IIAP Publications

 

Recent Submissions

  • Singh, Mridweeka; Kwok, Lindsey A; Jha, Saurabh W; Dastidar, R; Larison, Conor; Filippenko, A. V; Andrews, Jennifer E; Andrews, Moira; Anupama, G. C; Arunachalam, Prasiddha; Auchettl, Katie; Banhidi, Dominik; Barna, Barnabas; Bostroem, K. Azalee; Brink, Thomas G; Cartier, Regis; Chen, Ping; Christy, Collin T; Coulter, David A; Covarrubias, Sofia; Davis, Kyle W; Dickinson, Connor B; Dong, Yize; Farah, Joseph R; Flors, Andreas; Foley, Ryan J; Franz, Noah; Fremling, Christoffer; Galbany, L; Gangopadhyay, A; Garg, Aarna; Gates, Elinor L; Graur, Or; Gordon, Alexa C; Hiramatsu, Daichi; Hoang, Emily; Howell, D. A; Hsu, Brian; Johansson, J; Joshi, Arti; Kahinga, Lordrick A; Kaur, Ravjit; Kumar, Sahana; Kumnurdmanee, Piramon; Kuncarayakti, H; LeBaron, Natalie; Lidman, C; Liu, Chang; Maeda, K; Maguire, Kate; Martin, Bailey; McCully, Curtis; Mehta, Darshana; Menotti, Luca M; Metevier, Anne J; Miller, Adam A; Misra, K; Murphey, C. Tanner; Newsome, Megan; Padilla Gonzalez, E; Patra, Kishore C; Pearson, Jeniveve; Piro, Anthony L; Polin, Abigail; Ravi, Aravind P; Rest, Armin; Rehemtulla, Nabeel; Retamal, Nicolas Meza; Robinson, Olivia M; Rojas-Bravo, Cesar; Sahu, D. K; Sand, D. J; Schmidt, B. P; Schulze, Steve; Schwab, Michaela; Shrestha, Manisha; Siebert, Matthew R; Simha, Sunil; Smith, Nathan; Sollerman, Jesper; Srivastav, S; Subrayan, Bhagya M; Szalai, Tamas; Taggart, Kirsty; Teja, Rishabh Singh; Terwel, Jacco H; Tinyanont, S; Valenti, S; Vinko, J; Westerling, Aya L; Wheeler, J. C; Yang, Yi; Zheng, W (American Astronomical Society, 2026-03-10)
    We present extensive ultraviolet to optical photometric and optical to near-infrared (NIR) spectroscopic follow-up observations of the nearby intermediate-luminosity (MV = −16.81 ± 0.19 mag) Type Iax supernovae (SNe Iax) ...
  • Singh, Koshvendra; Ninan, J. P; Guo, Zhen; Ivanov, Valentin D; Buckley, David A. H; Ojha, D. K; Monson, Andrew; Chand, Tarak; Sharma, S; Yadav, Ram Kesh; Sahu, D. K; Kumar, Pramod; Elbakyan, Vardan; Nayakshin, Sergei; Fermiano, Vitor; Fang, Min; Borissova, Jura; Chen, Wen Ping; Hambsch, Franz-Josef; Kurtev, Radostin; Morris, Calum; Osses, Javier; Rodríguez, Vania; Sharma, Tanvi; Bandari, Srikanth; Thanathibodee, Thanawuth; Wang, Wei-Hao; Zhou, Yuting (American Astronomical Society, 2026-03-20)
    Accretion-driven outbursts in young stellar objects remain poorly understood, largely limited by a statistically small sample of closely followed-up events. This underscores the importance of a thorough exploration of each ...
