Matches in SemOpenAlex for { <https://semopenalex.org/work/W1507738963> ?p ?o ?g. }
Showing items 1 to 73 of
73
with 100 items per page.
- W1507738963 abstract "XTE J1946+274 = GRO J1944+26 is a 15.8-s X-ray pulsar discovered simultaneously by the Rossi X-ray Timing Explorer (RXTE) and the Burst and Transient Source Experiment (BATSE) in September 1998. Follow-up optical/IR observations resulted in the discovery of a Be star companion. Our pulse timing analysis of BATSE and RXTE data indicates that the orbital period is approximately 169 days. Since its discovery in 1998, XTE J1946+274 has undergone 13 outbursts. These outbursts axe not regularly spaced. They occur approximately twice per orbit and are not locked in orbital phase, unlike most Be/X-ray transient systems. A possible explanation for this is a global-one armed oscillation or density perturbation propagating rapidly in the Be star's disk. We will investigate radial velocity variations in the central peak of the H-alpha line to look for evidence of such a perturbation. From 2001 March-September, we regularly monitored XTE J1946+274 with the RXTE PCA. We will demonstrate that the spectrum appears to be varying with orbital phase, based on the 2001 and 1998 RXTE PCA observations. We will also present histories of pulsed frequency and flux." @default.
- W1507738963 created "2016-06-24" @default.
- W1507738963 creator A5001589626 @default.
- W1507738963 creator A5011231797 @default.
- W1507738963 creator A5022118991 @default.
- W1507738963 creator A5047547447 @default.
- W1507738963 creator A5083151318 @default.
- W1507738963 date "2002-01-01" @default.
- W1507738963 modified "2023-09-27" @default.
- W1507738963 title "XTE J1946+274: An Enigmatic X-Ray Pulsar" @default.
- W1507738963 hasPublicationYear "2002" @default.
- W1507738963 type Work @default.
- W1507738963 sameAs 1507738963 @default.
- W1507738963 citedByCount "0" @default.
- W1507738963 crossrefType "journal-article" @default.
- W1507738963 hasAuthorship W1507738963A5001589626 @default.
- W1507738963 hasAuthorship W1507738963A5011231797 @default.
- W1507738963 hasAuthorship W1507738963A5022118991 @default.
- W1507738963 hasAuthorship W1507738963A5047547447 @default.
- W1507738963 hasAuthorship W1507738963A5083151318 @default.
- W1507738963 hasConcept C110363677 @default.
- W1507738963 hasConcept C121332964 @default.
- W1507738963 hasConcept C1276947 @default.
- W1507738963 hasConcept C150846664 @default.
- W1507738963 hasConcept C177918212 @default.
- W1507738963 hasConcept C191897082 @default.
- W1507738963 hasConcept C192562407 @default.
- W1507738963 hasConcept C192887742 @default.
- W1507738963 hasConcept C2778439541 @default.
- W1507738963 hasConcept C32224563 @default.
- W1507738963 hasConcept C44870925 @default.
- W1507738963 hasConcept C54355233 @default.
- W1507738963 hasConcept C68709404 @default.
- W1507738963 hasConcept C86803240 @default.
- W1507738963 hasConceptScore W1507738963C110363677 @default.
- W1507738963 hasConceptScore W1507738963C121332964 @default.
- W1507738963 hasConceptScore W1507738963C1276947 @default.
- W1507738963 hasConceptScore W1507738963C150846664 @default.
- W1507738963 hasConceptScore W1507738963C177918212 @default.
- W1507738963 hasConceptScore W1507738963C191897082 @default.
- W1507738963 hasConceptScore W1507738963C192562407 @default.
- W1507738963 hasConceptScore W1507738963C192887742 @default.
- W1507738963 hasConceptScore W1507738963C2778439541 @default.
- W1507738963 hasConceptScore W1507738963C32224563 @default.
- W1507738963 hasConceptScore W1507738963C44870925 @default.
- W1507738963 hasConceptScore W1507738963C54355233 @default.
- W1507738963 hasConceptScore W1507738963C68709404 @default.
- W1507738963 hasConceptScore W1507738963C86803240 @default.
- W1507738963 hasLocation W15077389631 @default.
- W1507738963 hasOpenAccess W1507738963 @default.
- W1507738963 hasPrimaryLocation W15077389631 @default.
- W1507738963 hasRelatedWork W1578129675 @default.
- W1507738963 hasRelatedWork W1971116307 @default.
- W1507738963 hasRelatedWork W1992909974 @default.
- W1507738963 hasRelatedWork W2008715267 @default.
- W1507738963 hasRelatedWork W2033155973 @default.
- W1507738963 hasRelatedWork W2038688646 @default.
- W1507738963 hasRelatedWork W2041894941 @default.
- W1507738963 hasRelatedWork W2047467742 @default.
- W1507738963 hasRelatedWork W2094980605 @default.
- W1507738963 hasRelatedWork W2293113189 @default.
- W1507738963 hasRelatedWork W2963401441 @default.
- W1507738963 hasRelatedWork W2964037127 @default.
- W1507738963 hasRelatedWork W2964334228 @default.
- W1507738963 hasRelatedWork W3100395570 @default.
- W1507738963 hasRelatedWork W3100603608 @default.
- W1507738963 hasRelatedWork W3100966690 @default.
- W1507738963 hasRelatedWork W3103916635 @default.
- W1507738963 hasRelatedWork W3104074961 @default.
- W1507738963 isParatext "false" @default.
- W1507738963 isRetracted "false" @default.
- W1507738963 magId "1507738963" @default.
- W1507738963 workType "article" @default.