Massive and Evolved Stars with the ngVLA

TL;DR

The ngVLA will enable detailed imaging and analysis of massive and evolved stars, revealing stellar winds, binary interactions, and cluster dynamics with unprecedented resolution and sensitivity.

Contribution

This paper highlights the potential of the ngVLA for advancing our understanding of massive star phenomena through high-resolution radio observations.

Findings

Direct imaging of stellar winds in massive stars.

Detection of intermediate-mass stripped stars in binaries.

Measurement of stellar masses in massive binary systems.

Abstract

The Next Generation Very Large Array will have excellent sensitivity for detecting the thermal emission from massive stars and from red giants. This will allow direct imaging of the winds for a large number of hot massive stars. It will also allow using the radio emission for the massive stars as a way to detect stars to allow high resolution measurements can be made, even with large extinction. A few examples of the utility of the high resolution measurements are given: dynamics of globular clusters with red giants, detection of intermediate mass stripped stars in binaries, and measurement of masses of stars in massive binaries.