| |
 |
| Paper: |
New Frontiers in Protostellar Multiplicity with the ngVLA |
| Monograph: |
7, Science with a Next Generation Very Large Array |
| Page: |
333 |
| Authors: |
Tobin, J. J.; Sheehan, P.; Johnstone, D. |
| Abstract: |
The ngVLA will enable significant advances in our understanding of the formation and
evolution of multiple star systems in the protostellar phase, building upon the
breakthroughs enabled by the VLA.
The high-sensitivity and resolution at 3 mm wavelengths and longer will enable closer
multiple systems to be discovered in the nearby star forming regions.
The ngVLA is incredibly important
for multiplicity studies because dust opacity at short wavelengths (< 3 mm) can hide multiplicity
and the long wavelengths are needed to reveal forming multiples in the youngest systems.
The samples sizes
can be expanded to encompass star forming regions at distances of at least 1.5 kpc,
enabling statistical studies
that are on par with studies of field star multiplicity. We verify the capability of the
ngVLA to detect and resolve multiple star systems at distances out to 1.5 kpc using empirical
examples of systems detected by the VLA and scaling them to greater distances. We also use
radiative transfer models and simulations to verify that the ngVLA can resolve close binary
systems from their dust emission at these distances. The ngVLA
will also have excellent imaging capability and the circum-multiple environments can also be examined
in great detail. |
|
|
|
|
|
