Energy-Space Analysis of Tidal Stripping in Stellar-Dark Matter Systems

[2508.16759] Energy-Space Analysis of Tidal Stripping in Stellar-Dark Matter Systems Skip to main content Search Submit Donate Log in Astrophysics > Astrophysics of Galaxies arXiv:2508.16759 (astro-ph) [Submitted on 22 Aug 2025 ( v1 ), last revised 20 Aug 2026 (this version, v2)] Title: Energy-Space Analysis of Tidal Stripping in Stellar-Dark Matter Systems Authors: Bradley Arias , Nicole E. Drakos , James E. Taylor View PDF HTML (experimental) Abstract: Observations reveal a striking diversity in dwarf galaxy structures, spanning a wide range of masses, inner density slopes, shapes, and sizes. Tidal stripping may play a crucial role in shaping the evolution of these galaxies, yet the underlying physical mechanisms remain poorly understood. Using idealized N-body simulations, we investigate the tidal evolution of two-component systems -- stellar and dark matter -- embedded in a host potential. We find that in terms of energy distributions, both stellar and dark matter particles are stripped identically, regardless of their initial profiles. This surprising result suggests that the energy distribution of stripped stars can provide direct constraints on the underlying dark matter structure. Furthermore, we show that systems with cored dark matter and cuspy stellar profiles naturally evolve into dark matter-deficient (DMD) galaxies, supporting tidal stripping as a viable DMD formation pathway. This energy-space analysis of multi-component systems offers new insights into the dynamical evolution of tidally stripped galaxies. Comments: Published in the Open Journal of Astrophysics, comments welcomed. 11 pages, 12 figures Subjects: Astrophysics of Galaxies (astro-ph.GA) Cite as: arXiv:2508.16759 [astro-ph.GA] (or arXiv:2508.16759v2 [astro-ph.GA] for this version) https://doi.org/10.48550/arXiv.2508.16759 Focus to learn more arXiv-issued DOI via DataCite Related DOI : https://doi.org/10.33232/001c.168199 Focus to learn more DOI(s) linking to related resources Submission history From: Bradley Arias [ view email ] [v1] Fri, 22 Aug 2025 19:36:09 UTC (283 KB) [v2] Thu, 20 Aug 2026 19:13:27 UTC (301 KB) Full-text links: Access Paper: View PDF HTML (experimental) TeX Source view license Current browse context: astro-ph.GA < prev | next > new | recent | 2025-08 Change to browse by: astro-ph References & Citations NASA ADS Google Scholar Semantic Scholar export BibTeX citation Bookmark Bibliographic Tools Bibliographic and Citation Tools Bibliographic Explorer Toggle Bibliographic Explorer ( What is the Explorer? ) Connected Papers Toggle Connected Papers ( What is Connected Papers? ) Litmaps Toggle Litmaps ( What is Litmaps? ) scite.ai Toggle scite Smart Citations ( What are Smart Citations? ) Code, Data, Media Code, Data and Media Associated with this Article alphaXiv Toggle alphaXiv ( What is alphaXiv? ) Links to Code Toggle CatalyzeX Code Finder for Papers ( What is CatalyzeX? ) DagsHub Toggle DagsHub ( What is DagsHub? ) GotitPub Toggle Gotit.pub ( What is GotitPub? ) Huggingface Toggle Hugging Face ( What is Huggingface? ) ScienceCast Toggle ScienceCast ( What is ScienceCast? ) Demos Demos Replicate Toggle Replicate ( What is Replicate? ) Spaces Toggle Hugging Face Spaces ( What is Spaces? ) Spaces Toggle TXYZ.AI ( What is TXYZ.AI? ) Related Papers Recommenders and Search Tools Link to Influence Flower Influence Flower ( What are Influence Flowers? ) Core recommender toggle CORE Recommender ( What is CORE? ) IArxiv recommender toggle IArxiv Recommender ( What is IArxiv? ) Author Venue Institution Topic About arXivLabs arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs . Which authors of this paper are endorsers? | Disable MathJax ( What is MathJax? ) We gratefully acknowledge support from our major funders , member institutions , and all contributors. About · Help · Contact · Subscribe · Copyright · Privacy · Accessibility · Operational Status (opens in new tab) Major funding support from

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