X-ray flaring in LMXBs as a diagnostic of strong changes in the inner disk

Monika Balucinska-Church, Michael Church, A Szostek

Research output: Contribution to journalArticle

1 Citation (Scopus)


We present results from Rossi-XTE and BeppoSAX on X-ray flaring in three sources: Sco X-1, GX 349+2 and X 1624-490 which demonstrate major changes in the neutron star blackbody emission during flaring. In X 1624490 and GX 349+2, there are dramatic decreases in the neutron star emitting area while the blackbody kT rises during flaring. In Sco X-1, with much higher luminosity, it appears that a similar decrease in emitting area had taken place before the source arrived at the Flaring Branch. We suggest that these changes in all 3 sources are due to a previously unrecognized Eddington limit effect in disk accretion due to the radiation pressure of the neutron star as flaring progresses, leading to major changes at the inner disk.
Original languageEnglish
Pages (from-to)576-579
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Publication statusPublished - 1 Jan 2004


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