PKS 0637-75 multiwavelength SED

Also known as 1FGL J0636.1-7521, 1FLAT J063546.5-751616, 1Jy 0637-752, 3FGL J0635.7-7517, 5BZQ J0635-7516, BZQ J0635-7516, CRATES J063542-751615, PKS 0637-752, PKS B0637-752, WMAP167, WMAP5 J0408-7506.

• Class: FSRQ
• Redshift: z = 0.653
• Position (ICRS): RA 98.94378°, Dec −75.27134°
• Data: 9,071 points (2 upper limits) from 42 catalogues
• Dated data: 2008–2025 (MJD 54703–60838)
• Undated catalogue values: 891
• 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: 208 UVOT and 294 XRT
• Largest catalogues (points): ASAS-SN (6,391), ALMA (647), SUFST (351), MMDCXRT_ORBIT (277), SMARTS (256)

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=98.94378, dec=-75.27134, name="PKS 0637-75")

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

Other FSRQs

• PKS 0601-70
• PKS 0301-721
• PKS 0539-543
• PKS 0308-611
• PKS 2142-75
• PKS 0700-465

How to cite

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