Korean VLBI Network (KVN)



2015 Seminar List:


01/23/2015   01/30/2015   02/13/2015   02/27/2015   03/20/2015   04/10/2015   05/08/2015   05/15/2015   05/22/2015   05/29/2015   06/05/2015   06/12/2015   07/03/2015   07/24/2015   07/31/2015   08/07/2015   08/28/2015   09/04/2015   09/18/2015   09/25/2015   10/02/2015   10/30/2015   11/06/2015   11/27/2015  

Date
05/22/2015
Speaker
Dr. Soon-Wook Kim (KVN group)
Title
VLBI Observations of the Outflow Transition in the very early stage of the massive star formation
Abstract

A current belief in the massive star formation has been the development collimated, bipolr-like outflows before the presence of less collimated, wind-like outflows, in consideration of gas ejections associated with accretion disk and magnetic fields.

We present the first discovery of the transition of outflow from less collimated to collimated morphology based on a series of VLBI observations with H2O maser and continuum for almost two decades.

Physics underlying such a transition would be discussed. The observations strongly support very recent MHD simulations.


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Korean VLBI Network (KVN)