4C +40.24 multiwavelength SED

Also known as 1FLAT J094855.3+403944, 1Jy 0945+408, 1OUNYU J094855+4039.7, 2FGL J0948.8+4040, 3FGL J0948.6+4041, 4C40.24, 5BZQ J0948+4039, BZQ J0948+4039, CRATES J094855+403956, ROXA J094855.3+403944.6, S40945+408, TXS 0945+408, WMAP104, WMAP5 J0948+4038.

• Class: FSRQ
• Redshift: z = 1.250
• Position (ICRS): RA 147.23058°, Dec 40.66239°
• Data: 2,485 points (11 upper limits) from 38 catalogues
• Dated data: 2007–2024 (MJD 54223–60610)
• Undated catalogue values: 116
• Frequency range of detections: log ν = 7.4–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 58 UVOT and 14 XRT
• Largest catalogues (points): ZTF (1,718), ASAS-SN (411), PanSTARRS-LC (92), WISEME (74), MMDCOUV (31)

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=147.23058, dec=40.66239, name="4C +40.24")

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

Other FSRQs

• 4C +38.28
• S4 0917+44
• OK 492
• OL 318
• S4 1030+41
• B2 0920+28

How to cite

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