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Browsing by Subject "Dark matter theory"

Now showing items 1-6 of 6

Alleviating the H0 and σ8 anomalies with a decaying dark matter model

Pandey, Kanhaiya L; Karwal, Tanvi; Das, Subinoy (IOP Publishing, 2020-07)

The Hubble tension between the ΛCDM-model-dependent prediction of the current expansion rate H0 using Planck data and direct, model-independent measurements in the local universe from the SH0ES collaboration disagree at ...
Constraints on dark matter models from the observation of Triangulum-II with the Fermi Large Area Telescope

Biswas, Sayan; Bhattacharjee, P; Majumdar, P; Das, Subinoy; Mousumi Das; Joarder, P. S (IOP Publishing, 2017-11)

Triangulum-II, a newly discovered dwarf spheroidal galaxy, is a strong candidate for the indirect search of dark matter through the detection of γ -ray emission that could originate from the pair- annihilation ...
The effects of the small-scale behaviour of dark matter power spectrum on CMB spectral distortion

Sarkar, A; Sethi, S. K; Das, Subinoy (IOP Publishing, 2017-07)

After numerous astronomical and experimental searches, the precise particle nature of dark matter is still unknown. The standard Weakly Interacting Massive Particle(WIMP) dark matter, despite successfully explaining the ...
The effects of the small-scale DM power on the cosmological neutral hydrogen (HI) distribution at high redshifts

Sarkar, A; Mondal, Rajesh; Das, Subinoy; Sethi, S. K; Bharadwaj, Somnath; Marsh, D.â (IOP Publishing, 2016-04)

JCAP04(2016)012 ou rnal of C osmology and A strop article P hysics An IOP and SISSA journal J The effects of the small-scale DM power on the cosmological neutral hydrogen (H i ) distribution at ...
Forming supermassive black holes like J1342+0928 (invoking dark matter) in early universe

Sivaram, C; Arun, K; Kiren, O. V (Springer, 2018-02)

Recent discovery of J1342+0928 using data from the WISE telescope and ground based surveys indicate presence of a supermassive black hole (SMBH) having a mass of 800 million solar mass at a redshift of about 7.6. This imply ...
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 ...

Browsing by Subject "Dark matter theory"

Browsing by Subject "Dark matter theory"

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