| Name: deekshya roy sarkar |
| Affiliation: Physical Research Laboratory |
| Conference ID: ASI2026_545 |
| Title: Design and Development of SIRIS instrument for PRL's 1.2m telescope |
| Abstract Type: Poster |
| Abstract Category: Facilities, Technologies and Data science |
| Author(s) and Co-Author(s) with Affiliation: Deekshya Roy Sarkar(Physical Research Laboratory, Ahmedabad-380058, India), Prashanth Kumar Kasarla(Physical Research Laboratory, Ahmedabad-380058, India), Anwesh Kumar Mishra(Indian Institute Of Astrophysics, Bengaluru-560034, India), Prafull Kumar Chaudhary(Jamia Millia Islamia, New Delhi – 110025, India), Shashikiran Ganesh(Physical Research Laboratory, Ahmedabad-380058, India) |
| Abstract: A collimator camera type InGaAs based Short-wave InfraRed Imaging System(SIRIS) in the wavelength range of 800-1700 nm is being developed for the 1.2 m PRL telescope at Mount Abu. This InGaAs detector is operated with TEC cooling achieving acceptable level of dark current giving us benefit over cryogenic cooling.The instrument will have iZ, iJ and iH filters for photometry. The re-imaging optics of this instrument is converting F#13 beam from telescope to F#3.6 beam at the detector plate giving a 4.8 x 4 arc-minutes on the detector. This instrument will be helpful in observation of bright infrared objects, significant number of type-II cepheids and other late type variables and many other science objectives. In this conference, I shall describe the instrument specifications, mechanical design, optical design and some observational results carried out by this instrument.
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