Matches in SemOpenAlex for { <https://semopenalex.org/work/W3101221567> ?p ?o ?g. }
Showing items 1 to 88 of
88
with 100 items per page.
- W3101221567 endingPage "L228" @default.
- W3101221567 startingPage "L225" @default.
- W3101221567 abstract "We report the discovery of millihertz (mHz) quasi-periodic oscillations (QPOs) and QPO-modulated pulsations during large X-ray flares from the high-mass X-ray binary pulsar LMC X-4 using data from the Rossi X-Ray Timing Explorer. The light curves of flares show that, in addition to ~74 mHz coherent pulsations, there exist two more time-varying temporal structures at frequencies of ~0.65-1.35 and ~2-20 mHz. These relatively long term structures appear in the power density spectra as mHz QPOs and also as well-developed sidebands around the coherent pulse frequency, indicating that the amplitudes of the coherent pulsation are modulated by those of the mHz QPOs. One interesting feature is that, while the first flare shows symmetric sidebands around the coherent pulse frequency, the second flare shows significant excess emission in the lower frequency sidebands due to the ~2-20 mHz QPOs. We discuss the origin of the QPOs using a combination of the beat-frequency model and a modified version of the Keplerian-frequency model. According to our discussion, it seems possible to attribute the origin of the ~0.65-1.35 and ~2-20 mHz QPOs to the beating between the rotational frequency of the neutron star and the Keplerian frequency of large accreting clumps near the corotation radius and to the orbital motion of clumps at Keplerian radii of (2-10) × 109 cm, respectively." @default.
- W3101221567 created "2020-11-23" @default.
- W3101221567 creator A5011104036 @default.
- W3101221567 creator A5022993973 @default.
- W3101221567 date "2001-03-10" @default.
- W3101221567 modified "2023-09-24" @default.
- W3101221567 title "Large X-Ray Flares from LMC X-4: Discovery of Millihertz Quasi-periodic Oscillations and Quasi-periodic Oscillation–Modulated Pulsations" @default.
- W3101221567 cites W1986212666 @default.
- W3101221567 cites W1991131215 @default.
- W3101221567 cites W2035521227 @default.
- W3101221567 cites W2088752759 @default.
- W3101221567 cites W2161346832 @default.
- W3101221567 cites W2762340391 @default.
- W3101221567 cites W2990716276 @default.
- W3101221567 cites W3098077017 @default.
- W3101221567 cites W3101813109 @default.
- W3101221567 cites W3102903271 @default.
- W3101221567 cites W3104358546 @default.
- W3101221567 doi "https://doi.org/10.1086/319160" @default.
- W3101221567 hasPublicationYear "2001" @default.
- W3101221567 type Work @default.
- W3101221567 sameAs 3101221567 @default.
- W3101221567 citedByCount "26" @default.
- W3101221567 countsByYear W31012215672015 @default.
- W3101221567 countsByYear W31012215672016 @default.
- W3101221567 countsByYear W31012215672017 @default.
- W3101221567 countsByYear W31012215672018 @default.
- W3101221567 countsByYear W31012215672019 @default.
- W3101221567 countsByYear W31012215672022 @default.
- W3101221567 crossrefType "journal-article" @default.
- W3101221567 hasAuthorship W3101221567A5011104036 @default.
- W3101221567 hasAuthorship W3101221567A5022993973 @default.
- W3101221567 hasBestOaLocation W31012215671 @default.
- W3101221567 hasConcept C110363677 @default.
- W3101221567 hasConcept C120665830 @default.
- W3101221567 hasConcept C121332964 @default.
- W3101221567 hasConcept C1276947 @default.
- W3101221567 hasConcept C130726490 @default.
- W3101221567 hasConcept C178635117 @default.
- W3101221567 hasConcept C180205008 @default.
- W3101221567 hasConcept C192887742 @default.
- W3101221567 hasConcept C2778439541 @default.
- W3101221567 hasConcept C2779588948 @default.
- W3101221567 hasConcept C3019213175 @default.
- W3101221567 hasConcept C38652104 @default.
- W3101221567 hasConcept C41008148 @default.
- W3101221567 hasConcept C44870925 @default.
- W3101221567 hasConcept C4839761 @default.
- W3101221567 hasConcept C54355233 @default.
- W3101221567 hasConcept C86803240 @default.
- W3101221567 hasConceptScore W3101221567C110363677 @default.
- W3101221567 hasConceptScore W3101221567C120665830 @default.
- W3101221567 hasConceptScore W3101221567C121332964 @default.
- W3101221567 hasConceptScore W3101221567C1276947 @default.
- W3101221567 hasConceptScore W3101221567C130726490 @default.
- W3101221567 hasConceptScore W3101221567C178635117 @default.
- W3101221567 hasConceptScore W3101221567C180205008 @default.
- W3101221567 hasConceptScore W3101221567C192887742 @default.
- W3101221567 hasConceptScore W3101221567C2778439541 @default.
- W3101221567 hasConceptScore W3101221567C2779588948 @default.
- W3101221567 hasConceptScore W3101221567C3019213175 @default.
- W3101221567 hasConceptScore W3101221567C38652104 @default.
- W3101221567 hasConceptScore W3101221567C41008148 @default.
- W3101221567 hasConceptScore W3101221567C44870925 @default.
- W3101221567 hasConceptScore W3101221567C4839761 @default.
- W3101221567 hasConceptScore W3101221567C54355233 @default.
- W3101221567 hasConceptScore W3101221567C86803240 @default.
- W3101221567 hasIssue "2" @default.
- W3101221567 hasLocation W31012215671 @default.
- W3101221567 hasOpenAccess W3101221567 @default.
- W3101221567 hasPrimaryLocation W31012215671 @default.
- W3101221567 hasRelatedWork W1829155161 @default.
- W3101221567 hasRelatedWork W1969625373 @default.
- W3101221567 hasRelatedWork W2029125027 @default.
- W3101221567 hasRelatedWork W2036205877 @default.
- W3101221567 hasRelatedWork W2095046165 @default.
- W3101221567 hasRelatedWork W3036272863 @default.
- W3101221567 hasRelatedWork W3099768294 @default.
- W3101221567 hasRelatedWork W3101221567 @default.
- W3101221567 hasRelatedWork W3106158456 @default.
- W3101221567 hasRelatedWork W4296779935 @default.
- W3101221567 hasVolume "549" @default.
- W3101221567 isParatext "false" @default.
- W3101221567 isRetracted "false" @default.
- W3101221567 magId "3101221567" @default.
- W3101221567 workType "article" @default.