国产成人午夜高潮毛片|国产午夜精品一区二区在线观看|久久zyz资源站无码中文动漫|在线观看国产成人av天堂|成人精品一区日本无码网

Australian researchers study slow death of a galaxy in fine detail

Source: Xinhua| 2018-10-31 13:53:58|Editor: Yurou
Video PlayerClose

CANBERRA, Oct. 31 (Xinhua) -- Australian astronomers have observed the death of a galaxy in the finest detail ever.

Researchers from the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and Australian National University studied a rapid outflow of hydrogen from the Small Magellanic Cloud (SMC), a dwarf galaxy approximately 1 percent of the size of the Milky Way.

David McConnell, the co-author of the report from CSIRO Astronomy and Space Science (CASS), told Xinhua that the event left the SMC without enough Hydrogen to form new stars, meaning it will slowly die with its current stars.

He said that the team was able to observe the event in such fine detail thanks to the CSIRO's powerful Australian Square Kilometer Array Pathfinder (ASKAP) radio telescope array in Western Australia (WA).

"The detail in an image depends on how widely the antennas are spread," McConnell told Xinhua.

"Previous images were made with a different telescope with antennas spread over about 400 metres.

"In this case the image was made with baselines up to 2000 m. So the image is much sharper."

The study marks the first time that the amount of mass lost by a dwarf galaxy has been clearly observed.

Experts expect the SMC to collide with the Milky Way and be absorbed into the larger galaxy; an event that McConnell said would have "minor" implications for the Milky Way because of the SMC's small mass.

The research team came to the conclusion that the outflow of hydrogen was caused by supernovae in the SMC.

"The outflow of hydrogen is observed to originate in regions of high-star formation rate," McConnell said.

"Some of the stars that form are large - many times more massive than our Sun, and these big stars live fast and die early; they are very hot and often have a powerful wind coming of them; and when they die, they explode and blow themselves to bits (supernova).

"The main contribution to the outflow is probably the supernovae."

The findings were part of a larger study investigating the evolution of galaxies.

McConnell said in a CSIRO media release that ASKAP would be used to focus on how the SMC integrates into the Milky Way when that event occurs.

"ASKAP will go on to make state-of-the-art pictures of hydrogen gas in our own Milky Way and the Magellanic Clouds, providing a full understanding of how this dwarf system is merging with our own galaxy and what this teaches us about the evolution of other galaxies," he said.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001375717341
主站蜘蛛池模板: 日本妇人成熟免费| 免费国产污网站在线观看15| 无码少妇精品一区二区免费动态| 国产免费看插插插视频| 永久免费看一区二区看片| 狠狠狠一区二区三区| 亚洲熟妇av综合网| 欧洲精品久久久av无码电影| 亚洲欧美国产va在线播放| 亚洲女厕偷拍一区二区| 亚洲国产精品无码久久98| 国产农村黄aaaaa特黄av毛片 | 九九热在线视频观看这里只有精品| 色偷偷av一区二区三区| 国产在线亚州精品内射| 人妻丝袜一区二区三区四区av| 国内精品久久久久国产盗摄| 肥熟女一区二区三肥熟女| 欧美日韩大片一区二区三区| 宅男视频在线观看91一区二区| 国产一区二区三区在线电影| 亚洲 精品 综合 精品 自拍| 男女视频在线观看一区| 秋霞视频一区二区| 疯狂做受xxxx高潮视频免费| 2019久久久最新精品| 免费无码国产欧美久久18| 99久无码中文字幕一本久道| 无码人妻少妇伦在线电影| 又爽又黄又无遮挡网站动态图| 日本最新免费二区| 无码中文字幕人妻在线一区| 天天干天天射天天操 | 日韩亚洲欧美精品综合| 观看国产色欲色欲色欲www| 亚洲熟妇无码一区二区三区导航| 久久亚洲精品无码va白人极品| 国产99视频精品免费观看6| 成人国产精品一区二区免费看| 99精品国产高清一区二区麻豆| 亚洲精品国产综合久久久久紧|