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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  • A study of two Type IIb supernovae: SNe 2008aq and 2019gaf 
    Singh, Mridweeka; Sahu, D. K; Dastidar, R; Teja, Rishabh Singh; Gangopadhyay, A; Anupama, G. C; Howell, D. A; Bostroem, K. Azalee; McCully, Curtis; Burke, Jamison; Joshi, Arti; Hiramatsu, Daichi; Im, Hyobin; Srivastav, S; Misra, K (Oxford University Press on behalf of Royal Astronomical Society, 2026-02)
    We present photometric and spectroscopic studies of two core-collapse supernovae (SNe) 2008aq and 2019gaf in the optical wav elengths. Light curv e and spectral sequence of both the SNe are similar to those of other Type ...
  • Optical observations of the fast nova V1674 herculis 
    Rawat, Neeraj Singh; Sonith, L. S; Kamath, U. S; Bhargava, Yash; Anupama, G. C; Singh, K. P (Oxford University Press on behalf of Royal Astronomical Society, 2026-04)
    We present the evolution of optical spectra and light curves of the fast nova V1674 Herculis during 150 d past its eruption. Using the post-eruption AAVSO light curv e, w e hav e calculat ed the orbital period of V1674 Her ...
  • Structure and magnetic field of the bright-rimmed cloud IC 1396E/SFO 38 
    Sugitani, Koji; Wouterloot, Jan G. A; Parsons, Harriet; Graves, Sarah; Kusune, Takayoshi; Archana Soam (Oxford University Press on behalf of the Astronomical Society of Japan, 2026-02)
    We carried out polarimetric observations of the bright-rimmed cloud IC 1396E/SFO 38 with SCUBA-2/POL-2 to study the effect of ultraviolet (UV) light on its structure and magnetic field. This bright-rimmed cloud appears ...
  • Kinematics of acceleration-induced excitations in confined quantum fields 
    Shah, Hemansh; Kolekar, Sanved (American Physical Society, 2026-02-15)
    We investigate quantum field excitations in a rigid cavity that undergoes a transition from inertial motion to uniform acceleration while maintaining constant proper length. By constructing exact Bogoliubov transformations ...
  • Forecasting constraints on nonthermal light massive relics from future CMB experiments (CMB-S4/Simons Observatory) 
    Banerjee, Arka; Bhattacharjee, A; Das, Subinoy; Maharana, Anshuman; Sharma, Ravi Kumar (American Physical Society, 2026-02-15)
    Precise measurements of the cosmological impact of dark sector relics can shed light on physics beyond the Standard Model. In this work we present Fisher forecasts on nonthermal light massive relics (LiMR) models for a ...

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