1. School of Physics and Astronomy, Monash University , Clayton, VIC 3800, Australia
2. ARC Centre of Excellence for Astrophysics in Three Dimensions (ASTRO-3D) , Australia
3. School of Physics, University of New South Wales , NSW 2052, Sydney, Australia
4. Sydney Institute for Astronomy (SIfA), School of Physics, University of Sydney , NSW 2006, Sydney, Australia
5. Stellar Astrophysics Centre, Department of Physics and Astronomy, Aarhus University , DK-8000 Aarhus C, Denmark
6. Australian Astronomical Optics, Faculty of Science and Engineering, Macquarie University , Macquarie Park, NSW 2113, Australia