{"paper":{"title":"Timing Studies on X-Per and Discovery of its Transient QPO Feature","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"(2) Baskent University, (3) NASA GSFC, A. Baykal (1), Ankara, Greenbelt, J. Swank (3) ((1) METU, MD, M.M. Serim (1), S.C. Inam (2), S. Sahiner (1), Turkey, USA), Z. Acuner (1)","submitted_at":"2014-05-15T11:28:17Z","abstract_excerpt":"We present timing analysis of {\\emph{RXTE}}-PCA and {\\emph{INTEGRAL}}-ISGRI observations of X Per between 1998 and 2010. All pulse arrival times obtained from the {\\emph{RXTE}}-PCA observations are phase connected and a timing solution is obtained using these arrival times. We update the long-term pulse frequency history of the source by measuring its pulse frequencies using {\\emph{RXTE}}-PCA and {\\emph{INTEGRAL}}-ISGRI data. From the {\\emph{RXTE}}-PCA data, the relation between frequency derivative and X-ray flux suggests accretion via the companion's stellar wind. On the other hand, detectio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.3803","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}