S4 1315+34 multiwavelength SED

Also known as 1FGL J1317.8+3425, 1FLAT J131736.5+342515, 2FGL J1317.9+3426, 3FGL J1317.8+3429, 5BZQ J1317+3425, BZQ J1317+3425, BZU J1317+3425, CRATES J131736+342514, S41315+346, TXS 1315+346.

• Class: FSRQ
• Redshift: z = 1.055
• Position (ICRS): RA 199.40206°, Dec 34.42109°
• Data: 3,150 points (8 upper limits) from 31 catalogues
• Dated data: 2010–2024 (MJD 55223–60461)
• Undated catalogue values: 81
• 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: 42 UVOT and 5 XRT
• Largest catalogues (points): ZTF (1,711), NEOWISE (679), ASAS-SN (454), WISEME (110), PanSTARRS-LC (78)

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=199.40206, dec=34.42109, name="S4 1315+34")

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

Other FSRQs

• 5C 12.291
• B2 1348+30B
• 87GB 135731.7+402612
• B3 1330+476
• OQ 334
• B2 1436+37B

How to cite

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