Monday, August 10, 2020
Contact us    |    Advertise    |   Help    |   Cookie Policy    |   Privacy Policy    RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

'Strange objects' spotted at the galactic core


Posted on Thursday, 16 January, 2020 | Comment icon 7 comments

An artist's impression of what 'G objects' might be like. Image Credit: Jack Ciurlo / UCLA
Scientists have discovered a new type of object that is so weird that it has been assigned a whole new class.
Found orbiting Sagittarius A* - the supermassive black hole situated at the center of the Milky Way galaxy - these perplexing astronomical peculiarities have been dubbed 'G objects'.

At a glance they appear to be giant gas clouds 100 times the size of the Earth's orbit around the Sun, but as they get nearer to the black hole they become strangely elongated.

"These objects look like gas but behave like stars," said physicist and astronomer Andrea Ghez.

The first two G objects (G2 and G2) were discovered two decades ago and now a team of astronomers from the University of California, Los Angeles has managed to find four more.

Even weirder still is the fact that these new additions (G3, G4, G5 and G6) have wildly different orbits.

"At the time of closest approach, G2 had a really strange signature," said Ghez.
"We had seen it before, but it didn't look too peculiar until it got close to the black hole and became elongated, and much of its gas was torn apart."

"It went from being a pretty innocuous object when it was far from the black hole to one that was really stretched out and distorted at its closest approach and lost its outer shell, and now it's getting more compact again."

So what exactly are these G objects ?

Astonomers believe that each object may in fact be a pair of binary stars that have merged together into a single large star surrounded by a vast cloud of dust and gas.

"Mergers of stars may be happening in the universe more often than we thought, and likely are quite common," said Ghez. "Black holes may be driving binary stars to merge."

"It's possible that many of the stars we've been watching and not understanding may be the end product of mergers that are calm now. We are learning how galaxies and black holes evolve."

Source: Science Alert | Comments (7)


Tags: Galaxy, Black Hole


Recent comments on this story
Comment icon #1 Posted by Piney on 16 January, 2020, 15:59
https://www.sciencedaily.com/releases/2020/01/200115132316.htm http://newsroom.ucla.edu/releases/astronomy-strange-objects-galaxy-black-hole The artist's rendition in the UCLA link is pretty freaky. 
Comment icon #2 Posted by DreadLordAvatar on 16 January, 2020, 19:54
The orbits of these G objects are absolutely fascinating, what a mess.  Perhaps some have collided with one another and formed massive G, only time will tell but unlikely will know in our lifetime.
Comment icon #3 Posted by Jujo-jo on 17 January, 2020, 4:54
Quoted: "It's possible that many of the stars we've been watching and not understanding may be the end product of mergers that are calm now." I find that paragraph a bit interesting. 
Comment icon #4 Posted by qxcontinuum on 23 January, 2020, 4:13
I am starting to believe that our planet is like a piece of rice sitting on a sidewalk during the rush hour. We are lucky to still exist after so much time.
Comment icon #5 Posted by Junior Chubb on 27 January, 2020, 17:29
The enigmatic G spot!
Comment icon #6 Posted by Crikey on 27 January, 2020, 21:42
  Yay, it's been sailing through space for billions of years but is still going strong despite being completely exposed and open to space, taking countless meteor hits and cosmic radiation etc.. "God hangs the earth on nothing" (Job 26:7)
Comment icon #7 Posted by 'Walt' E. Kurtz on 27 January, 2020, 22:47
It must be my lost socks


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

6751563
281160
185634

 
Reptile had a neck 3 times the length of its body
8-9-2020
Scientists have been studying how a prehistoric creature named Tanystropheus supported its insanely long neck.
Are we living in a giant deflated croissant ?
8-9-2020
Scientists have determined the most likely shape of the heliosphere which surrounds the solar system.
Woman digs 35ft tunnel to rescue son from jail
8-8-2020
A mother in Ukraine attempted to break her son out of jail by single-handedly digging an escape tunnel.
Prehistoric 'hell ant' found trapped in amber
8-8-2020
An ancient species of ant has been found frozen in time while right in the middle of devouring another insect.
Stories & Experiences
Black blob in my room/bed
7-23-2020 | Powell,TN U.S.
 
Transparent levitating ball
7-14-2020 | Santa Rosa, California
 
 
 
Grim reaper-like visitation
6-16-2020 | Canada
 
My monster catfish story
6-15-2020 | Dallas texas
 
Orb of light in room
5-9-2020 | USA/Texas/Waco
 
Not sleeping alone
5-9-2020 | Los Angeles
 
Glowing red eyes
5-9-2020 | Fields, Louisiana
 
Two creature sightings
5-1-2020 | Augusta and Louisana
 

         More stories | Send us your story
Featured Videos
Gallery icon 
NASA studies underwater 'white smoker' vents
Posted 4-17-2020 | 3 comments
Hydrothermal vents on the ocean floor can teach us about possible habitats on other worlds.
 
10 strange things about our solar system
Posted 3-17-2020 | 0 comments
A look at some of the most mysterious things about our solar system.
 
Lizzie - Scotland's other loch monster
Posted 3-8-2020 | 0 comments
Amelia Dimoldenberg investigates the Loch Ness Monster's neighbor.
 
 View: More videos
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.712 Unexplained-Mysteries.com (c) 2001-2020
Terms   |   Privacy Policy   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