INFINIX XCLUB-INFINIX MOBILITY COMMUNITY OFFICIAL FORUM

 找回密码
 Register
搜索
热搜: XStore
查看: 6|回复: 1

Mysterious light flash seen from black hole Sag A* at the heart of the Milky Way

[复制链接]

2427

Threads

110K

Posts

110K

Xpoints

Golden Star LV25

4.0xclubXCLUB TOP FAN sign star1sign star2sign star3post star1post star2post star3post star4sign star4post star5

发表于 2019-08-14 11:53:46 来自手机 | 显示全部楼层 |阅读模式
[p][img alt="Mysterious light flash seen from black hole Sag A* at the heart of the Milky Way" title="Mysterious light flash seen from black hole Sag A* at the heart of the Milky Way" src="https://images.firstpost.com/fpimages/1200x800/fixed/jpg/2019/08/sgr_lg.jpg" width="360" height="270"]

[p]The black hole at the centre of our Milky Way was seen and scientists are caught it growing 75 times brighter and subsiding. This is pretty unusual, according to astronomers, since the Milky Way's black hole, Sagittarius A*, is tame and calm, and has pretty minimal fluctuations in brightness for as long as it has been observed.

[p dir="ltr"]Astronomer Tuan Do from the University of California, Los Angeles told [a rel="nofollow" href="https://www.sciencealert.com/our-galaxy-s-supermassive-black-hole-just-mysteriously-got-really-really-bright" dir="ltr"][strong dir="ltr"][em dir="ltr"]ScienceAlert[/em][/strong][/a] in an interview, "I was pretty surprised at first and then very excited. The black hole was so bright I at first mistook it for the star S0-2, because I had never seen Sag A* that bright. Over the next few frames, though, it was clear the source was variable and had to be the black hole. I knew almost right away there was probably something interesting going on with the black hole."

[div][/div][p]When asked when this light fluctuation took place, Do tweeted saying, "Depending on your point of view, this happened either on 13 May 2019 UT or 26,000 years ago." He and his team observed this event when they were using the WM Keck Observatory in Hawaii and took a time-lapse of two hours.

[div][/div][p]The light that can be seen in the video is actually from the gas and dust swirling around the black hole, and not the black hole itself. The flash of light could mean that something has gotten close enough to the black hole and fallen into it. But no one knows the exact reason.

[p]The supermassive black hole Sagittarius A* located in the middle of the Milky Way. Image credit: NASA

[p]Astronomers still need plenty of data to confirm their theories about the lights flash — and the collection process is on.

[p dir="ltr"]There are only a few weeks left before the black hole will be visible from the Keck Observatory. Other telescopes, NASA's Chandra, Spitzer, Swift, and ALMA, are all looking at Sag A* and their additional data should help get to the bottom of what caused the surprising event. Everything astronomer know about the occurrence [a rel="nofollow" href="https://arxiv.org/abs/1908.01777" dir="ltr"][strong dir="ltr"]was published[/strong][/a] in the journal [em dir="ltr"]The Astrophysical Journal Letters. [/em]

Infinix Hot s3 specialist "The Day of Colors"
回复

使用道具 举报

940

Threads

110K

Posts

110K

Xpoints

Golden Star LV24

sign star1post star1post star2sign star2Xclub Kol

发表于 2019-08-14 19:10:56 来自手机 | 显示全部楼层
Good info
回复

使用道具 举报

您需要登录后才可以回帖 登录 | Register

本版积分规则

Infinix Official Website|Infinix official mall|infinix Note 4|INFINIX XCLUB-INFINIX MOBILITY COMMUNITY OFFICIAL FORUM

GMT+8, 2019-08-23 04:30 , Processed in 0.126561 second(s), 21 queries .

Powered by Discuz! X3.4

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表