Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles Article Faculty Publications -Articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Discovery of quasi-periodic oscillations in the persistent X-ray emission of accreting binary X-ray pulsar LMC X-4 Subject The topic of the resource pulsars: general; stars: neutron; X-rays: binaries; X-rays: individual: LMC X-4 Description An account of the resource We report the discovery of quasi-periodic oscillations (QPOs) in the high-mass X-ray binary (HMXB) pulsar LMC X-4 in its non-flaring (persistent) state using observations with XMM-Newton. In addition to the 74 mHz coherent pulsations, the persistent emission light curve shows a QPO feature in the frequency range of 20-30 mHz. Quasi-periodic flares have been previously observed from LMC X-4 in observations made with Rossi X-ray Timing Explorer (RXTE). However, this is the first time QPOs have been observed in the persistent emission observations of LMC X-4. QPOs in X-ray binaries are generally thought to be related to the rotation of the inhomogeneous matter distribution in the inner accretion disc. In HMXBs such as LMC X-4 where the compact object is a neutron star with a high magnetic field, the radius of the inner accretion disc is determined by the mass accretion rate and the magnetic moment of the neutron star. In such systems, the QPO feature, along with the pulse period and X-ray luminosity measurement, helps us to constrain the magnetic field strength of the neutron star. We use considerations of magnetospheric accretion to have an approximate value of the magnetic field strength of the neutron star in LMC X-4. 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society. Creator An entity primarily responsible for making the resource Rikame K.; Paul B.; Pradhan P.; Paul K.T. Source A related resource from which the described resource is derived Monthly Notices of the Royal Astronomical Society, Vol-512, No. 4, pp. 4792-4797. Publisher An entity responsible for making the resource available Oxford University Press Date A point or period of time associated with an event in the lifecycle of the resource 2022-01-01 Identifier An unambiguous reference to the resource within a given context <a href="https://doi.org/10.1093/mnras/stac729" target="_blank" rel="noreferrer noopener">https://doi.org/10.1093/mnras/stac729</a> <br /><br /><a href="https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128755945&amp;doi=10.1093%2Fmnras%2Fstac729&amp;partnerID=40&amp;md5=15c58fafe738f027fd1e887296dcddf0" target="_blank" rel="noreferrer noopener">https://www.scopus.com/inward/record.uri?eid=2-s2.0-85128755945&amp;doi=10.1093%2fmnras%2fstac729&amp;partnerID=40&amp;md5=15c58fafe738f027fd1e887296dcddf0</a> Rights Information about rights held in and over the resource All Open Access; Green Open Access Relation A related resource ISSN: 358711; CODEN: MNRAA Format The file format, physical medium, or dimensions of the resource Online Language A language of the resource English Type The nature or genre of the resource Article Coverage The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant Rikame K., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India, Astronomy and Astrophysics, Raman Research Institute, C. V. Raman Avenue Karnataka, Bengaluru, 560080, India; Paul B., Astronomy and Astrophysics, Raman Research Institute, C. V. Raman Avenue Karnataka, Bengaluru, 560080, India; Pradhan P., MIT Kavli Institute for Astrophysics and Space Research, 70 Vassar Street, Cambridge, 02139, MA, United States; Paul K.T., Department of Physics and Electronics, CHRIST (Deemed to be University), Karnataka, Bengaluru, 560029, India