PKS 0537-441 multiwavelength SED

Names and position

Also known as 1FGL J0538.8-4404, 1FLAT J053850.3-440509, 1Jy 0537-441, 1OUNYU J053850-4405.1, 3FGL J0538.8-4405, 5BZB J0538-4405, BZB J0538-4405, CRATES J053851-440507, PKS B0537-441, PLCKERC353G250.08-31.08, QSO B0537-441, WMAP148, WMAP5 J0538-4405.

• Class: BL Lac
• Redshift: z = 0.892
• Position (ICRS): RA 84.70984°, Dec −44.08582°
• Galactic: l 250.083°, b −31.090°

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

The SED

• Data: 8,902 points (92 upper limits) from 51 catalogues
• Dated data: 1998–2024 (MJD 51145–60456)
• Undated catalogue values: 713
• Frequency range of detections: log ν = 7.9–26.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 378 UVOT and 119 XRT
• Largest catalogues (points): ASAS-SN (4,188), NEOWISE (1,372), ALMA (577), MMDCGR (527), SMARTS (464)

Data by band

All 7 bands have data. The optical band has the most points, 4,529 of 8,902; its largest catalogue is ASAS-SN with 4,188.

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=84.70984, dec=-44.08582, name="PKS 0537-441")

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

Nearby sources

• PKS 0524-460, 3.0° away
• PKS 0514-459, 4.5° away
• 1ES 0602-482, 6.1° away
• PKS 0454-46, 7.9° away

Other BL Lac objects

• PKS 0447-439
• PKS 0548-322
• PKS 0426-380
• PKS 0516-621
• TXS 0628-240
• PKS 0352-686

How to cite

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