Read the Beforeitsnews.com story here. Advertise at Before It's News here.
Profile image
By Alton Parrish (Reporter)
Contributor profile | More stories
Story Views
Now:
Last hour:
Last 24 hours:
Total:

Live Fast Die Young Galaxies: Galaxies Lose The Gas That Keeps Them Alive

% of readers think this story is Fact. Add your two cents.


Galaxies can die early because the gas they need to make new stars is suddenly ejected, research published today suggests.

An image showing galaxy J0836, the approximate location of the black hole residing at the galaxy’s core, and the expelled gas reservoir. Credit: ICRAR.

Credit: ICRAR

Most galaxies age slowly as they run out of raw materials needed for growth over billions of years. But a pilot study looking at galaxies that die young has found some might shoot out this gas early on, causing them to redden and kick the bucket prematurely.

Astrophysicist Ivy Wong, from the University of Western Australia node of the International Centre for Radio Astronomy Research (ICRAR), said there are two main types of galaxies; ‘blue’ galaxies that are still actively making new stars and ‘red’ galaxies that have stopped growing.

Most galaxies transition from blue to ‘red and dead’ slowly after two billion years or more, but some transition suddenly after less than a billion years—young in cosmic terms.

Dr Wong and her colleagues looked for the first time at four galaxies on the cusp of their star formation shutting down, each at a different stage in the transition.

The researchers found that the galaxies approaching the end of their star formation phase had expelled most of their gas.

Dr Wong said it was initially hard to get time on telescopes to do the research because other astronomers did not believe the dying galaxies would have any gas left to see.

The exciting result means the scientists will be able to use powerful telescopes to conduct a larger survey and discover the cause of this sudden shutdown in star formation.

Dr Wong said it is unclear why the gas was being expelled. “One possibility is that it could be blown out by the galaxy’s supermassive black hole,” she said.
“Another possibility is that the gas could be ripped out by a neighbouring galaxy, although the galaxies in the pilot project are all isolated and don’t appear to have others nearby.”

Swiss Federal Institute of Technology Professor Kevin Schawinski said the researchers predicted that the galaxies had to rapidly lose their gas to explain their fast deaths.
“We selected four galaxies right at the time where this gas ejection should be occurring,” he said. “It was amazing to see that this is exactly what happens!”

The study appeared in the journal Monthly Notices of the Royal Astronomical Society, published by Oxford University Press.

Contacts and sources:
ICRAR


Source:


Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!


Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST


Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)

Oxy Powder - Natural Colon Cleanser!  Cleans out toxic buildup with oxygen!

Nascent Iodine - Promotes detoxification, mental focus and thyroid health.

Smart Meter Cover -  Reduces Smart Meter radiation by 96%! (See Video).

Report abuse

    Comments

    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

    MOST RECENT
    Load more ...

    SignUp

    Login

    Newsletter

    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.