B2 1436+37B multiwavelength SED

Also known as 1FGL J1438.7+3711, 1FLAT J143853.6+371035, 2FGL J1438.7+3712, 3FGL J1438.7+3710, 5BZQ J1438+3710, BZQ J1438+3710, CRATES J1438+3710, CRATES J143853+371026, TXS 1436+373.

• Class: FSRQ
• Redshift: z = 2.401
• Position (ICRS): RA 219.72338°, Dec 37.17650°
• Data: 3,166 points (35 upper limits) from 30 catalogues
• Dated data: 2010–2024 (MJD 55208–60490)
• Undated catalogue values: 63
• Frequency range of detections: log ν = 8.2–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 20 UVOT
• Largest catalogues (points): ZTF (1,980), NEOWISE (857), WISEME (156), PanSTARRS-LC (80), SPECFINDV3 (16)

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=219.72338, dec=37.1765, name="B2 1436+37B")

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

Other FSRQs

• OQ 334
• 87GB 135731.7+402612
• B2 1520+31
• TXS 1459+480
• B2 1348+30B
• PKS 1441+25

How to cite

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