Still Missing Dark Matter: KCWI High-resolution Stellar Kinematics of NGC1052-DF2

The velocity dispersion of the ultra diffuse galaxy NGC1052-DF2 was found to be km s−1, much lower than expected from the stellar mass-halo mass relation and nearly identical to the expected value from the stellar mass alone. This result was based on the radial velocities of 10 luminous globular clu...

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Veröffentlicht in:	Astrophysical journal. Letters 2019-04, Vol.874 (2), p.L12
Hauptverfasser:	Danieli, Shany, van Dokkum, Pieter, Conroy, Charlie, Abraham, Roberto, Romanowsky, Aaron J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Average velocity Dark matter Dispersion Field of view Galactic clusters Galaxies galaxies: individual (NGC1052-DF2) galaxies: kinematics and dynamics Globular clusters High resolution M stars Spectroscopy Stellar kinematics Stellar mass Velocity
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