RBS 0042 multiwavelength SED

Also known as 1FGL J0018.6+2945, 1FLAT J001827.8+294730, 1RXS J001827.8+294730, 2FGL J0018.5+2945, 2FHL J0018.5+2947, 2WHSP J001827.7+294730, 3FGL J0018.4+2947, 3HSP J001827.8+294731, 5BZB J0018+2947, BZB J0018+2947, RBS 42, RX J00184+2947, RXS J00184+2947.

• Class: BL Lac
• Redshift: z = 0.100
• Position (ICRS): RA 4.61579°, Dec 29.79199°
• Data: 10,298 points (78 upper limits) from 30 catalogues
• Dated data: 2007–2024 (MJD 54245–60611)
• Undated catalogue values: 72
• 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: 8 UVOT and 12 XRT
• Largest catalogues (points): ZTF (8,899), NEOWISE (639), ASAS-SN (407), WISEME (160), PanSTARRS-LC (62)

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=4.61579, dec=29.79199, name="RBS 0042")

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

Other BL Lac objects

• B3 0045+395
• TXS 2320+343
• S2 0109+22
• 1ES 0120+340
• MS 0011.7+0837
• MS 0205.7+3509

How to cite

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