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Discovery of an Outbursting 12.8 Minute Ultracompact X-Ray Binary

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dc.abstract.enWe report the discovery of OGLE-UCXB-01, a 12.8 minute variable object located in the central field of Galactic bulge globular cluster Djorg 2. The presence of frequent, short-duration brightenings at such an ultrashort period in long-term OGLE photometry together with the blue color of the object in Hubble Space Telescope images and the detection of moderately hard X-rays by Chandra observatory point to an ultracompact X-ray binary system. The observed fast period decrease makes the system a particularly interesting target for gravitational-wave detectors such as the planned Laser Interferometer Space Antenna. Based on observations obtained with the 1.3-m Warsaw telescope at the Las Campanas Observatory of the Carnegie Institution for Science and archival data from NASA/ESA Hubble Space Telescope under program GO 14074 and Chandra X-ray Observatory under program GO 17844.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorPietrukowicz, Paweł
dc.contributor.authorMróz, Przemysław
dc.contributor.authorUdalski, Andrzej
dc.contributor.authorSoszyński, Igor
dc.contributor.authorSkowron, Jan
dc.date.accessioned2024-01-24T21:54:36Z
dc.date.available2024-01-24T21:54:36Z
dc.date.copyright2019-08-22
dc.date.issued2019
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number2
dc.description.versionORIGINAL_AUTHOR
dc.description.volume881
dc.identifier.doi10.3847/2041-8213/AB372D
dc.identifier.issn2041-8205
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/104972
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2019ApJ...881L..41P
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofAstrophysical Journal Letters
dc.relation.pagesL41
dc.rightsOther
dc.sciencecloudnosend
dc.titleDiscovery of an Outbursting 12.8 Minute Ultracompact X-Ray Binary
dc.typeJournalArticle
dspace.entity.typePublication