News tagged with brown dwarfs
Ultra-cool companion helps reveal giant planets
(Phys.org) -- An international team of astronomers led by David Pinfield of the University of Hertfordshire has found a brown dwarf that is more than 99% hydrogen and helium. Described as ultra-cool, it has ...
May 10, 2012 |
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Astrophysicists uncover secret origin of brown dwarfs
The origin of brown dwarfs is one of the great unsolved mysteries facing astrophysicists today. In a new study published in The Astrophysical Journal, Western’s Shantanu Basu and University of Vienna’s Eduard ...
Apr 26, 2012 |
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The earliest stages of planet formation
(PhysOrg.com) -- Small dust particles in a disk of gas around a young star, according to current models, gradually coagulate during the first million years until kilometer-sized objects are formed. These in ...
Mar 26, 2012 |
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Record-breaking photo reveals a planet-sized object as cool as the Earth
(PhysOrg.com) -- The photo of a nearby star and its orbiting companion -- whose temperature is like a hot summer day in Arizona -- will be presented by Penn State Associate Professor of Astronomy and Astrophysics ...
Oct 19, 2011 |
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Astronomers find bounty of failed stars
A University of Toronto-led team of astronomers has discovered over two dozen new free-floating brown dwarfs, including a lightweight youngster only about six times heftier than Jupiter, that reside in two ...
Oct 11, 2011 |
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Astronomers find extreme weather on an alien world
(PhysOrg.com) -- A University of Toronto-led team of astronomers has observed extreme brightness changes on a nearby brown dwarf that may indicate a storm grander than any seen yet on a planet. Because old ...
Sep 12, 2011 |
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As cool as the human body: Wise mission discovers coolest class of stars
(PhysOrg.com) -- Scientists using data from NASA's Wide-field Infrared Survey Explorer (WISE) have discovered the coldest class of star-like bodies, with temperatures as cool as the human body.
Aug 24, 2011 |
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Comet Elenin poses no threat to Earth
(PhysOrg.com) -- Often, comets are portrayed as harbingers of gloom and doom in movies and on television, but most pose no threat to Earth. Comet Elenin, the latest comet to visit our inner solar system, is ...
Space & Earth / Space Exploration
Aug 17, 2011 |
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Two new brown dwarf Solar neighbors discovered
Scientists from the Leibniz Institute for Astrophysics Potsdam (AIP) have discovered two new brown dwarfs at estimated distances of only 15 and 18 light years from the Sun. For comparison: The next star to ...
Jul 15, 2011 |
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A night with the stars…in a conference room
(PhysOrg.com) -- Ancient astronomers looked up at the dark skies in wonder, as the stars marched by overhead like precision dancers. In the early 17th century, Galileo Galilei brought the world one step closer ...
Jun 01, 2011 |
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Super cold brown dwarf or is it a planet?
(PhysOrg.com) -- In a month that has already announced the discovery of a brown dwarf 75 light-years from Earth, NASA’s infrared Spitzer Space Telescope has found what could prove to be an even cooler, ...
Mar 23, 2011 |
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A very cool pair of brown dwarfs (w/ video)
(PhysOrg.com) -- Observations with the European Southern Observatory’s Very Large Telescope, along with two other telescopes, have shown that there is a new candidate for the coldest known star: a brown ...
Mar 23, 2011 |
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Baby stars born to 'napping' parents
(PhysOrg.com) -- Cardiff University astronomers believe that a young star's long "napping" could trigger the formation of a second generation of smaller stars and planets orbiting around it.
Mar 09, 2011 |
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Birth of a baby planet
(PhysOrg.com) -- University of Sydney astronomer, Professor Peter Tuthill, is one of an international team of astronomers who have announced a major step forward in the quest to find planets in orbit around ...
Mar 02, 2011 |
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Can WISE find the hypothetical 'Tyche'?
(PhysOrg.com) -- In November 2010, the scientific journal Icarus published a paper by astrophysicists John Matese and Daniel Whitmire, who proposed the existence of a binary companion to our sun, larger than ...
Feb 22, 2011 |
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