The Role of Images in Astronomical Discovery Read online

  X-ray emission, 171

  Tinsley, Beatrice, 141

  from clusters of galaxies, 179

  Toomre, Alar, 214, 238, 245

  commenting on Arp’s peculiar galaxies, 215

  Yerkes Observatory, 72, 76, 120, 133

  commenting on The Hubble Atlas of Galaxies, 211

  Toomre, Jüri, 214, 238, 245

  zone of avoidance, 95, 113, 137

  Trouvelot, Étienne Léopold, 50

  Zwicky, Fritz, 10, 86–89, 115, 134, 180, 182, 211,

  Trumpler, Robert Julius, 136, 141

  218, 254, 255

  Tufte, Edward, 93

  identifying dark matter, 176–178

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