NRAO 140 multiwavelength SED

Also known as 1FGL J0334.2+3233, 1OUNYU J033630+3218.4, 2FGL J0337.0+3200, 3FGL J0336.5+3210, 5BZQ J0336+3218, BZQ J0336+3218, CRATES J033630+321836, TXS 0333+321.

• Class: FSRQ
• Redshift: z = 1.259
• Position (ICRS): RA 54.12545°, Dec 32.30815°
• Data: 2,852 points (8 upper limits) from 44 catalogues
• Dated data: 1999–2025 (MJD 51395–60948)
• Undated catalogue values: 159
• Frequency range of detections: log ν = 7.9–24.7 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 44 UVOT and 43 XRT
• Largest catalogues (points): ZTF (2,004), ASAS-SN (289), MMDCXRT_ORBIT (83), ALMA (75), WISEME (74)

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=54.12545, dec=32.30815, name="NRAO 140")

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

Other FSRQs

• OF 200
• TXS 0322+222
• 4C +28.07
• B2 0202+31
• TXS 0222+185
• 4C +13.14

How to cite

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