T. Chandrasekhar
Astronomy & Astrophysics Division, Physical Research
Laboratory, Ahmedabad 380 009, India
Abstract. A brief review of the lunar occultation program in the near
infrared for high angular resolution study of bright IR sources carried
out at
PRL in the last decade is presented. The development of the two channel
Fast IR photometer is described. Major results pertaining to
circumstellar
dust structures surrounding occulted objects like IRC+10216 and WR104
are
outlined. The challenges for the future in observing lunar occultations
in the L
band and in the use of IR arrays for occultation work are discussed.
Keywords: Lunar occultation, infrared, late type stars, dust shells