www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global EditionASIA 中文雙語Fran?ais
Business
Home / Business / Technology

No aliens found yet, but 'heartbeats' in universe heard

By Yu Fei, Li Mengxin and Qi Jian | China Daily | Updated: 2017-12-23 11:00
Share
Share - WeChat
Feed cabin of the FAST. [Photo by Liu Xu and Ou Dongqu / Xinhua]

Pulsar-searching club

The first two confirmed pulsars discovered by FAST were detected on the nights of Aug 22 and 25 respectively. But Li couldn't recall the scene exactly as FAST has already found dozens of pulsar candidates thanks to its high sensitivity.

"As a matter of fact, we can detect high-quality pulsar candidates almost every night," says Li.

When the first pulsar was discovered half a century ago, China was still struggling in poverty and turmoil. As a result, none of the previous more than 2,700 discoveries of pulsars was made by China.

But now, as China builds a well-off society, it has the capability to explore the strange and mysterious celestial bodies, and endeavor to answer those ultimate questions: How was the universe created? Where did we come from? Are we lonely in the universe?

For Chinese astronomers to lead in global astronomy, they must have advanced astronomical instruments. The completion of FAST, the largest astronomical construction in Chinese history, cost about 1.2 billion yuan ($182 million), more than 20 years and tremendous efforts of the scientists and engineers.

Now, China is in the pulsar-searching club.

Li predicted that after it starts formal operation in 2019, FAST will be able to find over a hundred pulsars per year. The telescope is expected to discover twice the number of pulsars currently known.

It is also expected to find 50 to 80 pulsars in M31, the nearest major galaxy to the Milky Way. It is the only radio telescope in the world with this capability.

A new era

Li, who did research at the California Institute of Technology and NASA in the United States, returned to China in 2012 for the construction of FAST, joining the long and heroic efforts led by Chinese scientist Nan Rendong. In the remote valley in Guizhou, he lived in the barracklike housing without even a bathroom for several years.

"Scientific research is the process of seeking truth. Like detective work, painting or building furniture, you might encounter many obstacles on the way, but you will also see gradual progress, and finally get something that is incredibly important or beautiful. The more bitter the hardship, the sweeter the happiness," says Li.

This year is momentous for China' s astronomical community. On June 15, China' s space telescope, the Hard X-ray Modulation Telescope (HXMT), was launched to detect black holes and pulsars. The initiator of the satellite is Li Tipei, a renowned astrophysicist and academician of the CAS.

"In modern history, China has lagged behind in the world, and it is the hope of our generation to put China at the forefront of the global natural science community," says Li Tipei.

Li Di says FAST takes in the past and brings about the future. "The era of systematic pulsar research with Chinese telescope has just started. We hope to make the telescope an important scientific instrument of mankind."

A multi-beam receiver will be installed on FAST to survey space with multiple scientific objectives. That means it can obtain data on pulsars, celestial spectrums and fast radio bursts in one scan. Through this original technique, scientists will be able to find more than 1,000 pulsars, over 100,000 galaxies and dozens of fast radio bursts.

"We will rely on self-innovative equipment and advanced observation methods to make systematic scientific discoveries." Li says. "It will be the dawn of a new era."

"For human beings, exploring the unknown and satisfying curiosity is an equally essential right as eating and sleeping. Exploration of the unknown will inspire human creativity, enabling us to make unprecedented achievements and find imaginative solutions, which is extremely valuable."

|<< Previous 1 2   
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
CLOSE
 
主站蜘蛛池模板: 亚洲久久久久久久 | 精品久久香蕉国产线看观看亚洲 | 久久无码av三级 | 在线不卡一区二区三区日韩 | 亚洲码一区二区三区 | 日韩午夜三级 | 久久成人免费观看全部免费 | 岛国毛片在线观看 | 国产一区二区三区不卡在线观看 | 99精品视频一区在线观看miya | 91国语精品自产拍在线观看一 | 俄罗斯一级毛片免费播放 | 国产在线精品一区二区三区不卡 | 伊人网在线免费视频 | 亚洲一级网站 | 久久亚洲国产成人亚 | 欧美日本一区二区三区生 | 男人添女人下面免费毛片 | 国产三级久久 | 亚洲男人的天堂久久精品 | 成人高清在线观看 | 国产亚洲欧美在线人成aaaa | 国产丶欧美丶日韩丶不卡影视 | 收集最新中文国产中文字幕 | 成人精品视频网站 | 国产3区| 99爱视频精品免视看 | 国产一级一级毛片 | 亚欧国产| 欧美亚洲国产成人综合在线 | 美女毛片在线看 | 国产精品亚洲综合网站 | 国产精品一国产精品免费 | 波多野在线播放 | 中文精品久久久久国产不卡 | 欧美成人一区二区三区 | 精品久久久久久亚洲 | 亚洲一区欧美一区 | 一区二区三区视频在线 | 国产在线一区二区三区在线 | 99手机在线视频 |