  • Ahumada, Tomas; Anand, Shreya; Bulla, Mattia; Gupta, Vaidehi; Kasliwal, Mansi M; Stein, Robert; Karambelkar, Viraj; Bellm, Eric C; Jegou du Laz, Theophile; Coughlin, Michael W; Andreoni, Igor; Banerjee, Smaranika; Bochenek, Aleksandra; Hinds, K. -Ryan; Hu, Lei; Palmese, Antonella; Perley, Daniel A; Pletskova, Natalya; Salgundi, Anirudh; Singh, A; Sollerman, Jesper; Swain, Vishwajeet; Wold, Avery; Bhalerao, Varun; Cenko, S. Bradley; Cook, David O; Copperwheat, Christopher M; Graham, Matthew J; Kaplan, David L; Singer, Leo P; Sravan, Niharika; Busmann, Malte; Gassert, Julius; Gruen, Daniel; Sommer, Julian; Zhang, Yajie; Amsellem, Ariel; Cabrera, Tomas; Hall, Xander J; Kunnumkai, Keerthi; O’Connor, Brendan; Barna, Tyler; Nunes, Felipe Fontinele; Toivonen, Andrew; Sasli, Argyro; Masci, Frank J; Chen, Tracy X; Dekany, Richard; Purdum, Josiah; Le Calloch, Antoine; Anupama, G. C; Barway, Sudhanshu (IOP Publishing, 2026-03)
    We present the searches conducted with the Zwicky Transient Facility (ZTF) in response to S250206dm, a bona fide event with an online false alarm rate of one in 25 yr, detected by the International Gravitational Wave ...
  • Tiwari, Arihant; Rachana; Vivek, M; Rakshit, S (American Astronomical Society, 2026-03-01)
    We present an analysis of 22,656 narrow-line Seyfert 1 galaxies (NLSy1s) from the Sloan Digital Sky Survey (SDSS) DR17 (0.1 ≤ z ≤ 0.9), identifying a sample of spectroscopically anomalous sources. These anomalies were ...
  • Kumar, Aman; Sarangi, Arkaprabha (American Astronomical Society, 2026-03-10)
    We model the formation of dust in the ejecta of Type Iax supernovae (SNe), which is a low-luminosity subclass of Type Ia SNe. A nonequilibrium chemical kinetic approach is adopted to trace the synthesis of molecules, molecular ...
  • Mishra, Dibya Kirti; Chatterjee, Subhamoy; Jha, Bibhuti K; Raju, Hemapriya; Priyadarshi, Aditya; Hegde, M; Routh, Srinjana; Banerjee, D; Khan, M. Saleem (American Astronomical Society, 2026-03)
    Kodaikanal Solar Observatory (KoSO) is one of the oldest solar observatories, possessing an archive of multiwavelength solar observations, including white light, Ca II K, and Hα images spanning over a century. In addition ...
  • Gupta, Shivani; Baug, Tapas; Archana Soam; Liu, Tie; Xu, Feng-Wei; Moharana, Satyajeet; Garay, Guido; Lee, Chang Won; Zhang, Siju; Hoque, Ariful; Porel, Puja; Zhu, Lei; Yang, Dongting; Liu, Hong-Li; Jiao, Wenyu; Liu, Xunchuan; Panja, Alik; Mai, Xiaofeng; Zhang, Yankun; Kim, Shinyoung (American Astronomical Society, 2026-03-10)
    We present a gas kinematic study of the massive protocluster G318.049+00.086. The protocluster is reported to contain 12 prestellar core candidates and four protostellar cores. Filamentary structures are identified using ...
  • Swain, Vishwajeet; Bhalerao, Varun; Kumar, Harsh; Goyal, Mehul; Ghosh, Ankur; Pathak, Utkarsh; Chandra, Poonam; Ahumada, Tomas; Anupama, G. C; Bala, S; Barway, Sudhanshu; Bloom, Joshua S; Dimple; Karambelkar, Viraj; Kasliwal, Mansi M; Misra, K; Purdum, Josiah; Saraogi, Divita; Sollerman, Jesper; Suresh, Aswin; van der Walt, Stéfan; Waratkar, Gaurav (American Astronomical Society, 2026-03-20)
    We present a comprehensive multiwavelength study of a bright gamma-ray burst GRB 230204B, analyzing both prompt and afterglow emissions. This GRB is highly energetic, with an isotropic equivalent energy emission of Eiso ...
  • Reshma, M; Stalin, C. S; Mandal, A. K; Kayal, Abhijit; Gudennavar, S. B; Joseph, P (Elsevier B.V., 2026-03)
    Active galactic nuclei are known to exhibit flux variations across the entire electromagnetic spectrum. Among these, correlations between UV/optical and X-ray flux variations serve as a key diagnostics for understanding ...
  • Choraghe, Komal; Mishra, Wageesh; Khuntia, Soumyaranjan (Oxford University Press on behalf of Royal Astronomical Society, 2026-03)
    The solar wind at 1 au is primarily super-Alfvénic, butrare instances occur when the Alfvén speed surpassesthe solar wind speed, resulting in occurrences of sub-Alfvénic intervals. During sub-Alfvénic intervals, the solar ...
