News tagged with luminosity
White LEDs with super-high luminous efficacy could satisfy all general lighting needs
(PhysOrg.com) -- Researchers from the Nichia Corporation in Tokushima, Japan, have set an ambitious goal: to develop a white LED that can replace every interior and exterior light bulb currently used in homes ...
Aug 31, 2010 |
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Large Hadron Collider gains pace: CERN
The world's biggest atom smasher is swiftly gaining pace as scientists seek to unravel the secrets of the universe, the European Organisation for Nuclear Research (CERN) said on Monday.
Jun 28, 2010 |
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Astronomers Find Super-Earth Using Amateur, Off-the-Shelf Technology (w/ Video)
(PhysOrg.com) -- Astronomers announced today that they have discovered a "super-Earth" orbiting a red dwarf star 40 light-years from Earth. They found the distant planet with a small fleet of ground-based ...
Dec 16, 2009 |
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Dark Matter May be Easier to Detect than Previously Thought
(PhysOrg.com) -- The Milky Way, like many other galaxies, is thought to be embedded in massive, lumpy amounts of dark matter that release gamma rays and other emissions. Although at first these emissions seem ...
Aug 10, 2009 |
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Galactic nuclei offer some indication of axionlike particles
(PhysOrg.com) -- “Axionlike particles are interesting because they come up regularly when scientists study string theory. By looking at their properties, you hope to learn about string theory, or some other unified theory ...
May 28, 2009 |
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Large Hadron Collider pauses protons; enters new phase
(PhysOrg.com) -- Proton running for 2010 in the Large Hadron Collider at CERN came to a successful conclusion today. Since the end of March, when the first collisions occurred at a total energy of 7 TeV, the ...
Nov 04, 2010 |
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The Cosmic Distance Scale
(PhysOrg.com) -- In 1908, Harvard astronomer Henrietta Swan Leavitt discovered that a class of stars called Cepheids have brightnesses that vary regularly with periods that are directly related to their intrinsic ...
Jan 29, 2010 |
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Conference highlights first results from the Large Hadron Collider
First results from the LHC at CERN are being revealed at ICHEP, the world's largest international conference on particle physics, which has attracted more than 1000 participants to its venue in Paris. The ...
Jul 26, 2010 |
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Zoom-up star photos poke holes in century-old astronomical theory
(PhysOrg.com) -- The hottest stars in the universe spin so fast that they get a bit squished at their poles and dimmer around their middle. The 90-year-old theory that predicts the extent of this "gravity ...
Apr 18, 2011 |
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Large Hadron Collider achieves 2011 data milestone
Today at around 10:50 CEST, the amount of data accumulated by Large Hadron Collider experiments ATLAS and CMS clicked over from 0.999 to 1 inverse femtobarn, signalling an important milestone in the experiments' ...
Jun 19, 2011 |
4.6 / 5 (14) |
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Massive black holes 'switched on' by galaxy collision
(PhysOrg.com) -- The centre of most galaxies harbours a massive black hole. Our Milky Way galaxy is one of these - the exotic object there however is reasonably calm, unlike some super-massive gravity monsters ...
Jun 15, 2010 |
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Supernovae mystery solved
(PhysOrg.com) -- Supernovae are gigantic stellar explosions that can be seen across the entire universe. Type Ia supernovae are a relatively homogeneous class of stellar explosions, which researchers use as ...
Jun 30, 2010 |
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Brightness variations of sun-like stars: The mystery deepens
(PhysOrg.com) -- An extensive study made with ESO's Very Large Telescope deepens a long-standing mystery in the study of stars similar to the Sun. Unusual year-long variations in the brightness of about one ...
Dec 07, 2009 |
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A wealth of molecules in an extreme galaxy
(PhysOrg.com) -- Arp 220 is the closest galaxy to the Milly Way with an extreme luminosity, defined as being more than about 300 times that of our own galaxy. Some dramatic galaxies have values of luminosity ...
Feb 21, 2011 |
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Giant space blob glows from within: Primordial cloud of hydrogen found to be centrally powered
(PhysOrg.com) -- Observations from ESO's Very Large Telescope have shed light on the power source of a rare vast cloud of glowing gas in the early Universe. The observations show for the first time that this ...
Aug 17, 2011 |
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Luminosity
Luminosity is a measurement of brightness.
For more information about Luminosity, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
