PKS 1958-179 multiwavelength SED

Also known as 1FGL J2000.9-1749, 1Jy 1958-179, 1OUNYU J200057-1748.9, 2FGL J2000.8-1751, 2FHL J2000.9-1749, 3FGL J2001.0-1750, 5BZQ J2000-1748, BZQ J2000-1748, CRATES J200057-174856, PKS B1958-179, WMAP11, WMAP5 J2000-1749.

• Class: FSRQ
• Redshift: z = 0.650
• Position (ICRS): RA 300.23788°, Dec −17.81602°
• Data: 2,515 points (8 upper limits) from 45 catalogues
• Dated data: 2006–2025 (MJD 54039–60969)
• Undated catalogue values: 327
• 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: 18 UVOT and 20 XRT
• Largest catalogues (points): ZTF (1,083), ASAS-SN (659), PanSTARRS-LC (111), ALMA (106), MMDCGR (100)

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=300.23788, dec=-17.81602, name="PKS 1958-179")

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

Other FSRQs

• PKS 2008-159
• TXS 1957-135
• PKS 1936-15
• TXS 1920-211
• PKS 2023-07
• PKS B1921-293

How to cite

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