PKS B1921-293 multiwavelength SED

Also known as 1FGL J1925.2-2919, 1FLAT J192451.1-291430, 1OUNYU J192451-2914.5, 1RXS J192450.8-29143, 2FGL J1924.8-2912, 3FGL J1924.8-2914, 4FGL J1924.8-2914, 5BZQ J1924-2914, BZQ J1924-2914, CRATES J192451-291428, OV-236, PKS 1921-293, TXS 1921-293.

• Class: FSRQ
• Redshift: z = 0.353
• Position (ICRS): RA 291.21273°, Dec −29.24170°
• Data: 3,298 points (4 upper limits) from 43 catalogues
• Dated data: 2009–2024 (MJD 54903–60450)
• Undated catalogue values: 419
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 42 UVOT and 82 XRT
• Largest catalogues (points): ALMA (1,458), ASAS-SN (888), PACO (283), MMDCXRT (216), PanSTARRS-LC (80)

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=291.21273, dec=-29.2417, name="PKS B1921-293")

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

Other FSRQs

• TXS 1920-211
• PKS 1954-388
• PKS 2021-330
• PKS 1958-179
• PKS 1936-15
• PKS 2008-159

How to cite

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