pulsar en · NOUN
Pronunciation
- (US) audio
- /ˈpʌl.sɑːr/
Etymology
Blend of pulsating + (radio) star, patterned after quasar. Coined by British astronomers Antony Hewish and Jocelyn Bell in 1968, and first used in print in The Daily Telegraph. By surface analysis, pulse + -ar
Meanings
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A rotating neutron star that emits radio pulses periodically.
Rapidly rotating dead stars, pulsars are so named because as they spin, they release beams of electromagnetic radiation across space that appear to pulse like celestial lighthouses. But a pulsar called PSR J1023+0038, located about 4,500 light-years away from Earth in the Sextans constellation, is even more unusual in that some of the pulses are brighter than others, almost like it’s switching between different modes.
2023 August 30, Ashley Strickland, “Astronomers solve the puzzle of an unusual pulsing dead star”, in CNN:
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| pulsars | Number=Plur | lexicographic |
Deriveds
rotation-powered pulsar · pulsar clock · PSR · binary pulsar · double pulsar · accretion-powered pulsar · millisecond pulsar · pulsarlike · pulsar wind nebula · gamma pulsar · circumpulsar · X-ray pulsar · radiopulsar · optical pulsar
Hypernyms
variable star · star · neutron star
Hyponyms
gamma pulsar · RRAT · millisecond pulsar · accretion-powered pulsar · rotation-powered pulsar · optical pulsar · SGR · magnetar
Relateds
heavenly body · astrophysical source · astronomical object · celestial object · astrophysical object
Synonyms
Translations (42)
ru пульса́р (rotating neutron star) · no pulsar (rotating neutron star) · vo pebastel (rotating neutron star) · uk пульса́р (rotating neutron star) · be пульса́р (rotating neutron star) · tr atarca (rotating neutron star) · cs pulzar (rotating neutron star) · hy պուլսար (rotating neutron star) · ar نباض (rotating neutron star) · fi pulsari (rotating neutron star) · pt pulsar (rotating neutron star) · sv pulsar (rotating neutron star) · da pulsar (rotating neutron star) · io pulsaro (rotating neutron star) · fr pulsar (rotating neutron star) · ca púlsar (rotating neutron star) · th พัลซาร์ (rotating neutron star) · el πάλσαρ (rotating neutron star) · eo pulsaro (rotating neutron star) · es púlsar (rotating neutron star) · ka პულსარი (rotating neutron star) · pl pulsar (rotating neutron star) · cmn 脈衝星 /脉冲星 (rotating neutron star) · cs pulsar (rotating neutron star) · vi sao xung (rotating neutron star) · de Pulsar (rotating neutron star) · tr pulsar (rotating neutron star) · ja パルサー (rotating neutron star) · ko 펄서 (rotating neutron star) · lt pulsaras (rotating neutron star) · sh pùlsār (rotating neutron star) · nl pulsar (rotating neutron star) · lv pulsārs (rotating neutron star) · sh пу̀лса̄р (rotating neutron star) · hu pulzár (rotating neutron star) · ro pulsar (rotating neutron star) · bg пулса́р (rotating neutron star) · ga pulsár (rotating neutron star) · he פולסר (rotating neutron star) · ms pulsar (rotating neutron star) · sl púlzar (rotating neutron star) · fa تپاخت (rotating neutron star)
wikipedia: The Daily Telegraph · wikipedia: Antony Hewish · wikipedia: Jocelyn Bell Burnell