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Hunting for the Milky Way’s heaviest stars

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Like looking for Easter eggs in a lawn of long grass, the hunt for the Milky Way’s most massive stars takes persistence and sharp eyes. In their stellar search through our Galactic backyard, astronomers have used powerful telescopes sensitive to X-ray and infrared radiation to find evidence for a substantial population of X-ray emitting massive stars. This image shows infrared data from NASA’s Spitzer Space Telescope near the plane of the Milky Way galaxy. Both outlined boxes contain an artificially darkened view of the Spitzer data, to highlight a bright X-ray source (blue) detected at the center of each square with NASA’s Chandra X-ray Observatory. Each X-ray source coincides with a strong infrared signal. Click here to read more…

 

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