IIA Institutional Repository: Recent submissions

  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Teja, Rishabh Singh (Indian Institute of Astrophysics, 2024-10)
    Supernovae (SNe, singular SN), the endpoints of stellar evolution, have fascinated humans since time immemorial, with recorded evidence dating back to two millennia. Continuing this quest, modern astronomy and astrophysics ...
  • Saraf, Pallavi (Indian Institute of Astrophysics, 2024-11)
    The hierarchical mass assembly of galaxies and the formation timescales of their substructures are important topics in astrophysics and cosmology. These aspects can be explored in the local universe by studying resolved ...
  • Maity, Samriddhi Sankar (Indian Institute of Astrophysics, 2024-07)
  • Radhika, Dharmadhikari (Indian Institute of Astrophysics, 2024)
    The segmented mirror technology has become the preferred choice for building moderate to large-size optical telescopes. For the segmented primary mirror to function like a single monolithic mirror, each segment must be ...
  • Bane Kshitij, Suhas Trupti (Indian Institute of Astrophysics, 2024)
    Exploration of the transient Universe is an exciting and fast-emerging area within radio astronomy. Radio transient sources can be defined as a class of objects that emit radio waves in the form of bursts, flares, or pulses ...
  • Khan, Raveena (Indian Institute of Astrophysics, 2024)
    Magnetic fields are the primary driver of the plasma thermodynamics in the upper solar atmosphere, especially in the transition region (TR) and the corona. These magnetic fields hold the key to long standing questions in ...
  • Nandi, Payel (Indian Institute of Astrophysics, 2024-10)
  • Hwang, Jihye; Pattle, Kate; Lee, Chang Won; Karoly, Janik; Kim, Kee-Tae; Kim, Jongsoo; Liu, Junhao; Qiu, Keping; Lyo, A-Ran; Eden, David; Koch, Patrick M; Arzoumanian, Doris; Sharma, Ekta; Poidevin, Frederick; Johnstone, Doug; Coude, Simon; Tahani, Mehrnoosh; Ward-Thompson, Derek; Archana Soam; Kang, Ji-hyun; Hoang, Thiem; Kwon, Woojin; Ngoc, Nguyen Bich; Chung, Eun Jung; Bourke, Tyler L; Onaka, Takashi; Kirchschlager, Florian; Tamura, Motohide; Kwon, Jungmi; Tang, Xindi; Eswaraiah, Chakali; Liu, Tie; Bastien, Pierre; Furuya, Ray S; Lai, Shih-Ping; Lin, Sheng-Jun; Wang, Jia-Wei; Berry, David (American Astronomical Society, 2025-06-01)
    Magnetic fields play a significant role in star-forming processes on core to clump scales. We investigate magnetic field orientations and strengths in the massive star-forming clump P2 within the filamentary infrared dark ...
  • Kale, Ruta; Muzahid, Sowgat; Khaire, V; Roy, Namrata; Das, Sanskriti; Chand, H; Chatterjee, Suchetana; Datta, Abhirup; Mousumi Das; Hota, A; Jog, C. J; Kartha, Sreeja S; Lal, D. V; Mondal, Chayan; Nath, B. B; Choudhury, Prakriti Pal; Paul, Surajit; Sachdeva, Sonali; Sharma, Prateek; Singh, Priyanka; Singh, V; Subramanian, S; Sur, Sharanya (Springer Nature, 2025-12)
    Galaxies, clusters, and the intergalactic medium (IGM) are the essential and interconnected components of the cosmic ecosystem. Galaxies, with their diverse morphologies and stellar populations, are the building blocks of ...
  • Misra, Amar P; Dey, Rupak; Krishan, V (American Institute of Physics, 2025-06)
    We study the linear theory of magnetohydrodynamic (MHD) waves, namely, the Alfvén and the fast and slow magnetosonic modes in a rotating Hall-MHD plasma with the effects of the obliqueness of the external magnetic field ...
  • Khuntia, Soumyaranjan; Mishra, Wageesh; Agarwal, Anjali (EDP Sciences, 2025-05)
    Context. The arrival of a series of coronal mass ejections (CMEs) at the Earth resulted in a great geomagnetic storm on 10 May 2024, the strongest storm in the last two decades. Aims. We investigated the kinematic and ...
  • Mondal, Chayan; Barway, Sudhanshu (EDP Sciences, 2025-05)
    We present the discovery of a peculiar central stellar structure in the collisional ring galaxy AM0644-741 using HST imaging and MUSE integral field unit (IFU) data. We identified two Sérsic components with a Sérsic index ...
  • Saha, Piyali (Indian Institute of Astrophysics, 2021)
    Star formation is a chain of processes in which molecular clouds get converted to a compact stellar systems, which are the potential platforms of life. Although, numerous observations and simulations have been performed ...
  • Marriott-Best, Alisha; Chowdhury, Debika; Ghoshal, Anish; Tasinato, Gianmassimo (American Physical Society, 2025-05-15)
    The gravitational wave (GW) interferometers Laser Interferometer Space Antenna (LISA) and the Einstein Telescope (ET) are expected to be functional in the next decade(s), possibly around the same time. They will operate ...

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