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, Nagayoshi Ohashi, Tomonori Usuda)
by email : sseminar_at_subaru.naoj.org (please change"_at_" to @).
Feb 11, Monday, at 11:00 am
" Lyman `bump' galaxies: Strong Lyman continuum emitters "
(Osaka Sangyo University)
Motivated by the discovery of galaxies emitting surprisingly
strong Lyman continuum (lambda_rest<900A), I have proposed a
new spectral model of galaxies, taking into account the escape
of stellar and nebular Lyman continua from galaxies. Beyond
the classical Stromgren sphere model, I considered matter bounded
nebulae and the escape of nebular recombination Lyman continuum.
The model predicts a spectral bump just below the Lyman limit,
not the break usually expected. Even with this Lyman "bump" model,
however, the observed strength of the Lyman continuum of some
galaxies may require unusual stellar populations which emit more
strong Lyman continuum such as extremely metal-poor or even
Seminars are also held at JAC,