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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20100720T000000
DTEND;TZID=Atlantic/Canary:20100720T010000
UID:iactalks-209
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/209
CREATED:2010-07-20T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The Bowen Survey; detecting donor star signatures in low mass X-ray
  binaries                  
DESCRIPTION:The Bowen Survey; detecting donor star signatures in low mass X
 -ray binaries                  \nDr. Remon Cornelisse\n\nFor most persiste
 nt low mass X-ray binaries (LMXBs) and transients in outbursts the optical
  emission is dominated by reprocessing of the X-rays in the outer accretio
 n disk. This has severely hampered any dynamical studies and thereby our k
 nowledge of their system parameters. A new avenue opened thanks to the dis
 covery of narrow high-excitation emission components arising from the irra
 diated companion star. These lines are most prominent in the Bowen region 
 (a blend of N III and C III lines between 4630 and 4650 Å).  In this
  talk I will discuss this new technique, give an overview of the main resu
 lts of our survey on the optically brightest LMXBs, and discuss the implic
 ations for their system parameters. Furthermore, I will point out the main
  limitations of this technique and how they might be overcome.
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