Inside MOND: Testing Gravity with Stellar Accelerations

التفاصيل البيبلوغرافية
العنوان: Inside MOND: Testing Gravity with Stellar Accelerations
المؤلفون: Finan-Jenkin, Maxwell, Easther, Richard
سنة النشر: 2023
المجموعة: Astrophysics
General Relativity and Quantum Cosmology
مصطلحات موضوعية: Astrophysics - Astrophysics of Galaxies, Astrophysics - Solar and Stellar Astrophysics, General Relativity and Quantum Cosmology
الوصف: We quantify the differences between stellar accelerations in disk galaxies formed in a MONDian universe relative to galaxies with the identical baryonic matter distributions and a fitted cold dark matter halo. In a Milky Way-like galaxy the maximal transverse acceleration is ${\cal {O}}(10^{-9})$ arcseconds per year per decade, well beyond even the most optimistic extrapolations of current capabilities. Conversely, the maximum difference in the line-of-sight acceleration is ${\cal {O}}(1)$ centimetre per second per decade at solar distances from the galactic centre. This level of precision is within reach of plausible future instruments.
Comment: 13 pages v2 typos fixed, ref added
نوع الوثيقة: Working Paper
URL الوصول: http://arxiv.org/abs/2306.15939
رقم الأكسشن: edsarx.2306.15939
قاعدة البيانات: arXiv