Browsing by Author "Sethi, Shiv K"

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Cosmological magnetic braking and the formation of high-redshift, super-massive black holes

Pandey, Kanhaiya L; Sethi, Shiv K; Ratra, Bharat (Oxford University Press on behalf of the Royal Astronomical Society, 2019-06)

We study the effect of magnetic braking due to a primordial magnetic field in the context of the formation of massive (≳104M⊙) direct-collapse black holes (DCBHs) at high redshifts. Under the assumption of axial symmetry, ...
How late can the dark matter form in our universe?

Sarkar, A; Das, Subinoy; Sethi, Shiv K (IOP Publishing, 2015-03)

We put constraints on the epoch of dark matter formation for a class of non-WIMP (Weakly Interacting Massive Particle) dark matter candidates. These models allow a fraction of Cold Dark Matter (CDM) to be formed between ...

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