Dark Solar Wind
Jae Hyeok Chang, David E. Kaplan, Surjeet Rajendran, Harikrishnan, Ramani, and Erwin H. Tanin

TL;DR
This paper explores how strongly self-interacting dark sector particles emitted by the Sun can form a relativistic fluid wind with significantly higher density and lower energy per particle, leading to new experimental signatures.
Contribution
It introduces a model where dark sector particles self-thermalize and form a relativistic outflow, revealing novel signatures and motivating broader experimental searches.
Findings
Dark sector particles can self-thermalize and accelerate to relativistic speeds.
The resulting dark wind has at least 1000 times higher density than non-interacting models.
The model predicts distinctive experimental signatures for dark sector detection.
Abstract
We study the solar emission of light dark sector particles that self-interact strongly enough to self-thermalize. The resulting outflow behaves like a fluid which accelerates under its own thermal pressure to highly relativistic bulk velocities in the solar system. Compared to the ordinary non-interacting scenario, the local outflow has at least higher number density and correspondingly at least lower average energy per particle. We show how this generic phenomenon arises in a dark sector comprised of millicharged particles strongly self-interacting via a dark photon. The millicharged plasma wind emerging in this model has novel yet predictive signatures that encourages new experimental directions. This phenomenon demonstrates how a small step away from the simplest models can lead to radically different outcomes and thus motivates a broader search for dark…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsSolar and Space Plasma Dynamics · Cosmology and Gravitation Theories · Galaxies: Formation, Evolution, Phenomena
