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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  • The most luminous known fast blue optical transient at2024wpp: Unprecedented evolution and properties in the X-rays and radio 
    Nayana, A. J; Margutti, R; Wiston, Eli; Laskar, T; Migliori, Giulia; Chornock, R; Timothy, J. G; LeBaron, Natalie; Hajela, Aprajita; Christy, Collin T; Sfaradi, Itai; Tsuna, Daichi; Aspegren, Olivia; Colle, Fabio De; Metzger, B. D; Lu, Wenbin; Beniamini, Paz; Kasen, D; Berger, E; Grefenstette, Brian W; Alexander, Kate D; Anupama, G. C; Coppejans, D. L; Cruz, Luigi F; DeBoer, David R; Drout, Maria R; Farah, Wael; Huang, Xiaoshan; Jacobson-Galan, W. V; Milisavljevic, D; Pollak, Alexander W; Roth, Nathan J; Sears, Huei; Siemion, Andrew; Sheikh, Sofia Z; Steiner, James F; Vurm, Indrek (American Astronomical Society, 2025-11-01)
    We present X-ray (0.3─79 keV) and radio (0.25─203 GHz) observations of the most luminous fast blue optical transient (LFBOT) AT 2024wpp at z = 0.0868, spanning 2─280 days after first light. AT 2024wpp shows luminous (LX ≍ ...
  • Modeling the cosmic ultraviolet background at the north galactic pole 
    Murthy, J (Springer Nature, 2025-12)
    I explore models of the dust-scattered component of the cosmic ultraviolet background (CUVB) at the north galactic pole (NGP) to develop a framework for calculating the dust-scattered light as a function of the optical ...
  • SN 2021tsz: A luminous, short photospheric phase Type II supernova in a low-metallicity host 
    Dastidar, R; Pignata, G; Dukiya, N; Misra, K; Howell, D. A; Singh, Mridweeka; Gutierrez, C. P; Pellegrino, C; Kumar, A; Ayala, B; Gangopadhyay, A; Newsome, M; Padilla Gonzalez, E; Bostroem, K. A; Hiramatsu, D; Terreran, G; McCully, C (EDP Sciences, 2025-11)
    We present the analysis of the luminous Type II Supernova (SN) 2021tsz, which exploded in a low-luminosity galaxy. It reached a peak magnitude of −18.88 ± 0.13 mag in the r band and exhibited an initial rapid decline of ...
  • Thermal and turbulence characteristics of fast and slow coronal mass ejections at 1 AU 
    Khuntia, Soumyaranjan; Mishra, Wageesh (Springer Nature, 2025-12)
    Understanding thermal and turbulence properties of interplanetary coronal mass ejections (ICMEs) is essential for analysing their evolution and interactions with the surrounding medium. This study explores these characteristics ...
  • Kinematics of the lens host S0 galaxy NGC 1553: Role of secular processes 
    Keshri, Saili; Barway, Sudhanshu; Combes, Francoise (EDP Sciences, 2025-11)
    We investigated the central structure of the S0 galaxy NGC 1553, to understand its origin and the underlying dynamical processes that shape it. The high-resolution integral field spectroscopic data from the Multi Unit ...

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