pulsar
pronunciation
How to pronounce pulsar in British English:
UK [ˈpʌlsɑ:(r)]
How to pronounce pulsar in American English:
US [ˈpʌlˌsɑr]
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- Noun:
- a degenerate neutron star; small and extremely dense; rotates very fast and emits regular pulses of polarized radiation
Word Origin
- pulsar (n.)
- 1968, from pulse (n.1), the form on analogy of quasar. When discovered in 1967, they were thought perhaps to be signals from alien civilizations and astronomers informally dubbed them LGM for "Little Green Men."
Example
- 1. As of 2007 , three extrasolar planets have been confirmed in orbit around this pulsar .
- 2. The position of the pulsar at the upper right end of the tail is seen by mousing over the image .
- 3. The white source near the center of the image is a dense , rapidly rotating neutron star , or pulsar , all that remains of a core-collapse supernova explosion .
- 4. The pulsar is a rapidly spinning neutron star which is spewing energy out into the space around it to create complex and intriguing structures , including one that resembles a large cosmic hand .
- 5. At the center of this image made by nasa 's chandra x-ray observatory is a very young and powerful pulsar , known as psr b1509-58 , or b1509 for short .