Welcome to the Digital Repository of Indian Institute of Astrophysics

This digital repository of Indian Institute of Astrophysics (IIAP), Bangalore, India is developed to capture, organize disseminate and preserve the research publications of IIAP. It also includes the in-house technical reports and annual reports in addition to various other grey literatures created within the institute.You can search, browse and access full text of these publications from the repository.

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  • On the magnetic reconnection and its properties during a flare using a magnetohydrodynamics simulation 
    Nayak, Sushree S; Hu, Qiang; He, Wen; Kumar, Sanjay; Bhattacharyya, R (Springer Nature, 2025-06)
    We study the magnetic reconnection during a flare by investigating flare ribbon dynamics using observations and data-constrained magnetohydrodynamics (MHD) simulation. In particular, we estimate the reconnection flux and ...
  • Large cold dust reservoir revealed in transitional SN Ib 2014C by James Webb Space Telescope mid-infrared spectroscopy 
    Tinyanont, S; Fox, O. D; Shahbandeh, M; Temim, Tea; Williams, Robert; Wangnok, Kittipong; Rest, Armin; Lau, Ryan M; Maeda, K; Jencson, Jacob E; Auchettl, Katie; Filippenko, A. V; Larison, Conor; Ashall, Chris; Brink, Thomas G; Davis, Kyle W; Dessart, Luc; Foley, Ryan J; Galbany, L; Grayling, Matthew; Johansson, J; Kasliwal, Mansi M; Lane, Zachary G; LeBaron, Natalie; Milisavljevic, D; Rho, Jeonghee; Sakon, I; Sarangi, Arkaprabha; Szalai, Tamas; Taggart, Kirsty; Van Dyk, S. D; Wang, Qinan; Yang, Yi; Zheng, W; Zsiros, Szanna (American Astronomical Society, 2025-06-01)
    Supernova (SN) 2014C is a rare transitional event that exploded as a hydrogen-poor, helium-rich Type Ib SN and subsequently interacted with a hydrogen-rich circumstellar medium (CSM) a few months postexplosion. This unique ...
  • Doppler shifted transient sodium detection by KECK/HIRES 
    Unni, Athira; Oza, Apurva V; Hoeijmakers, H. Jens; Seidel, Julia V; Sivarani, T; Schmidt, Carl A; Kesseli, Aurora Y; Kleer, Katherine de; Baker, Ashley D; Gebek, Andrea; Westram, Moritz Meyer zu; Fisher, Chloe; Sallum, Steph; Manjunath, B; Bello-Arufe, Aaron (Oxford University Press on behalf of Royal Astronomical Society, 2025-06)
    We carried out the first high-resolution transit observations of the exoplanet WASP-49 Ab with Keck/HIRES. Upon custom wavelength calibration we achieve a Doppler RV precision of < 60 ms−1 . This is an improvement in ...
  • Computations of eclipses from 14th-century manuscript Ekanathakarana 
    Shylaja, B. S; Shubha, B. S (Springer Nature, 2025-06)
    The procedures followed for computations of eclipses in the classical treatises are best understood with a practical demonstration of the technique. Here, we have studied manuscripts describing the computations. These are ...
  • New age observing facilities for Indian astronomy: 2020–2035 
    Ramya, S; Roy, Jayanta; Reddy, Eswar; Anupama, G. C; Banyal, R. K; Bhalerao, Varun; Bhattacharyya, Subir; Buch, Kaushal Dipak; Eswaraiah, Chakali; Chitnis, V. R; Datta, Abhirup; Godambe, Sagar; Maheswar, G; Kale, Ruta; Lal, D. V; Mallick, K. K; Majumdar, P; Mitra, Sanjit; Oberoi, Divya; Mohanty, Pravata; Mookerjea, B; Ojha, D. K; Dewangan, Lokesh; Jose, J; Ninan, J. P; Rao, Mayuri Sathyanarayana; Pahari, Mayukh; Naik, Sachindra; Jain, Pankaj; Prabhu, T. P; Ramaprakash, A. N; Rana, Vikram; Ramesh, R; Ravindra, B; Sankarasubramanian, K; Ramadevi, M. C; Narendranath, S; Archana Soam; Vadawale, S. V; Vadamattom, Veena; Girish, V; Yadav, K. K; Singh, Krishna Kumar; Mankuzhiyil, Nijil; Bharat Kumar, Y; Arun Babu, K. P (Springer Nature, 2025-06)
    In this article, we present the current state of observing facilities available for Indian astronomers in various wavelength bands existing in the country. We also mention a few state-of-the-art astronomical facilities ...

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