1E 1415.6+2557 multiwavelength SED

Also known as 1FGL J1417.8+2541, 1FLAT J141756.6+254325, 2E 1415+2557, 2WHSP J141756.5+254324, 3FGL J1417.8+2540, 3HSP J141756.7+254326, 5BZB J1417+2543, BZB J1417+2543, QSO 1415+259, RBS 1366, ROXA J141756.5+254326.1, SDSS J141756.67+254326.2, [HB89]1415+259.

• Class: BL Lac
• Redshift: z = 0.236
• Position (ICRS): RA 214.48613°, Dec 25.72396°
• Data: 8,355 points (39 upper limits) from 35 catalogues
• Dated data: 2005–2024 (MJD 53516–60534)
• Undated catalogue values: 125
• Frequency range of detections: log ν = 8.2–26.2 [Hz] (radio, microwave, infrared, optical, ultraviolet, X-ray, γ-ray)
• Swift measurements analysed by MMDC: 54 UVOT and 77 XRT
• Largest catalogues (points): ZTF (4,589), ASAS-SN (2,507), NEOWISE (688), MMDCXRT (190), WISEME (148)

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=214.48613, dec=25.72396, name="1E 1415.6+2557")

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

Other BL Lac objects

• PKS 1424+240
• 87GB 141615.9+355650
• 4C +16.39
• RBS 1467
• TXS 1422+373
• PG 1437+398

How to cite

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