B3 1615+412 multiwavelength SED

Also known as 1FLAT J161706.3+410647, 5BZB J1617+4106, BZB J1617+4106, CRATES J161706+410658, FBQS J161706.3+410646, SDSS J161706.32+410647.0.

• Class: BL Lac
• Redshift: z = 0.267
• Position (ICRS): RA 244.27636°, Dec 41.11306°
• Data: 5,954 points (69 upper limits) from 28 catalogues
• Dated data: 2009–2024 (MJD 54991–60609)
• Undated catalogue values: 58
• Frequency range of detections: log ν = 8.2–25.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 50 UVOT
• Largest catalogues (points): ZTF (3,767), NEOWISE (1,134), ASAS-SN (480), WISEME (412), PanSTARRS-LC (81)

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=244.27636, dec=41.11306, name="B3 1615+412")

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

Other BL Lac objects

• Mrk 501
• B3 1659+399
• RBS 1555
• 1ES 1533+535
• I Zw 187
• SBS 1508+561

How to cite

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