Testing the Nature of Dark Matter with Extremely Large Telescopes
by Joshua Simon, Simon Birrer, Keith Bechtol, Sukanya Chakrabarti, Francis-Yan Cyr-Racine, Ian Dell'Antonio, Alex Drlica-Wagner, Chris Fassnacht, Marla Geha, Daniel Gilman, Yashar D. Hezaveh, Dongwon Kim, Ting S. Li, Louis Strigari, and Tommaso Treu
Published onMay 31, 2019
Testing the Nature of Dark Matter with Extremely Large Telescopes
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Abstract
Extremely large telescopes can critically test the predictions of the LambdaCDM model on small scales via the three-dimensional motions of stars in dwarf galaxies and integral field spectroscopy of gravitationally lensed galaxies and quasars. Such observations will conclusively determine whether dark matter is cold and collisionless.
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