OI 275 multiwavelength SED

Also known as 1FLAT J074836.1+240024, 1Jy 0745+241, 3FGL J0748.3+2401, 5BZQ J0748+2400, BZQ J0748+2400, CRATES J074836+240021, PKS 0745+241, PKS B0745+241, ROXA J074843.3+211545.1, TXS 0745+241.

• Class: FSRQ
• Redshift: z = 0.410
• Position (ICRS): RA 117.15046°, Dec 24.00670°
• Data: 3,692 points (6 upper limits) from 41 catalogues
• Dated data: 2009–2025 (MJD 55000–60968)
• Undated catalogue values: 158
• Frequency range of detections: log ν = 7.9–25.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 6 UVOT
• Largest catalogues (points): ZTF (2,245), ASAS-SN (573), NEOWISE (509), WISEME (74), PanSTARRS-LC (71)

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=117.15046, dec=24.0067, name="OI 275")

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

Other FSRQs

• B2 0743+25
• TXS 0747+185
• OI 380
• S3 0827+24
• 4C +14.23
• OJ 259

How to cite

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