Conveners
Astro Physics-I
- Tirthankar Roy CHOUDHURY
Dr
Suchetana Chatterjee
(Assistant Professor)
29/01/2015, 14:00
Contributory Talks
Recent work on quasar clustering suggests a degeneracy in the halo occupation distribution constrained from two-point correlation functions. To break this degeneracy, we make the first empirical measurement of the mean occupation function (MOF) of quasars at z ~ 0.2 by matching quasar positions with groups and clusters identified in the MaxBCG sample. We fit two models to the MOF, a power law...
Mr
Rajesh Mondal
(Indian Institute of Technology Kharagpur)
29/01/2015, 14:15
Contributory Talks
Observations of the redshifted 21-cm signal from neutral hydrogen (HI) are a very promising probe of the Epoch of Reionization (EoR), and there is a considerable observational effort underway to detect the EoR 21-cm power spectrum e.g. [GMRT][1], LOFAR, MWA, and PAPER. Observing the EoR 21-cm signal is one of the key scientific goals of the future telescope SKA. It is important to have...
Mr
Raghunath Raghunath Ghara
(NCRA-TIFR)
29/01/2015, 14:30
Contributory Talks
Observations of redshifted 21 cm radiation from the epoch of
reionization promises to provide information on the physical processes
during that epoch. Many low frequency interferometers are trying to
provide statistical measurements of this signal, such as its power
spectrum. Beside observations numerical simulations are essential to
derive tight constraints on different aspects of...
16.
Generation of large scale magnetic fields in the early universe driven by cosmological neutrinos
Maxim Dvornikov
(USP)
29/01/2015, 14:45
Contributory Talks
I study the generation of cosmic magnetic fields in the primordial plasma of the early universe. A strong large scale magnetic field can be created owing to the instability caused by the parity violating interaction between charged leptons and neutrino-antineutrino gas. For this purpose I calculate the most general expression for the Chern-Simons parameter in this background matter using the...
