Time series analysis of bright galactic X-ray sources

W. C. Priedhorsky, Søren Brandt, Niels Lund

Research output: Contribution to journalJournal articleResearchpeer-review


We analyze 70 to 110 day data sets from eight bright galactic X-ray binaries observed by WATCH/Eureca, in search of periodic variations. We obtain new epochs for the orbital variation of Cyg X-3 and 4U 1700-37, and confirmation of a dip in Cyg X-1 at superior conjunction of the X-ray star. No evidence for variation at known and candidate periods is seen for Sco X-1, Cyg X-2, and GX 17+2. We set upper limits for variation at other frequencies in those three sources, GX 5-1, and GRS 1915+105.
Original languageEnglish
JournalAstronomy and Astrophysics
Pages (from-to)415-421
Publication statusPublished - 1995


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