Funding for this research was provided by:
National Aeronautics and Space Administration (80NSSC17M0041)
National Aeronautics and Space Administration (NNX16AB98G)
Directorate for Mathematical and Physical Sciences (PHY-1250636, PHY-1607130)
National Science Foundation (AST-1716715)
Article History
Received: 15 January 2018
Accepted: 31 March 2018
First Online: 6 April 2018