News tagged with astrophysical journal

Quasar observed in six separate light reflections

(Phys.org) —Quasars are active black holes—primarily from the early universe. Using a special method where you observe light that has been bent by gravity on its way through the universe, a group of physics ...

dateAug 07, 2013 in Astronomy
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Revealing a mini-supermassive black hole

One of the lowest mass supermassive black holes ever observed in the middle of a galaxy has been identified, thanks to NASA's Chandra X-ray Observatory and several other observatories. The host galaxy is ...

dateOct 24, 2012 in Astronomy
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Sifting through the atmospheres of far-off worlds

(Phys.org) —Gone are the days of being able to count the number of known planets on your fingers. Today, there are more than 800 confirmed exoplanets—planets that orbit stars beyond our sun—and more ...

dateMay 09, 2013 in Astronomy
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Explosive growth of young star

A star is formed when a large cloud of gas and dust condenses and eventually becomes so dense that it collapses into a ball of gas, where the pressure heats the matter, creating a glowing gas ball – a star ...

dateDec 04, 2013 in Astronomy
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Modeling Jupiter and Saturn's possible origins

New theoretical modeling by Carnegie's Alan Boss provides clues to how the gas giant planets in our solar system—Jupiter and Saturn—might have formed and evolved. His work was published recently by the ...

dateMar 05, 2013 in Astronomy
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Old star, new trick

The Big Bang produced lots of hydrogen and helium and a smidgen of lithium. All heavier elements found on the periodic table have been produced by stars over the last 13.7 billion years. Astronomers analyze starlight to determine ...

dateApr 30, 2012 in Astronomy
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