Abstract
The effect of atmospheric turbulence is gentler at infrared wavelengths than in visible regime. Hence adaptive optics (AO) delivers better performance in the infrared regime. Robotic Adaptive Optics (Robo-AO) is an AO system for medium-sized telescopes jointly built by Caltech, USA and IUCAA, India. It works with minimal overheads and provides good sky coverage in both visible and infrared regime. The first version of Robo-AO does not have a high-quality NIR camera. For the second version called iRobo-AO, an NIR camera was developed at IUCAA to accommodate AO-corrected \(1.0^{\prime }\) field-of-view in near-infrared bands. It can be used as a science camera as well as a tip-tilt camera. Here we describe the salient features of the NIR camera like optics, optomechanical design, detector control system etc.
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Notes
It is an H2RG detector with \(2\ \hbox {k} \times 2\ \hbox {k}\) pixels, out of which only \(1\ \hbox {k} \times 1\ \hbox {k}\) is science grade. Teledyne does not make 1 k x 1 k sensors routinely anymore, and a special order would have long lead time for delivery.
References
Arsenault R., Madec P.-Y., Paufique J. et al. 2014, Proceedings of SPIE, 9148, 914802
Babcock H. W. 1953, PASP, 65, 229
Baranec C., Riddle R., Law N. M. et al. 2013, J. Vibration Engineering, vol. 72, https://doi.org/10.3991/5002/
Baranec C., Dekany R., Kulkarni S. R. et al. 2009, astro2010: The Astronomy and Astrophysics Decadal Survey, 2010
Burse M., Chattopadhyay S., Ramaprakash A. N. et al. 2016a, Proceedings of SPIE, 9915, 991520
Burse M., Ramaprakash A. N., Chordia P. et al. 2016b, Proceedings of SPIE, 9915, 991526
Goodman J. W. 1996, Introduction to Fourier Optics, McGraw-Hill
Hardy J. W. (ed.) 1998, Adaptive Optics for Astronomical Telescopes, Oxford University Press
Hayano Y., Takami H., Guyon O. et al. 2008, Proceedings of SPIE, 7015, 701510
Jensen-Clem R., Duev D. A., Riddle R. et al. 2018, AJ, 155, 32
Law N. M. 2007, The Observatory, 127, 71
Linnik V. P. 1994, European Southern Observatory Conference and Workshop Proceedings, vol. 48, p. 535 - translated in English; published 1957
Nasibov A., Kholmatov A., Nasibov H., Hacizade F. 2011, Investigation of a CCD modulation transfer function using the speckle method at different laser wavelengths and sub-windowing options, Int. J. Metrol. Qual. Eng., vol. 2(1), 25–30
Neichel B., Rigaut F., Vidal F. et al. 2014, MNRAS, 440, 1002
Nieto J.-L., Thouvenot E. 1991, A&A, 241, 663
Paul J., Das H. K., Ramaprakash A. N., Burse M., Chordia P., Chillal K., Datir G., Joshi B., Khodade P., Kohok A., Mestry V., Punnadi S., Rajarshi C., Shekhar C. 2019, Design and development of an adaptive optics system in visible and near-infrared for Inter-University Centre for Astronomy and Astrophysics 2-meter telescope, J. Astron. Telesc. Instrum. Syst., 5(3), 039002, https://doi.org/10.1117/1.JATIS.5.3.039002
Paul J., Ramaprakash A. N., Das H. et al. 2018, Adaptive Optics Systems VI, 10703, 1070368, (SPIE) Conference Series
Plesseria J. Y., Henrist M., Doyle D. 2001, Fourth International Symposium Environmental Testing for Space Programmes, 467, 129
Ramaprakash A., Burse M., Chordia P. et al. 2010, Proceedings of SPIE, 7742, 77422I
Raskin G., Morren J., Pessemier W., Perez Padilla J., Vandersteen J. 2013, arXiv:1311.0685
Riddle R. L., Burse M. P., Law N. M. et al. 2012, Proceedings of SPIE, 8447, 84472O
Salama M., Baranec C., Jensen-Clem R. et al. 2016, Proceedings of SPIE, 9909, 99091A
Wizinowich P., Dekany R., Gavel D. et al. 2008, Proceedings of SPIE, 7015, 701511
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Paul, J., Ramaprakash, A.N., Das, H.K. et al. A near-infrared camera for iRobo-AO on the IUCAA 2-m telescope. J Astrophys Astron 40, 28 (2019). https://doi.org/10.1007/s12036-019-9595-0
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DOI: https://doi.org/10.1007/s12036-019-9595-0