VLBI13A-493

Jet Streamline Measurement in M87 to Probe the Initial Acceleration Mechanism

Abstract

We propose a full-track GMVA observation with GBT at 2 Gbps recording mode towards the M 87 jet. With this observation, we plan to define the structure, streamline, of the jet as is the same method as used in Asada &Nakamura 2012. We expect to see parabolic or conical streamline towards innermost jet region. Since the streamline of the jet is closely related to the acceleration mechanism of the jet, we can idenfity the initial acceleration mechanism either "magnetic centrifugal force dominate" or "magnetic pressure dominate".

Investigators

Name	Institution
Masanori Nakamura	Academia Sinica; National Institute of Technology, Hachinohe College
Juan Carlos Algaba	Academia Sinica; Korea Astronomy and Space Science Institute; Seoul National University
Makoto Inoue	Academia Sinica
Satoki Matsushita	Academia Sinica
Nicolas Pradel	Academia Sinica; Auckland University of Technology
Hiroaki Nishioka	Academia Sinica
Cheng-Yu Kuo	Virginia, University of; National Sun Yat-sen University
GBT Operator	Green Bank Observatory
Keiichi Asada *	Academia Sinica

* indicates the PI