Cosmology with cosmic microwave background anisotropy
TARUN SOURADEEP
Inter-University Centre for Astronomy and
Astrophysics, Post Bag 4, Ganeshkhind, Pune
411 007,
E-mail: tarun@iucaa.ernet.in
Abstract. Measurements of CMB anisotropy and, more recently, polarization have
played a very important role in allowing precise determination of various
parameters of the `standard' cosmological model. The expectation of
the paradigm of inflation and the generic prediction of the simplest
realization of inflationary scenario in the early Universe have also
been established -- `acausally' correlated initial perturbations in a
flat, statistically isotropic Universe, adiabatic nature of primordial
density perturbations. Direct evidence for gravitational instability
mechanism for structure formation from primordial perturbations has
been established. In the next decade, future experiments promise to
strengthen these deductions and uncover the remaining crucial
signature of inflation -- the primordial gravitational wave
background.
Keywords. Cosmology; cosmic microwave background.
PACS Nos 98.70.Vc; 98.80.-k; 98.80.Bp; 98.80.Cq; 98.80.Es