The Thirty Meter Telescope (TMT) Project is engaged in a design and
development phase. TMT is proposed as a private-public partnership of
the California Institute of Technology and the University of
California (partners in the earlier CELT design study), AURA
(designers of the earlier GSMT concept), and the Canadian ACURA
consortium (designers of the VLOT concept). The partners are
developing a 30 meter diameter, finely segmented filled aperture
telescope with seeing-limited and diffraction-limited capabilities to
address the broad range of GSMT science goals. The paper will present
the status of the project development and telescope and instrument
G. Sanders (TMT Project), [79.03], AAS 205th Meeting, 9-13
The LAMA telescope is an array of eighteen fixed 10-meter
liquid-mirror (mercury) telescopes
of an overall diameter of 54 meters with a light-collecting
power equivalent to that of a 42-metre telescope.
An elementary telescope is a 10-m f/2.5 parabolic liquid
mirror, rotating about a vertical axis. Each telescope is
equipped with a rotating primary mirror, coated with a thin
layer of liquid mercury, and an optical tracking system which
relays light to the central beam combining room.
A system employs as Fizeau interferometer.
The Large Synoptic Survey Telescope (LSST) is a proposed
ground-based 8.4-meter, 10 square-degree-field telescope that
will provide digital imaging of faint astronomical objects
across the entire sky, night after night. In a relentless
campaign of 10-second exposures, LSST will cover the available
sky every three nights, opening a movie-like window on objects
that change or move on rapid timescales: exploding supernovae,
potentially hazardous near-Earth asteroids, and distant Kuiper
Belt Objects. The superb images from the LSST will also be used
to trace the apparent distortions in the shapes of remote
galaxies produced by lumps of Dark Matter, providing multiple
tests of the mysterious Dark Energy.