Each frequency band has a field of view of approximately 22' Ã- 26'.
Each detector array is fed by free space millimeter-wave optics. The receiver features three 1000-element arrays of transition-edge sensor bolometers for observations at 148 GHz, 218 GHz, and 277 GHz. A 6 m off-axis Gregorian telescope feeds a new type of cryogenic receiver, the Millimeter Bolometer Array Camera. The instrument is located on Cerro Toco in the Atacama Desert, at an altitude of 5190 m. The Atacama Cosmology Telescope was designed to measure small-scale anisotropies in the cosmic microwave background and detect galaxy clusters through the Sunyaev-Zel'dovich effect. Overview of the Atacama Cosmology Telescope: Receiver, Instrumentation, and Telescope Systems
Using tactile images and sound, the intention is to create an experience equivalent to that of a student with full sight. The current focus is converting the labs to accommodate visually impaired students. The goal is to proactively adapt the lab and telescope facilities to accommodate all students with disabilities. Many of the courses involve labs that use the 16-inch DFM Clay Telescope for night-time observations and the heliostat for observing the Sun. Harvard University has a growing astronomy program that offers various courses to the undergraduate concentrators, secondaries and non-majors. In the last year we have begun observations with new local oscillators for the 1.3 and 1.5 THz atmospheric windows.Īstronomy for Everyone: Harvard's Move Toward an All-Inclusive Astronomy Lab and Telescope
Initial observations were limited to the 850 GHz and 1.03 THz windows due to the availability of solid state local oscillators. The capabilities of the RLT have been expanding since observations began in late 2002. The Receiver Lab Telescope (RLT) is a groundbased terahertz telescope it is currently the only instrument producing astronomical data between 1 and 2 THz. We also present initial observations of and discuss the implications of this non-detection for the standard estimates of the strength of this line. We report on our first measurements o the high CO transitions, which represent the highest frequency detection ever made from the ground. The Receiver Lab Telescope (RLT) is a ground-based terahertz telescope it is currently the only instrument producing astronmical data between 1 and 2 THz. Blundell, Raymond Tong, Edward Paine, Scott N.
Observations in the 1.3 and 1.5 THz atmospheric windows with the Receiver Lab Telescope