Introduction Site Telescope Images Science National Academies Decadal Review 2010 Instrumentation People Outreach / Education LMT Observatory News
The LMT Book Memos / Reports

Project Overview

The Large Millimeter Telescope (LMT), designed by MAN Technologie, is a 50-m (currently, 32-m) diameter single-dish telescope optimized for astronomical observations at millimeter wavelengths (0.85 mm < λ < 4 mm). The LMT Project is a bi-national collaboration between México and the U.S.A. The institutions leading this effort are the Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) and the University of Massachusetts at Amherst (UMass) respectively.

A principal scientific goal of the LMT is to understand the physical process of structure formation and its evolutionary history throughout the Universe. More specifically the LMT has the capability to investigate subjects as diverse as the constLMT site locationitution of comets and planetary atmospheres, the formation of extra-solar planets and the birth and evolution of stars, the hierarchical growth of galaxies and clusters and their large-scale distribution, as well as the cosmic microwave background and its anisotropies.

The selected telescope site of Volcán Sierra Negra (lat. ~ +19 °), situated ~ 100 km east of INAOE, in the Mexican state of Puebla, is at an altitude of 4,600 m (15,000 ft.) and provides excellent millimeter wavelength transmission throughout the year.

The LMT is aLMT Antenna: Daten open-air telescope which has been designed to provide a pointing accuracy better than 1 arcsec under median wind-loading conditions (v < 5 m/s).  Following the characterization and correction of the telescope surface under the typical deforming effects of wind, gravity and temperature gradients, an r.m.s. accuracy of 70 micron is expected.  Consequently the LMT will be the largest and most sensitive single-aperture telescope operating at  wavelengths of  ~0.85mm  to 4 mm.

The combination of the large collecting-area and available field-of-view (up to 8 arcminutes in diameter) will provide the LMT with extremely fast mapping-speeds, an advantage that will be exploited by the suite of first-light instruments that include a variety of continuum array cameras, heterodyne arrays and wide-band receivers, and a large flexible auto-correlator spectrometer. An on-going program of instrument development and collaborative access to the telescope for guest instruments will ensure that the LMT remains a leading millimeter-wavelength facility.