PKS 1728+004 multiwavelength SED

Also known as 1FGL J1730.4+0008, 1FLAT J173035.0+002438, 2FGL J1730.7+0023, 3FGL J1730.5+0023, 5BZQ J1730+0024, BZQ J1730+0024, CRATES J173034+002420, TXS 1728+004.

• Class: FSRQ
• Redshift: z = 1.335
• Position (ICRS): RA 262.64583°, Dec 0.41075°
• Data: 2,533 points (13 upper limits) from 32 catalogues
• Dated data: 2009–2024 (MJD 54985–60597)
• Undated catalogue values: 78
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 16 UVOT and 6 XRT
• Largest catalogues (points): ZTF (922), ASAS-SN (791), NEOWISE (574), WISEME (75), PanSTARRS-LC (56)

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=262.64583, dec=0.41075, name="PKS 1728+004")

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

Other FSRQs

• TXS 1801+036
• TXS 1720+102
• OS 092
• PKS 1730-13
• B2 1714+21
• 4C +10.45

How to cite

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