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Astronomy Picture of Day: X-ray from whirlpool
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Astronomy Picture of Day: X-ray from whirlpool# Astronomy - 天文
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M51: X-Rays from the Whirlpool
Explanation: Fresh from yesterday's episode, a popular pair of interacting galaxies known
as the Whirlpool debut here beyond the realm of visible light -- imaged at high energies by
the orbiting Chandra X-ray Observatory. Still turning in a remarkable performance, over 80
glitering x-ray stars are present in the Chandra image data from the region. The number of
luminous x-ray sources, likely neutron star and black hole binary systems within the
confines of M51, is
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