AR_final file_2018-19

Workshop on Radio Observations using a Horn Antenna Faculty members from half a dozen institutions participated in the workshop on Radio Observations using a Horn Antenna at IUCAA from March 9 to 11, 2019. The goal of this workshop was to build a horn antenna and a complete system to detect the HI line of neutral atomic hydrogen at 1420.4 MHz coming from the Galactic plane and understand the physics behind it. In this workshop participants assembled all the mechanical parts to construct the horn antenna along with the mount and also assembled and connected all the front-end electronics to detect the hydrogen line. Once the antenna was ready, it was pointed towards the Galactic plane and the participants could see the spectrum on the screen. There was a shift in the 1420 MHz line compared to the rest frequency due to the rotation of our Galaxy. This was done under the technical supervision of IUCAA Radio Physics Laboratory, particularly Jameer Manur and Ashish Mhaske. The school was coordinated by Sayali Avachat, Joydeep Bagchi and Manojendu Choudhury, all from IUCAA, who were also resource persons for the workshop. ( 34 )