Conceptual study for a sub-pupil instrument having 4 high order adaptive optics path for parallel multi-wavelength high contrast imaging, and medium resolution spectrometry

摘要

We present the concept of an instrument that will create 4 circular sub-pupils of 3 m in diameter. Each sub-pupil pathwill be corrected by a high order adaptive optics system (SR~80% in H) without spider and M2 obstruction. These fourindependent channels, obviously all pointed towards the same field, allows the possibility of covering totally differentparts of the electromagnetic spectrum simultaneously without compromising Signal to Noise Ratio. Each channel can bededicated to very specialized but complementary purposes: high contrast imaging, pseudo-wide field imaging, highprecision multi-color photometry, medium-resolution spectroscopy, polarimetry and sparse-aperture masking.© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.