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Chandra Data Helps Solve The Puzzle Of Why Galaxy Clusters

Chandra Data Helps Solve The Puzzle Of Why Galaxy Clusters Contain So Few Stars

Chuck Bednar for redOrbit.com - Your Universe Online New observations of the Perseus and Virgo galaxy clusters made using NASA’s Chandra X-ray Observatory suggest that turbulence may be the reason that hot gas there has been unable to cool,...

Latest Galaxy Stories

2014-10-27 16:20:29

WASHINGTON, Oct. 27, 2014 /PRNewswire-USNewswire/ -- The same phenomenon that causes a bumpy airplane ride, turbulence, may be the solution to a long-standing mystery about stars' birth, or the absence of it, according to a new study using data from NASA's Chandra X-ray Observatory. http://photos.prnewswire.com/prnvar/20081007/38461LOGO Galaxy clusters are the largest objects in the universe, held together by gravity. These behemoths contain hundreds or thousands of individual galaxies...

2014-10-21 23:05:29

Pamela Fleming, Executive Vice President, The Institute for Basic Research, Florida, announces that "The recently observed 'Red Moon' establishes the lack of expansion of the universe because the Moon sees Sunlight redshifted while passing through Earth's atmosphere without relative motion. This is evidence that, light reaching us from galaxies is redshifted without the expansion of the universe due to the replacement of Earth's atmosphere with intergalactic...

Abell 2744
2014-10-17 03:00:17

Provided by Felicia Chou, NASA Headquarters Peering through a giant cosmic magnifying glass, NASA’s Hubble Space Telescope has spotted a tiny, faint galaxy -- one of the farthest galaxies ever seen. The diminutive object is estimated to be more than 13 billion light-years away. This galaxy offers a peek back to the very early formative years of the universe and may just be the tip of the iceberg. “This galaxy is an example of what is suspected to be an abundant, underlying...

2014-10-16 16:20:41

WASHINGTON, Oct. 16, 2014 /PRNewswire-USNewswire/ -- Peering through a giant cosmic magnifying glass, NASA's Hubble Space Telescope has spotted a tiny, faint galaxy -- one of the farthest galaxies ever seen. The diminutive object is estimated to be more than 13 billion light-years away. http://photos.prnewswire.com/prnvar/20081007/38461LOGO This galaxy offers a peek back to the very early formative years of the universe and may just be the tip of the iceberg. "This galaxy is an...

Window To Early Universe Offered By Slow-Growing Galaxies
2014-10-16 03:29:41

Provided by Whitney Clavin, NASA's Jet Propulsion Laboratory What makes one rose bush blossom with flowers, while another remains barren? Astronomers ask a similar question of galaxies, wondering how some flourish with star formation and others barely bloom. A new study published in the Oct. 16 issue of the journal Nature addresses this question by making some of the most accurate measurements yet of the meager rates at which small, sluggish galaxies create stars. The report uses data...

APEX Reveals Hidden Star Formation In The Spiderweb Galaxy
2014-10-15 03:01:28

Provided by ESO Galaxy clusters are the largest objects in the Universe held together by gravity but their formation is not well understood. The Spiderweb Galaxy (formally known as MRC 1138-262) and its surroundings have been studied for twenty years, using ESO and other telescopes, and is thought to be one of the best examples of a protocluster in the process of assembly, more than ten billion years ago. But Helmut Dannerbauer (University of Vienna, Austria) and his team strongly...

big bang universe
2014-10-11 06:14:12

Chuck Bednar for redOrbit.com - Your Universe Online By measuring the radiation leaks in a large, densely-packed star-forming galaxy, astronomers have been able to learn more about how the universe evolved as the first stars were formed, according to research published online Thursday in the journal Science. Lead author Sanchayeeta Borthakur, an assistant research scientist at Johns Hopkins University, and her colleagues reported how they used a method of analyzing star-forming galaxies...

