IIA Institutional Repository

Browsing by Subject "Cosmology: theory"

Browsing by Subject "Cosmology: theory"

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  • Betti Numbers of Gaussian fields 
    Park, C; Pranav, P; Pravabati, C; Weygaert, R; Jones, B; Vegter, G; Kim, I; Hidding, J; Hellwing, W. A (The Korean Astronomical Society, 2013-06)
    We present the relation between the genus in cosmology and the Betti numbers for excursion sets of three- and two-dimensional smooth Gaussian random fields, and numerically investigate the Betti numbers as a function of ...
  • Constraints on structure formation models from the Sunyaev-Zel'dovich effect 
    Majumdar, S; Subrahmanyan, R (Royal Astronomical Society, 2000-03)
    In the context of cold dark matter (CDM) cosmological models, we have simulated images of the brightness temperature fluctuations in the cosmic microwave background (CMB) sky owing to the Sunyaev–Zel'dovich (S–Z) effect ...
  • Role of primordial black holes in the direct collapse scenario of supermassive black hole formation at high redshifts 
    Pandey, Kanhaiya L; Mangalam, A (Indian Academy of Sciences, 2018-02)
    In this paper, we explore the possibility of accreting primordial black holes as the source of heating for the collapsing gas in the context of the direct collapse black hole scenario for the formation of super-massive black ...

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