Abstract Details
| Name: | Arun Surya |
| Affiliation: | Tata Institute of Fundamental Research |
| Conference ID : | ASI2023_415 |
| Title : | MOIS: A configurable slit multi-object infrared spectrograph for DOT |
| Authors : | Arun Surya, Manoj Puravankara, Bhaswati Mookerjea, Devendra K Ojha, Satheesha Poojary, Mayank Narang, Pankaj Madhwani, Krishnan Kutty, Harshit Shah, Shailesh Bhagat, Himashu Tyagi, Bihan Banerjee, Sanjay Gharat, Pradeep Sandimani |
| Mode of Presentation: | Oral |
| Abstract Category : | Instrumentation and Techniques |
| Abstract : | The IR group at TIFR is developing a multi-object configurable slit spectrograph designed to be used with the 3.6 Devasthal Optical Telescope (DOT). It will cover the near-infrared wavelength band of 0.97 - 2.37 microns and have a spectroscopic field of view of 9’ x 3’ arc minutes. Following the legacy of the MOSFIRE instrument at W.M Keck Observatory, MOIS is being designed as a precursor to a future multi-object spectrograph for the planned National Large Optical Telescope (NLOT). MOIS will be the first configurable slit multi-object spectrograph in India and is planned to be a workhorse instrument for the Indian astronomy community. It is designed with the capability of five configurable slits created by 10 bars moving pair-wise in opposition. The design had unique challenges of adequate thermal isolation and cooling of the slits units to ~120 K and wide-field camera design for the f/9 beam of the telescope. We will discuss the detailed design and modeling that have been completed as part of the preliminary design. We will also discuss the potential science drivers for multi-object spectroscopy with DOT and with NLOT. |