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

Adapting to the Atmosphere Conference 2014

物理学;地球科学

Sánchez, L.J.^1 ; Avila, R.^2 ; Zúñiga, C.A.^2 ; Cruz-González, I.^1 ; Tapia-Rodríguez, J.J.^3 ; Avilés, J.L.^4

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

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

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/595/1/012031/pdf
DOI  :  10.1088/1742-6596/595/1/012031

来源: IOP

【 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.