1H 1914-194 multiwavelength SED

Also known as 1FGL J1917.7-1922, 1FLAT J191744.8-192132, 2FGL J1917.6-1921, 2FHL J1917.7-1921, 2WHSP J191744.8-192130, 3FGL J1917.7-1921, 4FGL J1917.7-1921, 5BZB J1917-1921, BZB J1917-1921, CRATES J191745-192138, PMN J1917-1921, TEX 1914-193, TXS 1914-194.

• Class: BL Lac
• Redshift: z = 0.137
• Position (ICRS): RA 289.43675°, Dec −19.35878°
• Data: 2,889 points (1 upper limits) from 33 catalogues
• Dated data: 2009–2024 (MJD 55002–60609)
• Undated catalogue values: 85
• Frequency range of detections: log ν = 7.9–26.4 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 72 UVOT and 40 XRT
• Largest catalogues (points): ASAS-SN (1,086), ZTF (948), NEOWISE (514), PanSTARRS-LC (92), WISEME (70)

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=289.43675, dec=-19.35878, name="1H 1914-194")

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

Other BL Lac objects

• TXS 2056-149
• PKS 2005-489
• OT 081
• TXS 2147-144
• PKS 2131-021
• PKS 2155-304

How to cite

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