A High Energy Revelation
Δημοσιεύτηκε στις 13 Σεπ 2016
Measurements
of unprecedented detail returned by Japan's Hitomi satellite have
allowed scientists to track the motion of X-ray-emitting gas at the
heart of the Perseus cluster of galaxies for the first time. Located
about 240 million light-years away and named for its host constellation,
the Perseus galaxy cluster contains a vast amount of extremely hot gas.
At temperatures averaging 90 million degrees Fahrenheit (50
million degrees Celsius), the gas glows brightly in X-rays. Prior to
Hitomi's launch, astronomers lacked the capability to measure the
detailed dynamics of this gas, particularly its relationship to bubbles
of gas expelled by an active supermassive black hole in the cluster's
core galaxy, NGC 1275.
of unprecedented detail returned by Japan's Hitomi satellite have
allowed scientists to track the motion of X-ray-emitting gas at the
heart of the Perseus cluster of galaxies for the first time. Located
about 240 million light-years away and named for its host constellation,
the Perseus galaxy cluster contains a vast amount of extremely hot gas.
At temperatures averaging 90 million degrees Fahrenheit (50
million degrees Celsius), the gas glows brightly in X-rays. Prior to
Hitomi's launch, astronomers lacked the capability to measure the
detailed dynamics of this gas, particularly its relationship to bubbles
of gas expelled by an active supermassive black hole in the cluster's
core galaxy, NGC 1275.
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