Proceedings ArticleDOI
Activity status and future plans for the Optical Laboratory of the National Astronomical Research Institute of Thailand
Christophe Buisset,Saran Poshyachinda,Boonrucksar Soonthornthum,Apirat Prasit,Mary Angelie Alagao,Piyamas Choochalerm,Weerapot Wanajaroen,Thierry Lépine,Yves Rabbia,S. Aukkaravittayapun,Apichat Leckngam,Griangsak Thummasorn,Surin Ngernsujja,Anuphong Inpan,Pimon Kaewsamoet,Esther Lhospice,Panomsak Meemon,Pornapa Artsang,Kajpanya Suwansukho,Wichit Sirichote,Jitsupa Paenoi +20 more
- Vol. 10714, pp 1071407
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TLDR
The National Astronomical Research Institute of Thailand (NARIT) has developed since June 2014 an optical laboratory that comprises all the activities and facilities related to the research and development of new instruments in the following areas: telescope design, high dynamic and high resolution imaging systems and spectrographs as mentioned in this paper.Abstract:
The National Astronomical Research Institute of Thailand (NARIT) has developed since June 2014 an optical laboratory that comprises all the activities and facilities related to the research and development of new instruments in the following areas: telescope design, high dynamic and high resolution imaging systems and spectrographs. The facilities include ZEMAX and Solidwork software for design and simulation activities as well as an optical room with all the equipment required to develop optical setup with cutting-edge performance. The current projects include: i) the development of a focal reducer for the 2.3 m Thai National Telescope (TNT), ii) the development of the Evanescent Wave Coronagraph dedicated to the high contrast observations of star close environment and iii) the development of low resolution spectrographs for the Thai National Telescope and for the 0.7 m telescopes of NARIT regional observatories. In each project, our activities start from the instrument optical and mechanical design to the simulation of the performance, the development of the prototype and finally to the final system integration, alignment and tests. Most of the mechanical parts are manufactured by using the facilities of NARIT precision mechanical workshop that includes a 3-axis Computer Numerical Control (CNC) to machine the mechanical structures and a Coordinate Measuring Machine (CMM) to verify the dimensions. In this paper, we give an overview of the optical laboratory activities and of the associated facilities. We also describe the objective of the current projects, present the specifications and the design of the instruments and establish the status of development and we present our future plans.read more
Citations
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Journal ArticleDOI
HiFLEx—A Highly Flexible Package to Reduce Cross-dispersed Echelle Spectra
Ronny Errmann,Neil Cook,Guillem Anglada-Escudé,Sirinrat Sithajan,David Mkrtichian,Eugene Semenko,William Eugene Martin,Tabassum S. Tanvir,Fabo Feng,Fabo Feng,J. L. Collett,Hugh R. A. Jones +11 more
TL;DR: In this article, the Astronomical Society of the Pacific (ASPCA) has published a paper on the use of the Creative Commons Attribution 3.0 (CC3.0) license for astronomy.
Proceedings ArticleDOI
EXOhSPEC folded design optimization and performance estimation
Esther Lhospice,Christophe Buisset,Hugh R. A. Jones,William Eugene Martin,Ronny Errmann,Sirinrat Sithajan,Chantira Boonsri,Piyamas Choochalerm,Guillem Anglada-Escudé,David A. Campbell,Mary Angelie Alagao,Jitsupa Paenoi,Apirat Prasit,Thirasak Panyaphirawat,S. Rattanasoon,Apichat Leckngam,David Mkrtichian,S. Aukkaravittayapun +17 more
TL;DR: The EXOplanet high resolution SPECtrograph (EXOhSPEC) instrument is an echelle spectrograph dedicated to the detection of exoplanets by using the radial velocity method using 2m class telescopes and the theoretical image quality is close to the diffraction limit.
Journal ArticleDOI
The Pre-He White Dwarfs in Eclipsing Binaries. II. WASP 0843–11
Kyeongsoo Hong,Jae Woo Lee,Jae-Rim Koo,Jang-Ho Park,Pakakaew Rittipruk,Hye-Young Kim,Chanisa Kanjanasakul,Cheongho Han +7 more
TL;DR: In this article, the authors reported the first light curves and high-resolution spectra of the post-mass transfer binary star WASP 0131+28 to study the absolute properties of extremely low-mass white dwarfs.
Journal ArticleDOI
HiFLEx -- a highly flexible package to reduce cross-dispersed echelle spectra
Ronny Errmann,Neil Cook,Guillem Anglada-Escudé,Sirinrat Sithajan,David Mkrtichia,Eugene Semenko,William Eugene Martin,Tabassum S. Tanvir,Fabo Feng,J. L. Collett,Hugh R. A. Jones +10 more
TL;DR: HiFLEx can be used to determine radial velocities and is designed to use the TERRA package but can also control the radial velocity packages such as CERES and SERVAL to perform the radial Velocity analysis.
Proceedings ArticleDOI
Thai National Telescope beam simulator testbed development status
TL;DR: In this article, an optical setup was developed to simulate in laboratory conditions the geometry of the TNT output beam, in order to carefully prepare and to improve the efficiency of the test to be performed at the TNT focal plane level.
References
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Journal ArticleDOI
ULTRASPEC: a high-speed imaging photometer on the 2.4-m Thai National Telescope
V. S. Dhillon,T. R. Marsh,D. C. Atkinson,Naidu Bezawada,Madelon C. P. Bours,Chris M. Copperwheat,T. Gamble,L. K. Hardy,R. D. G. Hickman,P. Irawati,D. J. Ives,P. Kerry,A. Leckngam,S. P. Littlefair,S. A. McLay,Kieran O'Brien,P. T. Peacocke,Saran Poshyachinda,Andrea Richichi,Boonrucksar Soonthornthum,A. J. A. Vick +20 more
TL;DR: The ULTRASPEC is a high-speed imaging photometer mounted permanently at one of the Nasmyth foci of the 2.4m Thai National Telescope (TNT) on Doi Inthanon, Thailand's highest mountain this paper.
Proceedings ArticleDOI
Progress on the prevention of stray light and diffraction effects on the Thai National Telescope
Christophe Buisset,Apirat Prasit,Apichat Leckngam,Thierry Lépine,Saran Poshyajinda,Boonrucksar Soonthornthum,Puji Irawati,Andrea Richichi,Utane Sawangwit,V. S. Dhillon,V. S. Dhillon,L. K. Hardy +11 more
TL;DR: In this paper, an annular mask along the edge of the primary mirror of the 2.4m Thai National Telescope (TNT) was installed to suppress the bright spikes spread from bright stellar images over few arcminutes in the focal plane, and the images taken during observations in bright moon conditions were contaminated by high levels of stray light.
Journal ArticleDOI
Study of a coronagraphic mask using evanescent waves.
Christophe Buisset,Yves Rabbia,Thierry Lépine,Mary-Angelie Alagao,Elsa Ducrot,Saran Poshyachinda,Boonrucksar Soonthornthum +6 more
TL;DR: A theoretical and experimental study of the EvWaCo coronagraphic mask is presented and it is shown that this mask is partially achromatic and provides a contrast down to a few 10-6 at an angular distance of about ten Airy radii.
Proceedings ArticleDOI
Optical and mechanical design and characterization of the new baffle for the 2.4-m Thai National Telescope
TL;DR: In this article, a new folding mirror baffle was installed at the 2.4 m Thai National Telescope (TNT) to remove the critical objects from the detector's FOV by using a targeted method.
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