MS 1402.3+0416 multiwavelength SED

Also known as 1FLAT J140450.9+040202, 1OUNYU J140451+0402.0, 1WGA J1404.8+0402, 1WHSP J140450.8+040202, 2FGL J1405.1+0405, 2WHSP J140450.8+040202, 3FGL J1404.8+0401, 3HSP J140450.9+040202, 5BZB J1404+0402, BZB J1404+0402, MS 14023+0416, ROXA J140449.5+655431.6, SDSS J140450.91+040202.1.

• Class: BL Lac
• Redshift: z = 0.370
• Position (ICRS): RA 211.21213°, Dec 4.03395°
• Data: 3,654 points (28 upper limits) from 34 catalogues
• Dated data: 2006–2025 (MJD 54099–60679)
• Undated catalogue values: 94
• 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: 90 UVOT and 35 XRT
• Largest catalogues (points): ASAS-SN (1,774), ZTF (866), NEOWISE (621), WISEME (113), PanSTARRS-LC (80)

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=211.21213, dec=4.03395, name="MS 1402.3+0416")

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

Other BL Lac objects

• TXS 1421+048
• RBS 1257
• 4C +16.39
• 1ES 1440+122
• RBS 1424
• LEDA 1410672

How to cite

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