|Expected & Detected
X-ray emission from the outer atmospheres, or coronas, of stars of almost every
type: young and old, large and small.
Detection of X-ray flares from brown dwarfs, or failed stars. This discovery
provides a new way to study how the magnetic field changes on low-mass
stars as they age.
Chandra observations of massive stars suggest that some of these stars may
not be losing nearly as much mass in strong winds flowing away from the stars
as previously thought.
Radiation from a single massive star has triggered the formation of hundreds
of new stars.
Flares from very young stars are much more frequent and intense than on the
present-day Sun, and may actually aid the formation of planets around these stars
Evidence that the X-ray emitting hot gas from planetary nebulas comes from deep
within a Sun-like star that has neared the end of its evolution and will soon
become a white dwarf.