Featured Research

from universities, journals, and other organizations

Livermore Scientists Link Black Hole Radiation

Date:
May 23, 2003
Source:
University Of California - Berkeley
Summary:
Using images from the Keck Observatory and NASA's Chandra X-ray Observatory, Lawrence Livermore National Laboratory astrophysicists, in conjunction with scientists from Columbia and Cambridge universities, have discovered how the release of energy from massive black holes are shaping two distant galaxies.

LIVERMORE, Calif. -- Using images from the Keck Observatory and NASA's Chandra X-ray Observatory, Lawrence Livermore National Laboratory astrophysicists, in conjunction with scientists from Columbia and Cambridge universities, have discovered how the release of energy from massive black holes are shaping two distant galaxies.

For years, Livermore scientists have detected black holes radiating gas through jets and celestial winds in galaxies that are forming in the early universe (2 billion years after the beginning of our universe, which is now about 14 billion years old). These jets are believed to have swept up clouds of dust and gas and triggered the formation of billions of new stars over the course of millions of years.

Now, with images from Chandra, vast clouds of X-rays have been observed coming from black holes in the center of these two galaxies. The clouds combined with the gases, seen by Livermore scientists, pinpoint how super massive black holes shape and limit the growth of extremely massive galaxies.

"This is the first discovery of X-ray emissions from these galaxies," said Wil van Breugel, co-investigator on the project, who works at Livermore's Institute of Geophysics and Planetary Physics. "It's another piece of evidence that ties into the feedback mechanism of black holes and their role in forming galaxies. It's a new idea that brings many physical processes together."

The two galaxies (3C294 and 4C41.17) live in regions of space that contain a large number of galaxies. The gravity of the dark matter, gas and galaxies in these regions will eventually pull them together and cluster, forming some of the most massive objects in the universe.

Using Keck, astronomers have recently discovered giant clouds of 10,000 degree Celsius gas that coincide closely with the largest extent of the X-ray emissions observed by Chandra.

The data collected on both Chandra and Keck will be presented in an upcoming issue of the Monthly Notices of the Royal Astronomical Society and another paper to be published in the Astrophysical Journal.

Livermore scientists are contributing authors to the Astrophysical Journal article.

###

For images, go to http://www.llnl.gov/llnl/06news/NewsMedia/blackhome_images.html

Founded in 1952, Lawrence Livermore National Laboratory is a national security laboratory, with a mission to ensure national security and apply science and technology to the important issues of our time. Lawrence Livermore National Laboratory is managed by the University of California for the U.S. Department of Energy's National Nuclear Security Administration.


Story Source:

The above story is based on materials provided by University Of California - Berkeley. Note: Materials may be edited for content and length.


Cite This Page:

University Of California - Berkeley. "Livermore Scientists Link Black Hole Radiation." ScienceDaily. ScienceDaily, 23 May 2003. <www.sciencedaily.com/releases/2003/05/030523080330.htm>.
University Of California - Berkeley. (2003, May 23). Livermore Scientists Link Black Hole Radiation. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2003/05/030523080330.htm
University Of California - Berkeley. "Livermore Scientists Link Black Hole Radiation." ScienceDaily. www.sciencedaily.com/releases/2003/05/030523080330.htm (accessed April 17, 2014).

Share This



More Space & Time News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

New Baby Moon 'Peggy' Spotted In Saturn's Rings

New Baby Moon 'Peggy' Spotted In Saturn's Rings

Newsy (Apr. 15, 2014) A bump in the rings could be a half-mile-wide miniature moon. It was found by accident in Cassini probe images. Video provided by Newsy
Powered by NewsLook.com
Americas Glimpse Total Lunar Eclipse

Americas Glimpse Total Lunar Eclipse

AFP (Apr. 15, 2014) A total lunar eclipse, the first since December 2011, took place early Tuesday morning with the Americas getting the best glimpse. Duration: 1:19 Video provided by AFP
Powered by NewsLook.com
NASA Showcases Lunar Eclipse

NASA Showcases Lunar Eclipse

AP (Apr. 15, 2014) Star gazers in parts of North and South America got a rare treat early Tuesday morning - a total eclipse of the moon. (April 15) Video provided by AP
Powered by NewsLook.com
Spacecrafts Could Use Urine As Fuel Source

Spacecrafts Could Use Urine As Fuel Source

Newsy (Apr. 15, 2014) New research says the urea from urine could be recycled for fuel. Urea is filtered out of wastewater when making drinking water. Video provided by Newsy
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:
from the past week

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