1H 0323+022 multiwavelength SED

Also known as 1FGL J0326.2+0222, 1FLAT J032613.9+022514, 1OUNYU J032614+0225.2, 2E 0323+0214, 2FGL J0326.1+0224, 2FHL J0326.3+0227, 2WHSP J032613.9+022514, 3FGL J0326.2+0225, 3HSP J032613.9+022515, 5BZB J0326+0225, BZB J0326+0225, QSO B0323+022, SHBL J032613.9+022515.

• Class: BL Lac
• Redshift: z = 0.147
• Position (ICRS): RA 51.55812°, Dec 2.42074°
• Data: 2,074 points (14 upper limits) from 44 catalogues
• Dated data: 1998–2025 (MJD 50833–60948)
• Undated catalogue values: 150
• Frequency range of detections: log ν = 7.9–26.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 36 UVOT and 24 XRT
• Largest catalogues (points): ASAS-SN (1,066), ZTF (596), PanSTARRS-LC (77), WISEME (74), MMDCXRT_ORBIT (44)

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=51.55812, dec=2.42074, name="1H 0323+022")

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

Other BL Lac objects

• 1ES 0414+009
• 1ES 0347-121
• 1E 0317.0+1835
• PKS 0235+164
• PKS 0302-16
• PKS 0336-177

How to cite

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