新航道 - 用心用情用力做教育!
咨询热线:400-011-8885
投诉电话:400-097-9266
AI客服 精准解答您的学习规划问题

托福阅读之Hubble spots a planet-eating star

2013-07-30    浏览:70     来源:新航道官网
免费咨询热线:400-011-8885

Scientists used Hubble data to create an image of the planet being swallowed.

 

The Hubble Space Telescope has captured evidence of a Sun-like star "eating" a nearby planet.

 

Astronomers knew that stars were capable of swallowing planets in orbit around them, but this is the first time the event has been "seen" so clearly.

 

Although the planet was too far away for Hubble to photograph, scientists have created an image of it, based on analysis of the telescope's data.

 

The discovery was published in the The Astrophysical Journal Letters.

 

The researchers say the planet, which is called Wasp-12b, may only have another 10 million years left before it is completely devoured.

 

It is so close to its star that it completes an orbit in 1.1 Earth days and is superheated to more than 1,500C.

 

Because of this proximity, the planet's atmosphere has ballooned to nearly three times the radius of Jupiter and is spilling material on to the star.

 

Carole Haswell from the UK's Open University led the research team. She explained: "We see a huge cloud of material around the planet which is escaping and will be captured by the star."

 

Hubble's detection of the cloud enabled scientists to draw conclusions about how it was generated.

 

Dr Haswell said: "We have identified chemical elements never before seen on planets outside our own Solar System."

 

Wasp-12 is a dwarf star located approximately 600 light-years away in the constellation Auriga.

 

The exoplanet was first discovered by the UK's Wide Area Search for Planets (Wasp) in 2008.

 
以上就是新航道托福频道为大家整理的托福阅读之Hubble spots a planet-eating star,希望对大家有帮助,更多资讯、资料请访问新航道托福阅读频道 http://www.xhd.cn/toefl/yuedu/
 
版权及免责声明
1.本网站所有原创内容(文字、图片、视频等)版权归新航道国际教育集团所有。未经书面授权,禁止任何形式的复制、转载或商用,违者将依法追究法律责任。本网站部分内容来源于第三方,转载仅为信息分享,不代表新航道观点,转载时请注明原始出处,并自行承担版权责任。
2.本网站内容仅供参考,不构成任何决策依据,用户应独立判断并承担使用风险,新航道不对内容的准确性、完整性负责,亦不承担因使用本网站内容而引发的任何直接或间接损失。
3.如涉及版权问题或内容争议,请及时与我们联系,电话:400-011-8885。
资料下载
手机号:
验证码: