+3523, BZB J0208+3523, MS 02057+3509, SHBL J020838.1+352313.

• Class: BL Lac
• Redshift: z = 0.318
• Position (ICRS): RA 32.15901°, Dec 35.38689°
• Data: 2,656 points (100 upper limits) from 28 catalogues
• Dated data: 2010–2024 (MJD 55223–60609)
• Undated catalogue values: 70
• Frequency range of detections: log ν = 9.2–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 34 UVOT and 10 XRT
• Largest catalogues (points): ZTF (1,597), NEOWISE (575), WISEME (232), PanSTARRS-LC (76), ASAS-SN (61)

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=32.15901, dec=35.38689, name="MS 0205.7+3509")

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

Other BL Lac objects

• 3C 66A
• 1ES 0120+340
• B2 0201+24
• 1ES 0229+200
• B3 0045+395
• S2 0109+22

How to cite

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