PKS 0426-380 multiwavelength SED

Names and position

Also known as 1FGL J0428.6-3756, 1FLAT J042840.4-375619, 1Jy 0426-380, 2FGL J0428.6-3756, 2FHL J0428.7-3755, 3FGL J0428.6-3756, 5BZB J0428-3756, BZB J0428-3756, CRATES J042840-375617, PKS B0426-380, WMAP5 J0428-3757.

• Class: BL Lac
• Redshift: z = 1.110
• Position (ICRS): RA 67.16843°, Dec −37.93877°
• Galactic: l 240.708°, b −43.618°

Other names and measurements: NED and SIMBAD within 5″ of this position.

The SED

• Data: 2,289 points (136 upper limits) from 40 catalogues
• Dated data: 2008–2025 (MJD 54503–60877)
• Undated catalogue values: 111
• 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: 74 UVOT and 50 XRT
• Largest catalogues (points): NEOWISE (880), MMDCGR (823), WISEME (126), PACO (117), SUFST (53)

Data by band

All 7 bands have data. The infrared band has the most points, 1,024 of 2,289; its largest catalogue is NEOWISE with 880.

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=67.16843, dec=-37.93877, name="PKS 0426-380")

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

Nearby sources

• PKS 0402-362, 5.3° away
• PKS 0447-439, 7.1° away
• PKS 0454-46, 9.7° away
• PKS 0451-28, 11.1° away

Other BL Lac objects

• PKS 0537-441
• PKS 0548-322
• PKS 0338-214
• 1ES 0602-482
• RBS 0589
• PKS 0301-243

How to cite

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