1ES 0502+675 multiwavelength SED

Also known as 1FGL J0507.9+6738, 1FLAT J050756.2+673724, 2FGL J0508.0+6737, 2FHL J0507.9+6737, 2WHSP J050756.0+673723, 3FGL J0508.0+6736, 3HSP J050756.2+673724, 4FGL J0507.9+6737, 5BZB J0507+6737, BZB J0507+6737.

• Class: BL Lac
• Redshift: z = 0.340
• Position (ICRS): RA 76.98405°, Dec 67.62340°
• Data: 4,067 points (15 upper limits) from 31 catalogues
• Dated data: 1996–2024 (MJD 50362–60613)
• Undated catalogue values: 83
• Frequency range of detections: log ν = 8.5–26.4 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 236 UVOT and 305 XRT
• Largest catalogues (points): ZTF (1,421), ASAS-SN (849), NEOWISE (671), MMDCXRT (666), WISEME (102)

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=76.98405, dec=67.6234, name="1ES 0502+675")

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

Other BL Lac objects

• S5 0716+71
• MS 0737.9+7441
• 1H 0658+595
• S5 0454+84
• S4 0707+47
• 1ES 0806+524

How to cite

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