PKS 1424-41 multiwavelength SED

Names and position

Also known as 1FGL J1428.2-4204, 1FLAT J142756.3-420619, 1Jy 1424-418, 1OUNYU J142756-4206.3, 2FGL J1428.0-4206, 2FHL J1427.3-4204, 3FGL J1427.9-4206, 4FGL J1427.9-4206, 5BZQ J1427-4206, BZQ J1427-4206, CRATES J142755-420612, PKS 1424-418, PKS B1424-418, QSO B1424-418, WMAP191, WMAP5 J1427-4206.

• Class: FSRQ
• Redshift: z = 1.522
• Fermi-LAT (4FGL): 4FGL J1427.9-4206
• Position (ICRS): RA 216.98457°, Dec −42.10540°
• Galactic: l 321.447°, b 17.271°

Other names and measurements: NED and SIMBAD within 5″ of this position.

The SED

• Data: 11,121 points (122 upper limits) from 40 catalogues
• Dated data: 2005–2025 (MJD 53479–60879)
• Undated catalogue values: 3,024
• Frequency range of detections: log ν = 7.9–26.2 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 644 UVOT and 499 XRT
• Largest catalogues (points): ASAS-SN (3,994), SMARTS (2,239), MMDCXRT (967), ALMA (915), MMDCGR (732)

Data by band

6 of the 7 bands have data. The optical band has the most points, 4,629 of 11,121; its largest catalogue is ASAS-SN with 3,994.

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=216.98457, dec=-42.1054, name="PKS 1424-41")

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

Nearby sources

• PKS 1440-389, 4.2° away
• PKS 1451-375, 6.7° away
• Cen A, 11.5° away
• PKS 1313-333, 16.5° away

Other FSRQs

• PKS 1244-255
• PKS 1335-127
• PKS 1352-104
• PKS 1203-26
• PKS 1116-46
• PKS 1510-089

How to cite

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