Galactic Halo Wormhole Solutions in f(T) Gravity by M. Sharif, Shamaila Rani

“…The proposal of galactic halo region is based on the idea that dark halos contain some characteristics needed to support traversable wormhole solutions. …”
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Unified Dark Matter Scalar Field Models by Daniele Bertacca, Nicola Bartolo, Sabino Matarrese

“…We also discuss static and spherically symmetric solutions of Einstein's equations for a scalar field with noncanonical kinetic term, in connection with galactic halo rotation curves.…”
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The Multiple Extended Tidal Tails of NGC 288 by Carl J. Grillmair

“…On the other hand, NGC 288 is believed to have been brought into the Galactic halo during the Gaia–Enceladus–Sausage accretion event, and the tangential velocity dispersions of our stream candidates are indeed mostly consistent with having been stripped in a parent galaxy that had a large, cored dark matter halo. …”
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Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing by James B. Dent, Bhaskar Dutta, Tao Xu

“…Using axion-like particles as an example, we show that line signals emerging from a superradiated axion cloud combined with black hole Hawking radiation in extragalactic and galactic halos, along with microlensing observations lead to complementary constraints on parameter space combinations including the axion-photon coupling, axion mass, black hole mass, and its dark matter fraction, fPBH. …”
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