milky way dark matter
2014-10-10 04:30:30

Brett Smith for redOrbit.com - Your Universe Online A team of Australian astrophysicists has determined that the Milky Way has half as much dark matter as previously thought, according to a new study published in the Astrophysical Journal. Dark matter is a mysterious invisible substance that has profound gravitational effect throughout the universe. The researchers found that the amount of dark matter in our galaxy is 800,000,000,000 times the mass of the Sun. To reach their...

deceptive galaxy
2014-09-26 08:31:51

Georgia Bladon, Hubble/ESA Astronomers usually have to peer very far into the distance to see back in time, and view the Universe as it was when it was young. This new NASA/ESA Hubble Space Telescope image of galaxy DDO 68, otherwise known as UGC 5340, was thought to offer an exception. This ragged collection of stars and gas clouds looks at first glance like a recently-formed galaxy in our own cosmic neighborhood. But, is it really as young as it looks? Astronomers have studied...

andromeda galaxy
2014-09-20 05:19:03

Chuck Bednar for redOrbit.com - Your Universe Online When galaxies grow too massive to continue making their own stars, they begin cannibalizing other nearby galaxies, experts from the University of Western Australia and an international team of colleagues reported this week in the journal Monthly Notices of the Royal Astronomical Society. Dr. Aaron Robotham, a postdoctoral researcher at the University of Western Australia node of the International Centre for Radio Astronomy Research...


Latest Galaxy Reference Libraries

Cosmology
2014-01-12 00:00:00

Image Caption: The Hubble Extreme Deep Field (XDF) was completed in September 2012 and shows the farthest galaxies ever photographed by humans. Each speck of light in the photo is an individual galaxy, some of them as old as 13.2 billion years; the observable universe is estimated to contain more than 200 billion galaxies. Credit: NASA/Wikipedia What is Cosmology? I once commented to an acquaintance that I was fascinated by the field of Cosmology, and mused that if I had more time, I...

45_d4a20fda769b165e44826492e9e54549
2010-09-16 15:18:29

The Virgo Cluster consists of galaxies at a distance of around 59 Mly away in the constellation Virgo. Containing between 1300 to 2000 galaxies the Virgo Cluster is the heart of the Local Supercluster. Its mass is estimated at 1.2 × 1015 M☉ out to 8 degrees of the cluster's center or a radius of about 2.2 Mpc. Most of the brighter galaxies in the cluster were discovered by Charles Messier in the late 1770's and early 1780's, including the giant elliptical Messier 87. Messier...

45_9843bacae4e6aaccde9ad6442185fc8e
2010-09-16 15:14:03

The two Magellanic Clouds (or Nubeculae Magellani), composed of the Large Megellanic Cloud and the Small Magellanic Cloud, are irregular dwarf galaxies visible in the southern hemisphere. They are members of our Local Group and orbit the Milky Way galaxy. Persian astronomer Al Sufi, in 964, was the first to have written anything about the Magellanic Clouds proving they have been known since early time amongst the Middle East peoples. Sufi, in his Book of Fixed Stars, calls the clouds...

67_663c28d472128bcb018b26f3ca4cd648
2010-09-13 17:11:43

The M96 Group (also known as the Leo I Group), one of many in the Virgo Supercluster, is located within the Leo constellation and contains between 8 and 24 galaxies, including three Messier objects. The Leo Triplet, which is physically near M96 Group, and M96 may actually be separate parts of a much larger group.

67_8b8b742d654cb21ec4a1143054c4c9da
2010-09-13 17:09:55

The M81 Group, containing the well known galaxies Messier 81 and Messier 82, is a group of galaxies within the constellation Ursa Major. Along with Messier 81 and 82 are several other galaxies with apparent brightness. The center, located at an approximate distance of 3.6 Mpc, is one of the nearest groups to the Local Group. The total estimated mass of the group is (1.03 ± 0.17) × 1012M☉. The Virgo Supercluster contains the M81 Group, the Local Group, and some other nearby...

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