X-rays and fluctuating X-winds from protostars.
Abstract
Protostars emit more X-rays, hard and soft, than young Sun-like stars in more advanced stages of formation. The X-ray emission becomes harder and stronger during flares. The excess X-rays may arise as a result of the time-dependent interaction of an accretion disk with the magnetosphere of the central star. Flares produced by such fluctuations have important implications for the X-wind model of protostellar jets, for the flash-heating of the chondrules found in chondritic meteorites, and for the production of short-lived radioactivities through the bombardment of primitive rocks by solar cosmic rays.
- Publication:
-
Science
- Pub Date:
- 1997
- DOI:
- 10.1126/science.277.5331.1475
- Bibcode:
- 1997Sci...277.1475S
- Keywords:
-
- Protostars: Hard X Rays;
- Protostars: X-Ray Flares;
- Protostars: Stellar Winds;
- Protostars: Soft X Rays;
- Chondrules: X Rays