Definitions for pulsar
ˈpʌl sɑrpul·sar

Princeton's WordNetRate this definition:0.0 / 0 votes

1. pulsarnoun

   a degenerate neutron star; small and extremely dense; rotates very fast and emits regular pulses of polarized radiation

WiktionaryRate this definition:3.0 / 1 vote

1. pulsarnoun

   A rotating neutron star that emits radio pulses periodically

2. Etymology: From pulsating star, patterned after quasar.

WikipediaRate this definition:0.0 / 0 votes

1. Pulsar

   A pulsar (from pulsating radio source) is a highly magnetized rotating neutron star that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed only when a beam of emission is pointing toward Earth (similar to the way a lighthouse can be seen only when the light is pointed in the direction of an observer), and is responsible for the pulsed appearance of emission. Neutron stars are very dense and have short, regular rotational periods. This produces a very precise interval between pulses that ranges from milliseconds to seconds for an individual pulsar. Pulsars are one of the candidates for the source of ultra-high-energy cosmic rays. (See also centrifugal mechanism of acceleration.) The periods of pulsars make them very useful tools for astronomers. Observations of a pulsar in a binary neutron star system were used to indirectly confirm the existence of gravitational radiation. The first extrasolar planets were discovered around a pulsar, PSR B1257+12 in 1992. In 1983, certain types of pulsars were detected that, at that time, exceeded the accuracy of atomic clocks in keeping time.

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1. pulsar

   A pulsar is a highly magnetized rotating neutron star or white dwarf that emits beams of electromagnetic radiation out of its magnetic poles. This radiation can be observed when the beam of emission is pointing towards the Earth, and manifests as a pulse that repeats with every rotation of the star. Pulsars are known for their incredibly precise and regular patterns of emission.

WikidataRate this definition:0.0 / 0 votes

1. Pulsar

   A pulsar is a highly magnetized, rotating neutron star that emits a beam of electromagnetic radiation. This radiation can only be observed when the beam of emission is pointing toward the Earth, much the way a lighthouse can only be seen when the light is pointed in the direction of an observer, and is responsible for the pulsed appearance of emission. Neutron stars are very dense, and have short, regular rotational periods. This produces a very precise interval between pulses that range from roughly milliseconds to seconds for an individual pulsar. The precise periods of pulsars makes them useful tools. Observations of a pulsar in a binary neutron star system were used to indirectly confirm the existence of gravitational radiation. The first extrasolar planets were discovered around a pulsar, PSR B1257+12. Certain types of pulsars rival atomic clocks in their accuracy in keeping time.

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1. pulsar

   Song lyrics by pulsar -- Explore a large variety of song lyrics performed by pulsar on the Lyrics.com website.

Matched Categories

1. • Neutron Star

Usage in printed sourcesFrom: 

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How to pronounce pulsar?

1. Alex

   US English

   David

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   Mark

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   Daniel

   British

   Libby

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   Mia

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   Karen

   Australian

   Hayley

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   Neerja

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   Oliver

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How to say pulsar in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of pulsar in Chaldean Numerology is: 5

2. Pythagorean Numerology

   The numerical value of pulsar in Pythagorean Numerology is: 6

Examples of pulsar in a Sentence

1. Teruaki Enoto:

   Out of more than 2,800 pulsars cataloged, the Crab pulsar is one of only a few that emit giant radio pulses, which occur sporadically and can be hundreds to thousands of times brighter than the regular pulses, after decades of observations, only the Crab has been shown to enhance its giant radio pulses with emission from other parts of the spectrum.

2. Ted Williams:

   But there is another class of compact objects called white dwarfs, bigger, the size of the earth. So rather than 10 kilometers in size we are looking at 6,000 kilometers and we’ve just discovered the very first white dwarf pulsar.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=pulsar
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Pulsar
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Pulsar
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=pulsar
6. ^ Usage in printed sources
   https://books.google.com/ngrams/graph?content=pulsar