Імітатори чорної діри в астрофізичних конфігураціях зі скалярними полями
We study static spherically symmetric configurations of General Relativity in the presence of one scalar field (SF). For a monomial SF potential, the solutions of the Einstein SF equations are obtained numerically; then we get distributions of stable circular orbits around the configuration and buil...
Збережено в:
| Дата: | 2019 |
|---|---|
| Автори: | , |
| Формат: | Стаття |
| Мова: | English Ukrainian |
| Опубліковано: |
Publishing house "Academperiodika"
2019
|
| Теми: | |
| Онлайн доступ: | https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019516 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Ukrainian Journal of Physics |
Репозитарії
Ukrainian Journal of Physics| Резюме: | We study static spherically symmetric configurations of General Relativity in the presence of one scalar field (SF). For a monomial SF potential, the solutions of the Einstein SF equations are obtained numerically; then we get distributions of stable circular orbits around the configuration and build images of the corresponding “accretion disks” from the perspective of a distant observer. We discuss also a similar problem in the case of analytic solution with a specially selected SF potential that allows the existence of a black hole. We show that the images are similar in many cases to the case of ordinary Schwarzschild black hole with a luminous ring and a dark spot at the center. On the other hand, a certain selection of model parameters leads to specific features in these images that may help to exclude some exotic models. |
|---|