TXS 1421+048 multiwavelength SED

Also known as 1FLAT J142409.5+043452, 3FGL J1424.3+0434, 5BZB J1424+0434, BZB J1424+0434, CRATES J142409+043508, SDSS J142409.50+043452.0, TEX 1421+048.

• Class: BL Lac
• Redshift: z = 0.666
• Position (ICRS): RA 216.03959°, Dec 4.58113°
• Data: 2,299 points (6 upper limits) from 29 catalogues
• Dated data: 2010–2024 (MJD 55206–60493)
• Undated catalogue values: 88
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Largest catalogues (points): ASAS-SN (1,426), NEOWISE (563), WISEME (119), PanSTARRS-LC (64), ZTF (25)

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=216.03959, dec=4.58113, name="TXS 1421+048")

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

Other BL Lac objects

• MS 1402.3+0416
• 1ES 1440+122
• RBS 1424
• PKS 1509+022
• 4C +16.39
• TXS 1516+064

How to cite

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