35th Annual Report (2022-2023) - ENGLISH

169 as estimated by our wormhole model is in agreement with and lies within the range of values as constrained by observational data in a cosmological context. Also, the negative sign of the second EU parameter A as obtained from our wormhole model is in agreement with the one required for describing an EU, which further indicates on the existence of such wormholes in an EU without accounting for any additional exotic matter field or any modification to the gravitational sector. Also, we constructed a new class of five-dimensional (5D) thin-shell wormholes by the 'Cut–Paste' technique from black holes in Einstein–Gauss–Bonnet gravity inspired by non-commutative geometry starting with a static spherically symmetric, Gaussian mass distribution as a source and for this structural form of the thin-shell wormhole we have explored several salient features of the solution, viz., pressure–density profile, equation of state, the nature of wormhole, total amount of exotic matter content at the shell. We have also analyzed the linearized stability of the constructed wormhole. From our study we can assert that our model is found to be plausible with reference to the other model of thin-shell wormhole available in literature. have Colloquia/Seminars organized by ICARD: th st (Activities from 14 Sept. 2022 to 31 March2023) Publications by using ICARD facilities: th st (Activities from 14 Sept. 2022 to 31 March2023) 1. Colloquium Lecture delivered by Prof. Naresh Dadhich, Emeritus Professor & Former Director, IUCAA, Pune, Govt. of th India on 25 November 2022. Title of the talk: Why Einstein (Had I been born in 1844!)? : Relativity for Everyone. 2. Colloquium Lecture (HYBRID MODE) delivered by Prof. Distinguished Professor and Centre Director, National Centre for Radio Astrophysics (NCRA), Tata Institute of Fundamental Research (TIFR) Govt. of India th on 16 February 2023. Title of the talk: Probing the Universe using radiowaves. Members of ICARD, Aliah University have published articles in the following journals: [1] Possible Existence of Dark-Matter- Admixed Pulsar in the Disk Region Yashwant Gupta, , Pune University Campus, Pune, of the Milky Way Galaxy. Nilofar Rahman,Masum Murshid, Sajahan Molla and Mehedi Kalam, Universe 8, 12, 652 (2022); Impact Factor- 2.813; Citation :00. https://doi.org/10.3390/universe8120 652 [2] ––Thin-shell wormhole under non- commutative geometry inspired EinsteinGaussBonnet gravity. N Rahman, Mehedi Kalam , A Das, S Islam, F Rahaman, M Murshid, Eur. Phys. J. Plus 138, no. 146, 2, (2023) ; Impact Factor- 3.758; Citation :00 [3] Analytical model of low-mass strange stars in 2+1 space-time. nd Mehedi Kalam, Pramana - J Phys 97, no. 51, 1 (2023); Impact Factor-2.699; Citation :02, https://doi.org/10.1007/s12043-022- 02508-7 [4] Lorentzian wormholes in an emergent universe. Mehedi Kalam, Class. Quant. Grav. 40, no. 9, 095009 (2023); Impact Factor-3.528; Citation :06, DOI: 10.1140/epjp/s13360-023- 03764-1 DOI: 10.1088/1361-6382/acc5d7 Masum Murshid, Nilofar Rahman, Irina Radinschi a Rikpratik Sengupta, Shounak Ghosh, B.C.Paul and Prof. Naresh Dadhich, Emeritus Professor & Former Director, IUCAA, being felicitated by the Prof. Mehedi Kalam (Coordinator, ICARD) on 25th November 2022. Prof. Yashwant Gupta, Distinguished Professor and Centre Director, National Centre for Radio Astrophysics (NCRA), Tata Institute of Fundamental Research (TIFR) was delivering the colloquium lecture (HYBRID MODE) on 16th February 2023.