MS 1407.9+5954 multiwavelength SED

Also known as 1FLAT J140923.5+593940, 1OUNYU J140924+5939.6, 2WHSP J140923.5+593939, 3HSP J140923.5+593941, 5BZB J1409+5939, BZB J1409+5939, MS 14079+5954, ROXA J140923.3+593940.7, SDSS J140923.50+593940.7.

• Class: BL Lac
• Redshift: z = 0.496
• Position (ICRS): RA 212.34787°, Dec 59.66128°
• Data: 3,703 points (67 upper limits) from 28 catalogues
• Dated data: 2010–2024 (MJD 55288–60527)
• Undated catalogue values: 61
• 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: 24 UVOT
• Largest catalogues (points): ZTF (2,131), NEOWISE (1,201), WISEME (160), PanSTARRS-LC (68), ASAS-SN (65)

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=212.34787, dec=59.66128, name="MS 1407.9+5954")

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

Other BL Lac objects

• 1ES 1421+582
• RBS 1409
• OQ 530
• SBS 1339+554
• SBS 1508+561
• 1H 1515+660

How to cite

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