The Subaru Seminar is
usually held in Room 104 of the Hilo Base Facility, adjacent
to the main lobby. Everyone is welcome to attend. If you are
interested in giving a seminar, please contact Subaru seminar organizers
(Tadayuki Kodama, Kumiko S. Usuda, Naoyuki Tamura, Tomonori Usuda)
by email : sseminar_at_subaru.naoj.org (please change"_at_" to @).
September 12, Monday, at 11:00 am
" LO in LT: Lunar Occultations in Large Telescopes "
(Universit of Barcelona)
Lunar occultations (LO), the simplest and cheapest high angular
resolution technique, has largely extended its potential science cases
thanks to that NIR arrays at 8m class telescopes can now image at a
few milliseconds rate.
Since Mar 2006 these kind of observations are being regularly
conducted at VLT/ISAAC, achieving a limiting angular resolution of
less than 1 mas and a limiting magnitude of K=12.5 mag, which
constitutes a unique combination among other techniques.
I will overview the basics behind the LO technique. I will also
present the LO runs conducted at the VLT/ISAAC so far and summarize
their performance. Some representative results will be shown, in
fields such as detection of very close and faint binaries components,
direct meaurements of stellar diameters, detection of sources with
extended emission (circumstellar shells, YSOs, masers, etc.), and
interferometric calibrators database feed, etc.
Seminars are also held at JAC,