S4 0003+38 multiwavelength SED

Also known as 1FGL J0005.7+3815, 1OUNYU J000557+3820.2, 2FGL J0006.1+3821, 3FGL J0006.4+3825, 5BZQ J0005+3820, BZQ J0005+3820, CRATES J000557+382010, S40003+380.

• Class: FSRQ
• Redshift: z = 0.234
• Position (ICRS): RA 1.48823°, Dec 38.33754°
• Data: 3,164 points (6 upper limits) from 35 catalogues
• Dated data: 2007–2024 (MJD 54249–60609)
• Undated catalogue values: 97
• Frequency range of detections: log ν = 7.9–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 12 UVOT and 22 XRT
• Largest catalogues (points): ZTF (1,765), NEOWISE (648), ASAS-SN (413), WISEME (114), PanSTARRS-LC (60)

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=1.48823, dec=38.33754, name="S4 0003+38")

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

Other FSRQs

• B2 2308+34
• 4C +25.01
• 4C +27.50
• 4C +31.03
• S4 0110+49
• OC 457

How to cite

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