S4 1144+40 multiwavelength SED

Also known as 1FGL J1146.8+4004, 2FGL J1146.9+4000, 5BZQ J1146+3958, BZQ J1146+3958, CRATES J114657+395840, S41144+402, WMAP5 J1146+4001.

• Class: FSRQ
• Redshift: z = 1.091
• Position (ICRS): RA 176.74291°, Dec 39.97620°
• Data: 3,141 points (5 upper limits) from 34 catalogues
• Dated data: 2008–2025 (MJD 54747–60969)
• Undated catalogue values: 110
• Frequency range of detections: log ν = 8.2–25.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Largest catalogues (points): ZTF (1,821), ASAS-SN (515), MMDCGR (292), ALMA (238), PanSTARRS-LC (82)

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=176.74291, dec=39.9762, name="S4 1144+40")

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

Other FSRQs

• 4C +49.22
• Ton 599
• TXS 1226+492
• TXS 1145+268
• S4 1030+41
• TXS 1206+549

How to cite

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