英语词汇“pulsars”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Example Sentences

Recent Examples on the Web Scientists have discovered a pulsar ripping through space at over a million miles per hour.

Joshua Hawkins, BGR, 21 June 2022 The ancient planet orbits both a pulsar and an ultra-dense white dwarf, itself another supernova remnant.

John Wenz, Popular Mechanics, 25 Aug. 2022 The researchers behind the detection didn’t have enough to definitively pin the FRB on a pulsar, Shami Chatterjee, an astrophysicist at Cornell University and a co-author on the new research, told me.

Marina Koren, The Atlantic, 15 July 2022 This animation shows a black widow pulsar together with its small stellar companion.

Jennifer Ouellette, Ars Technica, 4 Aug. 2022 Your average pulsar spins at roughly one rotation per second, or 60 per minute.

Jennifer Ouellette, Ars Technica, 4 Aug. 2022 Types of neutron stars, a pulsar is a neutron stars that emits beams of radio waves and appears to pulse as the star rotates while a magnetar has extreme magnetic fields.

Jamie Carter, Forbes, 16 July 2022 Professor Plum could be a pulsar, a type of neutron star that rotates fast and spits beams of radiation from its poles.

Marina Koren, The Atlantic, 15 July 2022 If it is indeed caused by a radio pulsar or magnetar.

Joshua Hawkins, BGR, 14 July 2022 See More

Word History

Etymology

puls(ating) + -ar (in quasar)

Note: The coinage was apparently made by the astronomers Jocelyn Bell Burnell (born 1943 in Northern Ireland) and Antony Hewish (born 1924 in England), who discovered the objects in November, 1967. The Oxford English Dictionary, 3rd edition, cites the following from the Daily Telegraph (March 5, 1968, p. 21): "The name Pulsar (Pulsating Star) is likely to be given to it … Dr. A. Hewish … told me yesterday: '…I am sure that today every radio telescope is looking at the Pulsars.'" The word pulsar was not used in the first formal report of the discovery (A. Hewish, S.J. Bell, et al., "Observation of a Rapidly Pulsating Radio Source," Nature, vol. 217, February 24, 1968, pp. 709-13).

First Known Use

1968, in the meaning defined above

单词	pulsars
释义	pulsar noun pul·sar ˈpəl-ˌsär : a celestial source of pulsating electromagnetic radiation (such as radio waves) characterized by a short relatively constant interval (such as .033 second) between pulses that is held to be a rotating neutron star Example Sentences Recent Examples on the Web Scientists have discovered a pulsar ripping through space at over a million miles per hour. Joshua Hawkins, BGR, 21 June 2022 The ancient planet orbits both a pulsar and an ultra-dense white dwarf, itself another supernova remnant. John Wenz, Popular Mechanics, 25 Aug. 2022 The researchers behind the detection didn’t have enough to definitively pin the FRB on a pulsar, Shami Chatterjee, an astrophysicist at Cornell University and a co-author on the new research, told me. Marina Koren, The Atlantic, 15 July 2022 This animation shows a black widow pulsar together with its small stellar companion. Jennifer Ouellette, Ars Technica, 4 Aug. 2022 Your average pulsar spins at roughly one rotation per second, or 60 per minute. Jennifer Ouellette, Ars Technica, 4 Aug. 2022 Types of neutron stars, a pulsar is a neutron stars that emits beams of radio waves and appears to pulse as the star rotates while a magnetar has extreme magnetic fields. Jamie Carter, Forbes, 16 July 2022 Professor Plum could be a pulsar, a type of neutron star that rotates fast and spits beams of radiation from its poles. Marina Koren, The Atlantic, 15 July 2022 If it is indeed caused by a radio pulsar or magnetar. Joshua Hawkins, BGR, 14 July 2022 See More Word History Etymology puls(ating) + -ar (in quasar) Note: The coinage was apparently made by the astronomers Jocelyn Bell Burnell (born 1943 in Northern Ireland) and Antony Hewish (born 1924 in England), who discovered the objects in November, 1967. The Oxford English Dictionary, 3rd edition, cites the following from the Daily Telegraph (March 5, 1968, p. 21): "The name Pulsar (Pulsating Star) is likely to be given to it … Dr. A. Hewish … told me yesterday: '…I am sure that today every radio telescope is looking at the Pulsars.'" The word pulsar was not used in the first formal report of the discovery (A. Hewish, S.J. Bell, et al., "Observation of a Rapidly Pulsating Radio Source," Nature, vol. 217, February 24, 1968, pp. 709-13). First Known Use 1968, in the meaning defined above pulsars noun plural of pulsar as in quasars Synonyms & Similar Words Relevance quasars supernovas supernovae novae subdwarfs novas supergiants variables superclusters neutron stars binary stars brown dwarfs white dwarfs lodestars red stars variable stars red dwarfs galaxies gassers fixed stars loadstars giant stars brown dwarves red giants dwarves dwarfs luminaries suns clusters spheres constellations
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pulsar

noun

Example Sentences

Word History

noun