 |
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • USE OF TEXT AND IMAGES • NEWSLETTER   
|
X-ray transient
An X-ray source that rises rapidly and unpredictably from a normally quiescent state, gaining in intensity by a factor of 1,000 or more, typically over a period of a week, before gradually fading to quiescence. Unlike the more permanent, stable sources observed in the X-ray sky, transients may not flare up again for years.
Also on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History