中文字幕网伦射乱中文-超清中文乱码字幕在线观看-亚洲v国产v欧美v久久久久久-久久性网-手机在线成人av-成人六区-国产人与zoxxxx另类一一-青青草国产久久精品-蜜桃av久久久一区二区三区麻豆-成人av一区二区免费播放-在线视频麻豆-www爱爱-成人免费看片视频-性欧美老肥妇喷水-五月99久久婷婷国产综合亚洲-亚洲最色-各种含道具高h调教1v1男男-91丨porny丨国产-国产精品无码专区在线观看不卡-大香伊人

Israeli astronomers discover "prey" of a dwarf galaxy by its neighbors

Source: Xinhua| 2018-11-21 16:17:08|Editor: xuxin
Video PlayerClose

JERUSALEM, Nov. 21 (Xinhua) -- Israeli researchers have found new evidence of the process of "swallowing" a dwarf galaxy by two large galaxies close to it, according to Tel Aviv University on Tuesday.

The discovered celestial object is in the shape of a tadpole with an elliptical "head," centered at two galaxies and behind it there is a huge "tail" of about 500,000 light-years.

It was discovered about 300 million light-years from Earth.

Swallowing of galaxies takes about a billion years and occurs when the stars of the dwarf galaxy are attracted by the gravitational force of the large galaxies.

The head of the tadpole probably originated from the stars of the dwarf galaxy, which were close to the two "predator" galaxies observed in the center of the head.

The giant tail is made up of the remains of farther stars in the disintegrating galaxy. The observation by the researchers caught the decomposition process in full swing.

The group of galaxies observed in this study is called "HCG 98" and consists of a dense group of four galaxies.

In observations and deciphering, the astronomers used special technology - a telescope that enables observation and photography of a relatively large space in the sky, and a method of processing that brings together many photographs of the same area.

This method allows researchers to watch even very pale bodies.

The researchers also included scientists from the University of California and the Russian Academy of Sciences. The observations were made at the Wise Observatory in southern Israel.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001376221331