PKS 1441+25 multiwavelength SED

Also known as 1FGL J1443.8+2457, 1FLAT J144356.9+250144, 2FGL J1444.1+2500, 3FGL J1443.9+2502, 5BZQ J1443+2501, BZQ J1443+2501, CRATES J144356+250156, PKS 1441+252, PKS B1441+252.

• Class: FSRQ
• Redshift: z = 0.940
• Position (ICRS): RA 220.98705°, Dec 25.02903°
• Data: 2,795 points (39 upper limits) from 36 catalogues
• Dated data: 2008–2025 (MJD 54796–60900)
• Undated catalogue values: 237
• 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: 176 UVOT and 73 XRT
• Largest catalogues (points): ZTF (1,824), MMDCGR (175), SUFST (159), WISEME (138), MMDCOUV (88)

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=220.98705, dec=25.02903, name="PKS 1441+25")

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

Other FSRQs

• PKS B1434+235
• OQ 253
• OQ 334
• B2 1520+31
• B2 1436+37B
• B2 1348+30B

How to cite

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