Stars at High Spatial Resolution
Abstract
We summarize some of the compelling new scientific opportunities for understanding stars and stellar systems that can be enabled by sub-milliarcsec (sub-mas) angular resolution, UV-Optical spectral imaging observations, which can reveal the details of the many dynamic processes (e.g., evolving magnetic fields, accretion, convection, shocks, pulsations, winds, and jets) that affect stellar formation, structure, and evolution. These observations can only be provided by long-baseline interferometers or sparse aperture telescopes in space, since the aperture diameters required are in excess of 500 m (a regime in which monolithic or segmented designs are not and will not be feasible) and since they require observations at wavelengths (UV) not accessible from the ground. Such observational capabilities would enable tremendous gains in our understanding of the individual stars and stellar systems that are the building blocks of our Universe and which serve as the hosts for life throughout the Cosmos.
Cite
@article{arxiv.1908.05665,
title = {Stars at High Spatial Resolution},
author = {Kenneth G. Carpenter and Gerard van Belle and Alexander Brown and Steven R. Cranmer and Jeremy Drake and Andrea K. Dupree and Michelle Creech-Eakman and Nancy R. Evans and Carol A. Grady and Edward F. Guinan and Graham Harper and Margarita Karovska and Katrien Kolenberg and Antoine Labeyrie and Jeffrey Linsky and Geraldine J. Peters and Gioia Rau and Stephen Ridgway and Rachael M. Roettenbacher and Steven H. Saar and Frederick M. Walter and Brian Wood},
journal= {arXiv preprint arXiv:1908.05665},
year = {2019}
}
Comments
Astro2020 Decadal Survey White Paper. arXiv admin note: substantial text overlap with arXiv:0903.2433