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Abstract <p>Using the <i>Mikhail Pavlinsky</i> ART-XC onboard the <i>SRG</i> observatory we have detected, for the first time, X-ray pulsations with a period of <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11443_2025_11361_Article_IEq1.gif" Format="GIF" Height="14" Rendition="HTML" Resolution="72" Type="Linedraw" Width="44" /> </InlineMediaObject> <EquationSource Format="TEX">\(\simeq 106\)</EquationSource> <!--Letters2570019Mereminskii-m1--> </InlineEquation> s from the poorly-studied high-mass X-ray binary RX J0535.0-6700 located in the Large Magellanic Cloud (LMC), thus proving that the accretor is a neutron star with stong magnetic field. Pulsations with similar period were also found in archival archival data from <i>Chandra</i> and XMM-<i>Newton</i> telescopes. Using photometry from <i>WISE</i> we shown that the source demonstrate significant variability in IR during the last twenty years, which could be caused by a secular evolution of the decretion disk. This discovery makes RX J0535.0-6700 another member of the large family of X-ray pulsars with Be-type companions in the LMC.</p>

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SRG/ART-XC Discovery of Pulsations from RX J0535.0-6700: Another X-ray Pulsar in the LMC

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • I. A. Mereminskiy,
  • A. S. Gorban,
  • Yu. S. Klein,
  • E. A. Ushakova,
  • A. N. Semena,
  • A. A. Lutovinov,
  • A. Yu. Tkachenko,
  • S. V. Molkov

摘要

Abstract

Using the Mikhail Pavlinsky ART-XC onboard the SRG observatory we have detected, for the first time, X-ray pulsations with a period of \(\simeq 106\) s from the poorly-studied high-mass X-ray binary RX J0535.0-6700 located in the Large Magellanic Cloud (LMC), thus proving that the accretor is a neutron star with stong magnetic field. Pulsations with similar period were also found in archival archival data from Chandra and XMM-Newton telescopes. Using photometry from WISE we shown that the source demonstrate significant variability in IR during the last twenty years, which could be caused by a secular evolution of the decretion disk. This discovery makes RX J0535.0-6700 another member of the large family of X-ray pulsars with Be-type companions in the LMC.