x
uploads/pulsar.jpg

pulsar n.【天文學】脈沖星。

pulsate

The pulsar has participated the academic evaluations organized by national “ 863 ” ( national high technology research and development program ) since 2003 , and got good grades 2003年以來多次參加國家“ 863 ”組織的學術評測,并取得了較好成績。

One of the most exotic objects known to modern astronomers , the pulsar is a neutron star , the spinning remnant of the collapsed stellar core 其中最為現代天文學家了解的是:脈沖星是一顆中子星,它是一顆高速自旋的塌縮恒星核爆炸之后的殘留物。

Pulsar signals should be nearly sinusoidal after the doppler shifts are taken out , so fourier transforms pick them up pretty easily 當多普勒偏移去除后,脈沖星的信號應當近乎是正弦曲線的樣子,所以傅里葉變換可以很容易的去除多普勒效應。

Yet the march 1979 burster , with an apparent rotation period of eight seconds , was spinning much more slowly than any radio pulsar then known 但1979年3月那次的爆炸源,看起來卻有八秒的周期,自轉速率要比當時所知的任何波霎還要慢得多。

For example , the simultaneous multiple wavelength observation of certain pulsars help astronomers to more precisely determine their radiation emission mechanism 例如利用這觀測法來觀測脈沖星,可幫助天文學家確定其輻射發放機制。

In theory , the first step toward producing a millisecond pulsar is the formation of a neutron star when a massive star goes supernova 理論上,形成一顆毫秒脈沖星的第一步,是一個大質量恒星在成為超新星而爆發后留下的中子星。

The renaissance . the inspiration of the pulsar collection . timepieces that incorporate the most modern technology and the high aesthetics of the golden age 文藝復興,琶莎手表靈感創新,時尚技術和高等審美組合的黃金時代。

One ramification of our calculations is that radio pulsars are neutron stars in which the large - scale dynamo has failed to operate 從我們的計算中,還可以附帶得到一點:無線電波霎正是無法形成大尺度發電機的中子星。

Perhaps the most famous pulsar lies within the crab nebula , the remnant of a supernova explosion that was observed in 1054 最有名的波霎,或許要算是蟹狀星云里頭的那顆了,這片星云是1054年觀測到的超新星爆炸的殘骸。

In all , 1 , 700 pulsar , comet and galaxy ups units have been delivered , representing a total installed power of around 4 mva 施耐德總共為這個項目交付了1700套pulsar 、 comet和galaxyups設備,總安裝功率達4mva 。

An x - ray binary system has been formed , and the neutron star has made the crucial second step toward becoming a millisecond pulsar 射線雙星就這樣形成了,于是這顆中子星就向成為毫秒脈沖星邁出了關鍵的第二步。

If the pulsar with submillisecond period would exist , it should be a strange star rather than a neutron star 如果一顆周期少于一毫秒的脈沖星真的存在的話,它便很可能會是一顆奇異星而不是中子星。

The pulsar rotates once every 33 milliseconds and is currently slowing at a rate of about 1 . 3 millisecond every century 該波霎每33毫秒自轉一周,其周期目前正以每世紀1 . 3毫秒的速率變慢。

Pulsar combines the high - speed and accuracy of a laser scanner with the working range and price of a typical ccd Pulsar既有激光掃描儀的快速準確性,又有典型ccd掃描儀的掃描景深和價格。

“ for the discovery of a new type of pulsar , a discovery that has opened up new possibilities for the study of gravitation 發現脈沖雙星,由此間接證實了愛因斯坦所預言的引力波的存在

The spooky blue interior glow is emitted by high - energy electrons accelerated by the crab ' s central pulsar 鬼魅的藍色內部光線是由被蟹狀星云中心脈沖星加速了的高能量電子發出的。

Pulsars and supernovae are shown on the sky because scientists believe they emit gravitational waves 天球上標識出了脈沖星和和超新星遺跡,因為科學家們相信它們都會發射出引力波。

Supernovae remnants can leave behind pulsars or spinning neutron stars that may produce gravitational waves 超新星遺跡中可能還存留有脈沖星或自旋中子星,而這些都會產生引力波。

From this , most young radio pulsars are inferred to have magnetic fields between 1012 and 1013 gauss 從這個論點來推斷,大部份年輕的無線電波霎應具有介于1012 ~ 1013高斯的磁場。