  • Dagore, A; Joseph, P; Tandon, S. N; Subramaniam, A; Ghosh, S. K; Stalin, C. S (American Astronomical Society, 2026-03)
    The Ultra-Violet Imaging Telescope (UVIT) is one of the five payloads on board the first Indian multiwavelength astronomical observatory, AstroSat, launched by the Indian Space Research Organisation on 2015 September 28. ...
  • Sarkar, Sougata; Biswas, Prerana; Kalinova, Veselina; Roy, Nirupam; Patra, Narendra Nath; Kurapati, Sushma (Oxford University Press on behalf of Royal Astronomical Society, 2026-03)
    The distribution of dark matter in the inner regions of galaxies poses a key challenge for small-scale Lambda-cold dark matter (Λ-CDM) cosmology. While CDM simulations predict cuspy inner density profiles, observations ...
  • Mukhopadhyay, Swagata; Shantikumar, N. S; Uchiyama, Akihiro; Jorphail, S; Vivek, Chiranjeevi G; Shrungeshwara, T. S; Sreedevi, P; Matsunaga, Tsuneo; Sharma, S; Gupta, Pawan; Angchuk, D; Jade, S (Elsevier B.V., 2026-03-01)
    Sun–sky radiometer (model POM-01) is commonly used for studying aerosol optical and physical properties at selected aerosol-specific channels. Although the instrument is equipped with a precipitable water vapor (PWV) channel ...
  • Chand, Komal; Panthi, Anju; Vaidya, Kaushar (American Astronomical Society, 2026-03)
    Trumpler 5 is a populous, intermediate-age (∼3 Gyr), metal-poor ([Fe/H] ∼ −0.4) open cluster, located at a distance of approximately ∼3050 pc. This is a well-studied cluster for its broadened main-sequence (MS) and blue ...
  • Das, Hrishav; Sahu, D. K; Dutta, Anirban; Singh, Mridweeka; Anupama, G. C; Teja, Rishabh Singh (American Astronomical Society, 2026-03-01)
    We present comprehensive photometric and spectroscopic observations of SN 2022eyw, a luminous member of the Type Iax supernova (SN Iax) subclass. SN 2022eyw reached a peak absolute magnitude of Mg = –17.80 ± 0.15 mag and ...
  • Pradhan, Sunit Sundar; Joshi, Jayant; Samanta, T (American Astronomical Society, 2026-03-10)
    Coronal mass ejections (CMEs) often exhibit a three-part structure consisting of a bright inner core, an outer leading edge, and an intervening dark cavity. While the core has traditionally been attributed to prominence ...
  • Ahanger, Sajad; Shah, Zahir; Sahayanathan, S; Iqbal, Naseer; Malik, Zahoor; Manzoor, Aaqib (American Astronomical Society, 2026-03-10)
    We present a detailed temporal and spectral analysis of the blazar S5 1044+71 using multiwavelength data obtained from the Fermi-LAT and Swift-XRT/UVOT telescopes. Applying the Bayesian block algorithm to the 3-day binned ...
  • Bura, Annu; Nobrega-Siverio, Daniel; Samanta, T; Joshi, Jayant (American Astronomical Society, 2026-03-20)
    Small-scale jet-like eruptions, such as picoflare jets and jetlets, are recognized as potential contributors to coronal heating and solar wind acceleration, yet their physical origin is still not fully established. Using ...
  • Ni, Lei; Lin, Jun; Samanta, T; Cheng, Guanchong; Wang, Yifu; Erdelyi, Robertus (American Astronomical Society, 2026-03-20)
    How the solar atmosphere is heated from a temperature of about 5000 to 6000 K in the lower atmosphere to about 1–2 MK in the corona has challenged the astrophysical community for nearly 80 yr. The same puzzle exists for ...
  • Gupta, A. C; Volvach, A. E; Kishore, Shubham; Volvach, L. N; Wiita, P. J; Cui, Lang; Valtonen, Mauri J; Mondal, Sandeep K; Gaur, H (EDP Sciences, 2026-03)
    Context. Blazars are a subclass of radio-loud active galactic nuclei (AGN) that display strong multi-wavelength variability on diverse timescales ranging from years down to minutes. In the last 1.5 decades, there have been ...

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