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Abstract <p>Parameters of the fast rotating magnetic white dwarf in the close low-mass binary system LAMOST J024048.51<InlineEquation ID="IEq3"> <EquationSource Format="TEX">\(+\)</EquationSource> <!--BPhysMGU2570194Beskrovnaya-m3--> </InlineEquation>195226.9 are discussed. Following an accretion-driven spin-up scenario we evaluate the surface magnetic field of the white dwarf to be about 35 MG. Under these conditions, in the current epoch the white dwarf should spin down by the pulsar mechanism at an expected rate of <InlineEquation ID="IEq4"> <EquationSource Format="TEX">\(\sim 2\times 10^{-14}\)</EquationSource> <!--BPhysMGU2570194Beskrovnaya-m4--> </InlineEquation> s s<InlineEquation ID="IEq5"> <EquationSource Format="TEX">\({}^{-1}\)</EquationSource> <!--BPhysMGU2570194Beskrovnaya-m5--> </InlineEquation>.</p>

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LAMOST J024048.51\(\boldsymbol{+}\)195226.9 Is a Binary System with a Pulsar-Like White Dwarf

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • N. G. Beskrovnaya,
  • N. R. Ikhsanov

摘要

Abstract

Parameters of the fast rotating magnetic white dwarf in the close low-mass binary system LAMOST J024048.51 \(+\) 195226.9 are discussed. Following an accretion-driven spin-up scenario we evaluate the surface magnetic field of the white dwarf to be about 35 MG. Under these conditions, in the current epoch the white dwarf should spin down by the pulsar mechanism at an expected rate of \(\sim 2\times 10^{-14}\) s s \({}^{-1}\) .