The magnetic fields of EF Eridani and BL Hydri

Lilia Ferrario*, Jeremy Bailey, Dayal Wickramasinghe

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


We present near-infrared spectroscopic observations of the AM Herculis systems EF Eridani and BL Hydri over the wavelength range 0.9 to 2.5 μm. During these observations, broad and resolvable cyclotron emission harmonics were visible near 1.05, 1.30, 1.70 and 2.20 μm in EF Eridani, and near 1.25, 1.60 and 2.20 μm in BL Hydri. We interpret these features as arising from cyclotron emission regions located near the polar caps of the white dwarf of magnetic field strength B = 23 MG in BL Hydri, and from two separate cyclotron emission regions of field strengths B = 16.5 and 21 MG in EF Eridani.

Original languageEnglish
Pages (from-to)218-222
Number of pages5
JournalMonthly Notices of the Royal Astronomical Society
Issue number1
Publication statusPublished - 1996


  • Binaries: close
  • Novae, cataclysmic variables
  • Stars: individual: BL Hydri
  • Stars: individual: EF Eridani
  • Stars: Magnetic fields
  • White dwarfs

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