1ES 0347-121 multiwavelength SED

Also known as 2WHSP J034923.1-115926, 3FGL J0349.2-1158, 3HSP J034923.2-115927, 5BZB J0349-1159, BZB J0349-1159, SHBL J034923.2-115927.

• Class: BL Lac
• Redshift: z = 0.188
• Position (ICRS): RA 57.34661°, Dec −11.99093°
• Data: 4,184 points (64 upper limits) from 30 catalogues
• Dated data: 1997–2024 (MJD 50458–60611)
• Undated catalogue values: 70
• Frequency range of detections: log ν = 8.9–26.4 [Hz] (radio, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 104 UVOT and 110 XRT
• Largest catalogues (points): ASAS-SN (1,767), ZTF (1,169), NEOWISE (646), MMDCXRT (181), WISEME (172)

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=57.34661, dec=-11.99093, name="1ES 0347-121")

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

Other BL Lac objects

• PKS 0336-177
• PKS 0338-214
• PKS 0302-16
• 1ES 0414+009
• RBS 0589
• 1H 0323+022

How to cite

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