New generation LOLAS: Redesign of an Optical Turbulence Profiler with High Altitude-Resolution

[摘要] We present the instrument and first results of a Low Layer SCIDAR (Scintillation Detection and Ranging), called new generation LOLAS (LOLAS 2), which consists of the optical coupling of a Ritchey-Chrétien telescope and an EMCCD camera, and allows the measurements of optical turbulence profiles in the atmosphere from ground level with high altitude-resolution. The system is designed for widely separated double star targets, which enables a high altitude resolution of 5 ≤ Δh ≤ 35 meters above the first kilometer , measured from ground level. The first results were obtained in June and November 2013, and May 2014 at the Observatorio Astronomico Nacional de San Pedro Mártir (OAN-SPM), México.

[发布机构] Instituto de Astronomía, UNAM, México D.F., Mexico^1;Centro de Física Aplicada y Tecnología Avanzada, UNAM Campus Juriquilla, Qro., México, Mexico^2;Instituto Tecnológico de Morelia, Mich. México, Mexico^3;Instituto Nacional de Astrofísica, Óptica y Electrónica, Pue., México, Mexico^4

[效力级别] 地球科学

[关键词] Altitude resolution;Double stars;Emccd cameras;Ground level;Measurements of;Optical couplings;Optical turbulence;Scintillation detection