PROFESSOR TARUN SOURADEEP

The talk will review the first cosmology results announced by the Planck space mission very recently. The Planck satellite measured fluctuations in the temperature and linear polarization of Cosmic Microwave background over the full sky at unprecedented angular resolution and sensitivity. On one hand, this milestone in cosmology confirms the emerging 'standard model' of cosmology with high confidence, including multiple remarkable cross-checks on simple model of structure formation within the LCDM model and also points to the simplest version of inflation. On the other hand, it has also solidified the evidence for possible violation of the cosmological principle – a fundamental assumption of cosmology!!!