User:Mac Davis/gallery

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Wed Mar 28 2007

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  • Animated gif [2]multimedia/pia09187.html
    Animated gif [2]multimedia/pia09187.html

Wed Dec 27 17:56:48 EST 2006

Thu Sep 28 2006

Wed Aug 23 14:56:35 EDT 2006

Tue Aug 22 15:31:26 EDT 2006

  • X-ray photo by Chandra of the Bullet Cluster (1E0657-56). Exposure time was 0.5 million seconds (~140 hours) and the scale is shown in w:megaparsecs. Redshift (z) = 0.3, meaning its light has wavelengths stretched by a factor of 1.3. Based on today's theories this shows the cluster to be about 4 billion light years away. In this photograph, a rapidly moving galaxy cluster with a shock wave trailing behind it seems to have hit another cluster at high speed. The gases collide, and gravitational fields of the stars and galalxies interact. When the galaxies collided, based on black-body temperture readings, the temperature reached 160 million degrees and X-rays were emitted in great intensity, claiming title of the hottest known galactic cluster. Sister picture: Image:bullet_cluster_lensing.jpg
    X-ray photo by Chandra of the Bullet Cluster (1E0657-56). Exposure time was 0.5 million seconds (~140 hours) and the scale is shown in w:megaparsecs. Redshift (z) = 0.3, meaning its light has wavelengths stretched by a factor of 1.3. Based on today's theories this shows the cluster to be about 4 billion light years away. In this photograph, a rapidly moving galaxy cluster with a shock wave trailing behind it seems to have hit another cluster at high speed. The gases collide, and gravitational fields of the stars and galalxies interact. When the galaxies collided, based on black-body temperture readings, the temperature reached 160 million degrees and X-rays were emitted in great intensity, claiming title of the hottest known galactic cluster. Sister picture: Image:bullet_cluster_lensing.jpg
  • Superimposed mass density contours, caused by gravitational lensing of dark matter. Photograph taken with Hubble Space Telescope. Sister picture: Image:bullet_cluster.jpg
    Superimposed mass density contours, caused by gravitational lensing of dark matter. Photograph taken with Hubble Space Telescope. Sister picture: Image:bullet_cluster.jpg

Sun Aug 20 14:26 EDT 2006

Tue Aug 15 19:15:57 EDT 2006

Fri Jun 09 15:12:40 ChST 2006

Fri May 26 19:58:47 ChST 2006

Thu May 18 21:29:50 ChST 2006

Sun May 14 20:43:22 ChST 2006

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