تقرير
Redshift dependence of FRB host dispersion measures across cosmic epochs
| العنوان: | Redshift dependence of FRB host dispersion measures across cosmic epochs |
|---|---|
| المؤلفون: | Acharya, Sandeep Kumar, Beniamini, Paz |
| سنة النشر: | 2024 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - Cosmology and Nongalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics - High Energy Astrophysical Phenomena |
| الوصف: | We constrain the redshift dependence of (rest frame) host galaxy dispersion measures of localized FRBs by assuming it to vary as a simple power law ($\propto (1+z)^{\alpha}$). We simultaneously fit $\alpha$ as well as the host dispersion measure to the data of FRBs with known redshifts. We find that $\alpha\approx 0$ is preferred over higher values of $\alpha$ with either a positive or negative sign. Such constraints have implications for our understanding of galaxy formation and can be used to inform galaxy and large scale simulations. Comment: Comments welcome |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2408.03163 |
| رقم الأكسشن: | edsarx.2408.03163 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |