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Black hole survey

Scanning the sky for high-energy X rays, a NASA satellite found more than 200 supermassive black holes within 400 million light-years of Earth.

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1. Galaxy survey focuses on 'pre-teen' years
   03-05-2007 · EurekAlert!
   A massive project to generate an all-color map of the galaxies in a small area of sky is yielding new information about the universe's "pre-teen" years and the early evolution of galaxies and galaxy clusters. The UC Berkeley-led AEGIS survey has already generated 19 papers set for publication this spring, reporting a binary black hole at the core of one galaxy, new lensing galaxies, and information about our universe as it matured through early adolescence.
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2. Attitudes toward mammography differ across ethnicities, cultures, backgrounds
   11-26-2007 · EurekAlert!
   Black and Hispanic women have a different understanding of screening mammography compared with that of Caucasian women, according to the findings of a Boston University Medical Center survey.
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3. 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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4. Study Finds Plenty Of Carbon Dioxide Storage Capacity Underground In Kentucky
   10-06-2006 · ScienceDaily
   A Kentucky Geological Survey geologist finds Devonian black shale in Kentucky could provide a potentially large geologic storage reservoir for captured carbon dioxide.
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5. Chandra discovers light echo from the Milky Way's Black Hole
   01-10-2007 · EurekAlert!
   Like cold case investigators, astronomers have used NASA's Chandra X-ray Observatory to uncover evidence of a powerful outburst from the giant black hole at the Milky Way's center.
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6. 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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7. 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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8. 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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9. A brother for the Milky Way's black hole
   07-25-2007 · EurekAlert!
   Is a second black hole lurking at the heart of the Milky Way? We know there is one colossal black hole at the centre of the galaxy, but so far no one has managed to verify the existence of a second. Now, an astrophysicist at the University if California says a simple test could answer the question. Look for a pair of hypervelocity stars hurtling out from the centre of the galaxy at breakneck speed.
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10. 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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