Dark Matter and Neutrinos
Gazal Sharma, Anu and B.C. Chauhan
Central University of Himachal Pradesh, Dharamshala (HP)
The Keplerian distribution of velocities is not observed
in the rotation of large
scale structures, such as found in the rotation of spiral
galaxies. The deviation from Keplerian distribution
provides compelling evidence of the presence of
non-luminous matter i.e. called dark matter. There are several
astrophysical motivations for investigating the dark matter
in and around the galaxy as halo. In this work we address
various theoretical and experimental indications pointing
towards the existence of this unknown form of matter.
Amongst its constituents
neutrino is one of the most prospective candidates.
We know the neutrinos oscillate and have tiny masses,
but there are also signatures for existence of heavy and
light sterile neutrinos and possibility of their mixing.
Altogether, the role of neutrinos is of great interests
in cosmology and understanding dark matter.