Work

High-accuracy differential image motion monitor measurements for the Thirty Meter Telescope site testing program

Year: 2007

Type: article

Abstract: Differential image motion monitors (DIMMs) have become the industry standard for astronomical site characterization. The calibration of DIMMs is generally considered to be routine, but we show that particular care must be paid to this issue if high-accuracy measurements are to be achieved. In a side by side comparison of several DIMMs, we demonstrate that with proper care we can achieve an agreement between the seeing measurements of two DIMMS operating under the same conditions to better than +/-0.02 arc sec.

Source: Applied Optics

DOI: 10.1364/ao.46.006460

Authors: Lianqi Wang, Matthias Schöck, Gary Chanan, Warren Skidmore, Robert Blum, Edison Bustos, Sebastian Els, Reed Riddle, Juan Seguel, Tony Travouillon, Joselino Vasquez, David Walker, Paul Gillett

Institutions: University of California, Irvine, University of California System, Cerro Tololo Inter-American Observatory

Language: English

Topic: Adaptive optics and wavefront sensing

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, Gordon and Betty Moore Foundation, California Institute of Technology, Association of Canadian Universities for Research in Astronomy, Ontario Ministry of Research and Innovation

OpenAlex ID: W2004136033

FWCI: 0.906

Cites: 4

Cited by: 15

Related to: 10