MSV-2035 Astronomy Document - Inside Design - FINAL - FINAL

Astronomy & Astrophysics 76 Six different institutes in India (IUCAA, IIA, TIFR, NCRA, IIT-B and IIT-Indore) are working to establish the Rubin- India Consortium to participate in the Rubin project. Each of these institutions will provide an in-kind contribution towards different subsystems within the Rubin project in return for data rights for a specified number of scientists at these institutes. The proposed contributions have been reviewed favourably by the Rubin project and are under consideration by the US funding agencies NSF/SLAC/AURA. The Rubin-India consortium will collectively have 22 (+ possibly 5 more) PI positions for data access to Rubin, divided amongst the different institutions based on the fraction of their in-kind contributions. Every PI position comes with 4 associated junior PI positions for the entire duration of the Survey and is likely going to benefit about 150 students and 200 postdocs during the entire duration of the Rubin Project. The different in-kind contributions proposed by the institutions in the Rubin-India consortium concern various Rubin subsystems which deal with the different key science areas of cosmology, extragalactic science and transients, in addition to core contributions to the software infrastructure. In addition, there is considerable interest in all of the scientific areas that can be addressed by Rubin. 5.2.2 TelescopeArray A global effort to construct the next-generation array of imaging atmospheric Cherenkov telescopes (CTA) in both hemispheres of the world is currently underway. The main performance goals of the CTA project are as follows: (i) wide energy range coverage, from few tens of GeV to beyond 300 TeV; (ii) sensitivity of at least one order of magnitude better than any existing Cherenkov telescope installation, viz. achieving 1 milliCrab sensitivity between 100 GeV and fewTeV; (iii) improvement in angular resolution and energy resolution to study morphology of galactic -ray sources; (iv) having a wide field of view to study extended sources of -rays; and (v) having two observatories, one in the south with focus on galactic -ray sources and the other in the north with greater focus on extra-galactic sources. BARC, TIFR and SINP from India have been contributing to CTAsince its design phase in 2011 and efforts are on for an Indian participation in the second phase of construction. 5.2.3 MaunaKea Spectroscopic Explorer The Mauna Kea Spectroscopic Explorer (MSE) is a planned 11.25-meter aperture segmented telescope dedicated to carry out multi-object spectroscopy, with the ability to simultaneously measure thousands of objects, in three spectral resolution modes: low resolution of R ~ 3,000, moderate resolution of R ~ 6,000 and high resolution of R ~ 40,000. The primary mirror of the MSE telescope has 60 segments in total with each of them measuring 1.45-m in diameter. Together, they give amonolithic shape to the primarymirror. The Indian participation at present is through IIA, as an associate member of the MSE project. IIA is contributing to design aspects of the primary mirror. The scope of the development of the primary mirror system for MSE includes design and optimization of the Segment Support Assembly to support MSE primary mirror segments, finite element modelling and simulation for the MSE mirror segments, optimisation of the mirror figure for static, dynamic and thermal loads for both zenith and horizon pointing scenarios and development of the primary mirror segments support cells. Cherenkov ɤ ɤ ɤ MEGA SCIENCE VISION-2035