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TAU scientists help discover massive stellar black hole
11-08-2007 · EurekAlert!Sixteen times the mass of our sun, the discovery is expected to serveas a test-bed for studying astrophysics
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Keywords: tau, scientists, discover, massive, stellar, black, hole, scientist
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- Unusual supernovae may reveal intermediate-mass black holes in globular clusters
01-29-2008 · EurekAlert!
A strange and violent fate awaits a white dwarf star that wanders too close to a moderately massive black hole. According to a new study, the black hole's gravitational pull on the white dwarf would cause tidal forces sufficient to disrupt the stellar remnant and reignite nuclear burning in it, giving rise to a supernova explosion with an unusual appearance.
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- Largest, brightest supernova ever seen may be long-sought pair-instability supernova
05-07-2007 · EurekAlert!
UC Berkeley astronomers Nathan Smith and David Pooley report the most luminous supernova ever detected, the explosion of a super-massive star in a galaxy 250 million light years away. The scientists estimate the star was 150 times larger than our sun, and that it exploded via an entirely new mechanism never before observed. Unlike other massive supernovas, this so-called pair instability supernova left behind no black hole.
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- Astronomers discover new kind of black-hole explosion
12-20-2006 · EurekAlert!
Scientists have discovered what appears to be a new kind of cosmic explosion -- a "hybrid gamma-ray burst" -- which will be the subject of four articles to be published in the journal Nature on 21 December 2006. The scientists include four astrophysicists at Penn State University as well as others around the globe. The nature of the explosion is a puzzle in "virtually uncharted territory" for space scientists.
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- New type of massive stellar death
12-20-2006 · EurekAlert!
So far we have thought that the signature of the death of a massive star was an energetic explosion called a "supernova." New observations show that this is not always the case. On the contrary, a team led by Danish researchers has now discovered that some massive stars die by collapsing into a black hole returning very little material into the interstellar medium. The new discovery is published in Nature.
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- Heaviest stellar black hole discovered in nearby galaxy
10-17-2007 · EurekAlert!
Astronomers have located an exceptionally massive black hole in orbit around a huge companion star. By combining data from NASA's Chandra X-ray Observatory and the Gemini telescope on Mauna Kea, Hawaii, M33 X-7 was determined to be the most massive stellar black hole known. This result has intriguing implications for the evolution and ultimate fate of massive stars.
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- Biggest 'small' black hole discovered
10-19-2007 · EurekAlert!
Discovery of the largest example of a 'small' black hole -- one formed from the collapse of a single massive star at the end of its lifetime -- has led scientists to reevaluate of how black holes come into being, according to a report in Nature.
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- Massive black hole smashes record
10-30-2007 · EurekAlert!
Using two NASA satellites, astronomers have discovered the heftiest known black hole to orbit a star. The new black hole, with a mass 24 to 33 times that of our Sun, is more massive than scientists expected for a black hole that formed from a dying star.
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- Astronomers See Inside A Quasar For The First Time
10-06-2006 · ScienceDaily
For the first time, astronomers have looked inside quasars -- the brightest objects in the universe -- and have seen evidence of black holes. The study lends further confirmation to what scientists have long suspected -- that quasars are made up of super-massive black holes and the super-heated disks of material that are spiraling into them.
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- Scientists reveal how supermassive black holes bind into pairs during galaxy mergers
06-07-2007 · EurekAlert!
Now, using supercomputers to simulate galaxy mergers, scientists at Stanford and elsewhere have seen the formation of a new type of structure-a central disk of gas that can be from a hundred to a few thousand light years wide and from a few hundred million to a billion solar masses. They report the first simulated formation of a supermassive black hole (SMBH) pair in the June 7 edition of Science Express, an online version of Science magazine.
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- Diamonds from Outer Space: Geologists Discover Origin of Earth's Mysterious Black Diamonds
01-10-2007 · Brookhaven National Laboratory
The National Science Foundation has issued this news release about the discovery of the origin of Earth's so-called black diamonds. This research was performed at beamline U2B at Brookhaven's National Synchrotron Light Source (NSLS), where scientists used infrared light to analyze the diamonds' elemental makeup.
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