| 单词 | pulsar |
| 释义 | pulsar From Longman Dictionary of Contemporary Englishpulsarpul‧sar /ˈpʌlsɑː $ -sɑːr/ noun [countable]TTSan object like a star that is far away in space and produces radiation and radio waves → quasarExamples from the Corpuspulsar• It is therefore another compact star, perhaps even a pulsar.• A variant of the suggestion is that the Sun has a pulsar as a companion.• The observation of slowing down of the orbital rotation of the binary pulsar 1913+16 is also discussed.• At present, parallax measurements for pulsars are few and barely significant.• Subsequent timing observations have shown the pulsar to be in a 5.74-day circular orbit with a low-mass companion.• One of the pulsar's original discoverers, Stanislav Djorjovski, reported finding a brighter star coinciding with the pulsar last November.• The pulsar is probably a different object.• A total of 112 pulse arrival times over a 120-day time interval were collected for this pulsar.Origin pulsar (1900-2000) pulse + -ar (as in quasar) |
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