Japanese Black Hole

[alokmohan]

<br />Japanese Researcher Finds Massive Black Hole 12.7 Billion Light-years Away <br /><br />PRESS RELEASE<br />Date Released: Wednesday, August 30, 2006<br />Source: Subaru Telescope National Astronomical Observatory of Japan<br /><br /><br /> <br /><br /> <br /><br />Astronomer Tomotsugu Goto of the Japan Aerospace Exploration Agency (JAXA) has used the Subaru telescope to identify a distant quasar powered by a massive black hole. The quasar is almost 12.7 billion light-years away from Earth in the direction of the constellation Cancer the Crab. It is the most distant one ever found by a Japanese researcher and the eleventh most distant quasar currently known. <br /><br />The discovery of the object, called SDSSJ084119.52+290504.4, demonstrates a successful strategy for finding distant black holes and puts strong constraints on the early history of the universe. <br /><br />Quasars are black holes in the act of swallowing material from surrounding space and emitting huge outbursts of energy. They are rare, and astronomers must search over a wide area of sky to find them. To locate candidate quasars, Goto searched the database of the Sloan Digital Sky Survey (SDSS) to find objects that have the same color in visible light as quasars at a distance of 12.7 billion light years. He found 300 candidates among the 180 million objects scattered in the sky in the 6,670-square-degree area of the SDSS (this covers roughly one-sixth of the sky). By observing these candidates in infrared light using the Apache Point 3.5-meter telescope and the United Kingdom Infrared Telescope on Mauna Kea, Goto was able to eliminate stars in our own galaxy that have similar visible colors to quasars. <br /><br />Goto then observed the remaining 26 candidates with the Faint Object Camera and Spectrograph (FOCAS) on the Subaru telescope to find what he was looking for - a quasar 12.7 billion light years away. Xiaohui Fan from the University of Arizona and his collaborators who discovered the ten most distant qua

 

[pyoko]

Interesting. But... 'Cancer the Crab' lol. It's like 'Pluto the dog'. Disambiguation? <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <p> </p><p> </p><p><span style="color:#ff9900" class="Apple-style-span">-pyoko</span> <span style="color:#333333" class="Apple-style-span">the</span> <span style="color:#339966" class="Apple-style-span">duck </span></p><p><span style="color:#339966" class="Apple-style-span"><span style="color:#808080;font-style:italic" class="Apple-style-span">It is by will alone I set my mind in motion.</span></span></p> </div>

 

[alokmohan]

You dont believe it?