3C 371 multiwavelength SED

Also known as 1FGL J1807.0+6945, 1FLAT J180650.7+694928, 1Jy 1807+698, 1OUNYU J180651+6949.4, 2FGL J1806.7+6948, 3C371.0, 3FGL J1806.7+6949, 5BZB J1806+6949, BZB J1806+6949, CRATES J180651+694931, S41807+698, UGC11130, WMAP5 J0955+6935, WMAP67.

• Class: BL Lac
• Redshift: z = 0.051
• Position (ICRS): RA 271.71117°, Dec 69.82447°
• Data: 9,540 points (8 upper limits) from 46 catalogues
• Dated data: 1998–2025 (MJD 51078–60969)
• Undated catalogue values: 721
• Frequency range of detections: log ν = 7.9–25.5 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 318 UVOT and 311 XRT
• Largest catalogues (points): ASAS-SN (3,850), ZTF (3,389), SUFST (520), WISEME (421), MMDCXRT_ORBIT (311)

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=271.71117, dec=69.82447, name="3C 371")

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

Other BL Lac objects

• S4 1749+70
• S5 1803+784
• S5 2007+77
• 1ES 1959+650
• 4C +56.27
• 1H 1515+660

How to cite

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