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Science Topics

Alex Drlica-Wagner edited this page Apr 4, 2017 · 2 revisions

Science Topics

Below are a set of initial topics that could make their way into a dark matter white paper. This table is very rough, and a more fleshed out version would be a great deliverable for this hack session.

Topic Description References
Dwarf Galaxies (and Low Surface Brightness Galaxies) Luminosity function (missing satellites), kinematics and density (too big to fail), wide binary fraction, constraining anisotropy parameter with proper motions Williams, et al. 2016
Stellar Streams Gaps in streams (dark subhalos), stream kinematics (Milky Way halo) Bovy et al. 2016
Colliding Clusters Mass-light offset (dark matter self-interaction) Wittman, Golovich, & Dawson 2017
Galaxy Strong Lenses Flux ratio, astrometric, and timing anomalies, dynamical relaxation Nierenberg et al. 2017
MACHOs Microlensing searches

Low Mass End:

Niikura et al. 2017

High Mass End:

dawson_CosmicVision_MACHO_whitepaper.pdf

dawson_CosmicVisions2017_Microlensing.pptx

Milky Way Halo Local dark matter density, dynamics from proper motions, halo triaxiality, RR Lyrae

Bozorgnia et al. 2016

Kelso et al. 2016

Sloane et al. 2016

Multi-Wavelength

What can we learn by combining with x-rays, gamma-rays, radio, etc.?

annihilation/decay from dSphs, clusters, cross-correlation, etc.

Cuoco et al. 2015

Camera et al. 2015

Regis et al. 2014

Charles et al. 2016

Multi-Messenger What can we learn by combining with neutrinos & gravitational waves?  
Lyman-alpha Forest Lyman alpha forest with high-redshift QSOs

Viel et al. 2013

Wang et al. 2013

Baur et al. 2016

Cluster Density Profile

Cluster density profile constraints on self-interacting dark matter

(LSST provides weak and strong lensing constraints on the profile and you can go to even smaller radii by coupling LSST’s measurements with spectroscopic velocity dispersion measurements of the BCG)

Newman et al. 2012

Kim, Peter, & Wittman 2016

Theory Theoretical work needed to support LSST observations     Sawala et al. 2017

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