4C +05.64 multiwavelength SED

Also known as 1FGL J1550.7+0527, 1FLAT J155035.3+052710, 1Jy 1548+056, 1OUNYU J155035+0527.1, 2FGL J1550.7+0526, 3FGL J1550.5+0526, 5BZQ J1550+0527, BZQ J1550+0527, CRATES J155035+052702, PKS 1548+056, PKS B1548+056, TXS 1548+056, WMAP5 J2123+0536, WMAP7.

• Class: FSRQ
• Redshift: z = 1.420
• Position (ICRS): RA 237.64696°, Dec 5.45290°
• Data: 3,407 points (14 upper limits) from 44 catalogues
• Dated data: 2005–2024 (MJD 53628–60569)
• Undated catalogue values: 143
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 26 UVOT and 12 XRT
• Largest catalogues (points): ZTF (1,355), ALMA (738), NEOWISE (614), ASAS-SN (275), PanSTARRS-LC (103)

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=237.64696, dec=5.4529, name="4C +05.64")

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

Other FSRQs

• PKS 1546+027
• 4C +10.45
• PKS 1551+130
• PKS 1502+036
• PKS 1502+106
• TXS 1448+093

How to cite

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