Image Details
Caption: Figure 2.
The stellar and astrosphere model and observing geometry. (a) The modeled distribution of neutral hydrogen number-density in the astrosphere. The directions of upwind and the observer are marked by arrows. (b) The modeled Lyα flux density profile of the central star. (c) An illustration of the observing geometry.
© 2026. The Author(s). Published by the American Astronomical Society.