News tagged with intensity

Hubble catches the moment the lights went out

(Phys.org)—The further away you look, the further back in time you see. Astronomers use this fact to study the evolution of the Universe by looking at nearby and more distant galaxies and comparing their features. Hubble ...

dateFeb 06, 2013 in Astronomy
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The wings of the Seagull Nebula

(Phys.org)—This new image from ESO shows a section of a cloud of dust and glowing gas called the Seagull Nebula. These wispy red clouds form part of the "wings" of the celestial bird and this picture reveals an intriguing ...

dateFeb 06, 2013 in Astronomy
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Massive stellar winds are made of tiny pieces

(Phys.org)—ESA's XMM-Newton space observatory has completed the most detailed study ever of the fierce wind from a giant star, showing for the first time that it is not a uniform breeze but is fragmented into hundreds of ...

dateFeb 05, 2013 in Astronomy
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DEM L50: Stellar effervescence on display

(Phys.org)—This composite image shows the superbubble DEM L50 (a.k.a. N186) located in the Large Magellanic Cloud about 160,000 light years from Earth. Superbubbles are found in regions where massive stars have formed in ...

dateJan 28, 2013 in Astronomy
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Accelerating neutral atoms on a table top

Conventional, as well as compact, laser-based particle acceleration schemes hinge on accelerating electric fields and are therefore ineffective for neutral atoms, which do not respond to these fields. Researchers at UPHILL ...

dateJan 27, 2013 in General Physics
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