4C +51.37 multiwavelength SED

Also known as 1FGL J1740.0+5209, 1FLAT J174037.0+521143, 1Jy 1739+522, 1OUNYU J174037+5211.7, 2FGL J1740.2+5212, 3FGL J1740.3+5211, 5BZQ J1740+5211, BZQ J1740+5211, CRATES J174036+521147, OT566, QSO B1739+522, S41739+522, TXS 1739+522, WMAP48, WMAP5 J0043+5208.

• Class: FSRQ
• Redshift: z = 1.381
• Position (ICRS): RA 265.15407°, Dec 52.19539°
• Data: 5,726 points (47 upper limits) from 44 catalogues
• Dated data: 2006–2024 (MJD 54046–60610)
• Undated catalogue values: 126
• Frequency range of detections: log ν = 7.9–25.5 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 48 UVOT and 33 XRT
• Largest catalogues (points): ZTF (2,957), NEOWISE (1,520), ASAS-SN (405), WISEME (296), MMDCGR (217)

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=265.15407, dec=52.19539, name="4C +51.37")

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

Other FSRQs

• S4 1738+49
• S4 1726+45
• S4 1800+44
• B3 1708+433
• OS 562
• 4C +47.44

How to cite

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