B2 1846+32A multiwavelength SED

Also known as 1FGL J1848.5+3224, 1FLAT J184822.1+321902, 1OUNYU J184822+3219.0, 2FGL J1848.5+3216, 3FGL J1848.4+3216, 5BZQ J1848+3219, BZQ J1848+3219, CGRaBS J1848+3219, CRATES J184821+321903, TEX 1846+322, TXS 1846+322, WMAP5 J1848+3223.

• Class: FSRQ
• Redshift: z = 0.798
• Position (ICRS): RA 282.09204°, Dec 32.31739°
• Data: 4,002 points (9 upper limits) from 35 catalogues
• Dated data: 2008–2024 (MJD 54828–60490)
• Undated catalogue values: 88
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 82 UVOT and 49 XRT
• Largest catalogues (points): ZTF (2,476), NEOWISE (868), ASAS-SN (183), WISEME (128), PanSTARRS-LC (91)

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=282.09204, dec=32.31739, name="B2 1846+32A")

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

Other FSRQs

• 3C 395
• B2 1751+28
• S4 1800+44
• S4 1851+48
• B2 1722+33
• S4 1726+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).