                         Astronomy Picture of the Day

                         Astronomy Picture of the Day

    Discover the cosmos! [1] Each day a different image or photograph of our
 fascinating universe is featured, along with a brief explanation written by a
                           professional astronomer.

                                2018 August 25
                                      [2]
                            Stripping ESO 137-001
                  Image Credit: NASA [3] , ESA [4] , CXC [5]

Explanation: Spiral galaxy ESO 137-001 [6]  hurtles through massive galaxy
cluster [7]  Abell 3627 some 220 million light years away. The distant galaxy
is seen in this colorful Hubble/Chandra composite [8]  image through a
foreground of the Milky Way's stars toward the southern constellation
Triangulum Australe. As the spiral speeds along [9] at nearly 7 million
kilometers per hour, its gas and dust are stripped away when ram pressure [10]
 with the cluster's own hot, tenuous intracluster medium overcomes the
galaxy's gravity. Evident in Hubble's near visible light data, bright star
clusters have formed in the stripped material along the short, trailing blue
streaks. Chandra's X-ray data shows off the enormous extent of the heated,
stripped gas [11] as diffuse, darker blue trails stretching over 400,000
light-years toward the bottom right. The significant loss of dust and gas will
make new star formation [12] difficult for this galaxy. A yellowish elliptical
galaxy [13] , lacking in star forming dust and gas, is just to the right of
ESO 137-001 in the frame.

                           Tomorrow's picture: fire

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    Authors & editors: Robert Nemiroff [25] (MTU [26] ) & Jerry Bonnell [27]
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Site notes:
  [1] archivepix.html
  [2] image/1808/heic1404b1920.jpg
  [3] http://www.nasa.gov/
  [4] http://www.spacetelescope.org
  [5] http://chandra.harvard.edu/
  [6] http://heritage.stsci.edu/2014/14/index.html
  [7] http://chandra.harvard.edu/xray_sources/ galaxy_clusters.html
  [8] http://www.spacetelescope.org/news/heic1404/
  [9] ap040906.html
  [10] http://arxiv.org/abs/1103.3273
  [11] http://arxiv.org/abs/1403.2328
  [12] ap130707.html
  [13] ap060520.html
  [14] ap180824.html
  [15] archivepix.html
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