Abstract Details

Name: Krishnakumar M.A
Affiliation: Radio Astronomy centre, NCRA-TIFR, Ooty and Bharatiar University, Coimbatore
Conference ID: ASI2017_905
Title : Towards understanding the ISM turbulence using pulsars
Authors and Co-Authors : Bhal Chandra Joshi (National Centre for Radio Astrophysics) P.K. Manoharan (Radio Astronomy Centre, National Centre for Radio Astrophysics)
Abstract Type : Oral
Abstract Category : Stars,ISM and the Galaxy
Abstract : The turbulent ISM causes difficulties in observations of the compact astronomical objects, particularly in the radio regime. One of the best tools for studying the turbulent ISM is radio pulsars. Since the observations to understand the turbulence in different lines of sight are very less, we have started a concerted effort to improve the level of current statistics to a good level by observing the scatter broadening of pulsars. We will discuss details of our observations made with ORT and GMRT and the proposed studies at other radio telescopes around the world. We will review the current understanding of the ISM turbulence based on our observations and from such efforts available in the literature. Importance of such studies are currently understood in the fields of pulsar timing array (PTA), which search for gravitational waves from supermassive black holes, where the variation in dispersion measure due to turbulence is seen and will affect the sensitivity to gravitational wave detection. We also review the advantages of such studies from the future telescopes such as FAST, and SKA.