{"paper":{"title":"High-resolution X-ray spectroscopy of the ultracompact LMXB pulsar 4U 1626-67","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), Adrienne M. Juett (3), Deepto Chakrabarty (1, Jean Cottam (4) ((1) Kavli Institute for Astrophysics, Miriam I. Krauss (1, MIT; (2) Department of Physics, MIT; (3) Department of Astronomy, NASA Goddard Space Flight Center), Norbert S. Schulz (1), Space Research, University of Virginia; (4) Laboratory for High Energy Astrophysics","submitted_at":"2006-11-27T21:04:03Z","abstract_excerpt":"[abridged] We report results from four recent observations of the ultracompact LMXB pulsar 4U 1626-67. All the observations obtained high-resolution X-ray spectra of the system, two from the Chandra X-ray Observatory using the HETGS, and two from the XMM-Newton Observatory using the RGS as well as the EPIC PN and MOS. These data allow us to study in detail the prominent Ne and O emission line complexes which make 4U 1626-67 unique among LMXBs. The observations were spaced over a period of 3 years for a total observing time of 238 ks, allowing us to monitor the line regions as well as the overa"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0611823","kind":"arxiv","version":1},"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"}