News tagged with gravitational lensing

Two new Saturn-mass exoplanets discovered

(Phys.org)—An international team of astronomers has detected two new giant alien worlds circling distant stars. The newly found planets are estimated to be as massive as Saturn and are orbiting M dwarfs beyond the snow ...

dateMay 08, 2017 in Astronomy report
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Team puts dark matter on the map

A Yale-led team has produced one of the highest-resolution maps of dark matter ever created, offering a detailed case for the existence of cold dark matter—sluggish particles that comprise the bulk of matter in the universe.

dateMar 01, 2017 in Astronomy
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Space telescopes pinpoint elusive brown dwarf

In a first-of-its-kind collaboration, NASA's Spitzer and Swift space telescopes joined forces to observe a microlensing event, when a distant star brightens due to the gravitational field of at least one foreground cosmic ...

dateNov 10, 2016 in Astronomy
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Impostor planet exposed by astronomers

(Phys.org)—Don't be fooled by its light curve exhibiting anomalies like those caused by planets—one microlensing event with a fancy name OGLE-2016-BLG-0733 is doing a really good job of mimicking an extrasolar world. ...

dateNov 09, 2016 in Astronomy report
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