Featured Research

from universities, journals, and other organizations

Los Alamos Researcher Says "Black Holes" Aren't Holes At All

Date:
April 23, 2002
Source:
Los Alamos National Laboratory
Summary:
Researchers from the U.S. Department of Energy's Los Alamos National Laboratory and the University of South Carolina have provided a hypothesis that "black holes" in space are not holes at all, but instead are more akin to bubbles.

ALBUQUERQUE, N.M., April 21, 2002 - Researchers from the U.S. Department of Energy's Los Alamos National Laboratory and the University of South Carolina have provided a hypothesis that "black holes" in space are not holes at all, but instead are more akin to bubbles.

Researcher Emil Mottola of Los Alamos' Theoretical Division today presented a new explanation for black holes at the American Physical Society annual meeting in Albuquerque, N.M. Pawel Mazur of the University of South Carolina is Mottola's co-author. The researchers' explanation redefines black holes not as "holes" in space where matter and light inexplicably disappear into another dimension, but rather as spherical voids surrounded by an extremely durable form of matter never before experienced on Earth. Mazur and Mottola call the extraordinary objects Gravastars.

The Gravastar explanation for black holes helps provide answers to some of the daunting questions raised by traditional black-hole descriptions. Based on earlier-held astrophysical explanations, black holes form in space when stars reach the end of their lives and collapse in on themselves. According to black hole theory, the matter from these dying stars occupies a tiny amount of space - a mere pinpoint - and creates a mind-boggling gravitational field so powerful that nothing can escape, not even light.

Mottola and Pawel suggest that while some degree of collapsing does take place in a dying star, the collapse proceeds only to a certain point. At that point, the intense gravity of the dying star transforms the star's matter into an entirely new phase. Mottolla describes this phase as similar to a Bose-Einstein condensate, a phase of matter recently observed in a laboratory setting and the subject of scientific excitement in the past few years.

On Earth, a Bose-Einstein condensate forms when matter is plunged to very low temperatures approaching Absolute Zero, the theoretical temperature at which all atomic motion - the motion of electrons, protons and all other subatomic particles within an individual atom - is believed to cease. When matter is cooled sufficiently to become a Bose-Einstein condensate, the atoms that make up the matter enter a strange new phase. The atoms all reach the same energy state, or quantum state, and they coalesce into a blob of material called a "super atom." The properties of Bose-Einstein condensates are the subject of intense study and many physicists are working to understand them.

Mottola and Mazur believe that dying stars collapse to the "Event Horizon" - in essence the point of no return for objects entering the gravitational field of a black hole. At this point, the matter in the dying star transforms to a new state of matter that forms a Gravastar. According to the two researchers, the dying star's matter creates an ultra-thin, ultra-cold, ultra-dark shell of material that is virtually indestructible. The new form of gravitational energy in the interior is akin to a Bose-Einstien condensate, although it appears on the inside to be a bubble of vacuum, hence the term Gra (vitational) Va (cuum) Star, or Gravastar.

"Since this new form of matter is very durable, but somewhat flexible, like a bubble, anything that became trapped by its intense gravity and smashed into it would be obliterated and then assimilated into the shell of the Gravastar," Mottola said. "However, any matter in the vicinity that fell onto the surface could be re-emitted as another form of energy, which would make Gravastars potentially much more powerful emitters of radiation than black holes, which simply swallow the material."

The space trapped inside the Gravastar's shell is a similarly uncanny conceptually. The interior of the Gravastar would be totally warped space-time (the traditional three dimensions plus time). According to the researchers, this interior space would exert an outward force on the shell, adding to its durability.

Although unconventional, Mottola and Mazur's Gravastar explanation for black holes does solve at least one serious quandary created by black hole theory. Under a black-hole scenario, the amount of entropy created in a black hole would become nearly infinite. Physicists have struggled for years to account for the huge entropy of black holes, and largely have failed. Unlike their black hole counterparts, Gravastars would have a very low entropy.

Mottola and Mazur continue to refine their theory and are working on a concept behind rotating Gravastars. They even suggest that the universe we now know and live in may be the interior of a Gravastar.

"These are fascinating concepts to think about," Mottola said. "I look forward to exploring this hypothesis further."

Los Alamos National Laboratory is operated by the University of California for the U.S. Department of Energy.

For more Los Alamos news releases, visit World Wide Web site http://www.lanl.gov/external/news/releases


Story Source:

The above story is based on materials provided by Los Alamos National Laboratory. Note: Materials may be edited for content and length.


Cite This Page:

Los Alamos National Laboratory. "Los Alamos Researcher Says "Black Holes" Aren't Holes At All." ScienceDaily. ScienceDaily, 23 April 2002. <www.sciencedaily.com/releases/2002/04/020423075643.htm>.
Los Alamos National Laboratory. (2002, April 23). Los Alamos Researcher Says "Black Holes" Aren't Holes At All. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2002/04/020423075643.htm
Los Alamos National Laboratory. "Los Alamos Researcher Says "Black Holes" Aren't Holes At All." ScienceDaily. www.sciencedaily.com/releases/2002/04/020423075643.htm (accessed October 2, 2014).

Share This



More Space & Time News

Thursday, October 2, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Astronomers Spot Largest, Brightest Solar Flare Ever

Astronomers Spot Largest, Brightest Solar Flare Ever

Newsy (Oct. 1, 2014) — The initial blast from the record-setting explosion would have appeared more than 10,000 times more powerful than any flare ever recorded. Video provided by Newsy
Powered by NewsLook.com
French Apple Fans Discover the Apple Watch

French Apple Fans Discover the Apple Watch

AFP (Sep. 30, 2014) — Apple fans in France discover the latest toy, the Apple Watch. The watch comes in two sizes and an array of interchangeable, fashionable wrist straps. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
The Water You Drink Might Be Older Than The Sun

The Water You Drink Might Be Older Than The Sun

Newsy (Sep. 27, 2014) — Researchers at the University of Michigan simulated the birth of planets and our sun to determine whether water in the solar system predates the sun. Video provided by Newsy
Powered by NewsLook.com
First Woman Cosmonaut in 17 Years Blasts Off for ISS

First Woman Cosmonaut in 17 Years Blasts Off for ISS

AFP (Sep. 26, 2014) — A Russian Soyuz spacecraft carrying an American astronaut and two Russian cosmonauts, including the first woman cosmonaut in 17 years, blasted off on schedule Friday. Duration: 00:35 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins