国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线

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
主站蜘蛛池模板: 绥棱县| 柘荣县| 东源县| 黔江区| 竹北市| 康马县| 乳源| 内丘县| 元江| 茶陵县| 海宁市| 大兴区| 驻马店市| 晋宁县| 庐江县| 泾阳县| 天门市| 西安市| 长泰县| 阿荣旗| 临夏市| 东安县| 云南省| 麻江县| 大宁县| 桐庐县| 仲巴县| 巴青县| 韶关市| 灵丘县| 曲靖市| 广昌县| 土默特左旗| 旺苍县| 涡阳县| 金门县| 宣恩县| 定西市| 比如县| 岳普湖县| 仙居县|