Abstract Details
| Name: PAVAN KUMAR VISHWAKARMA Affiliation: Research Scholar Conference ID: ASI2018_1553 Title : A survey of galactic HI cold neutral medium power spectrum Authors and Co-Authors : Dr. Prasun Dutta Assistant prof. Department of Physics IIT(BHU), Varanasi ,221005 Abstract Type : Poster Abstract Category : Stars,ISM and the Galaxy Abstract : We use radio-interferometric observations of galactic HI in absorption against bright supernovae remnants spread across different galactic longitudes to probe turbulence in the cold neutral interstellar medium (ISM) at scales of a few parsecs to a few hundred parsecs. We measure the opacity fluctuation power spectrum and access that of the corresponding column density assuming certain physically motivated temperature profiles. We plan to perform GMRT observation with a sample of 10 supernovas distributed along different directions in our Galaxy. At present this exercise is performed for two supernovae remnants the Cassiopeia A and Crab and we shall present the results related to these. We will elaborate on the sample selection and science goal of the overall project in detail. |