Astrophysics (Index)About

X-ray source

(something in the sky generating X-ray signal)

An X-ray source is an object, or a location in the celestial sphere from which X-rays are detected. The term X-ray source avoids interpretation (i.e., any declaration what kind of object is producing the X-rays), though it is often used even when a certain type of source is assumed. X-ray astronomy began in full with the development of X-ray space observatories. Example sources:

Shock and magnetic fields can be factors in producing the heat to produce discernible X-ray black-body radiation. Stars (e.g., the Sun) produce X-rays, such as that from the corona which includes plasma significantly hotter than the Sun's surface. X-ray is detected from some pre-main-sequence stars, some early stars, and some cool stars such as M dwarfs and brown dwarfs.

(X-ray,object type)
Further reading:
GXGX 339-4general for "galactic X-ray source"

Referenced by pages:
active galactic nucleus (AGN)
AGN corona
Cassiopeia A
Chandra Deep Field South (CDFS)
color-magnitude diagram (CMD)
Compton reflection
observational astronomy
Puppis A
quasi-periodic oscillation (QPO)
rare designator prefixes
Rosat Bright Survey (RBS)
ultraluminous X-ray source (ULX)
X-ray luminous galaxy cluster
X-ray burster (XRB)