|
ИСТИНА |
Войти в систему Регистрация |
ИСТИНА ЦЭМИ РАН |
||
Relativistic astrometryстатья
- Автор: Kopeikin Sergei
- Журнал: Scholarpedia journal
- Том: 6
- Номер: 8
- Издательство: Scholarpedia.org
- Местоположение издательства: San Diego, CA, United States
- Первая страница: 11382
- DOI: 10.4249/scholarpedia.11382
- Аннотация: Relativistic astrometry studies the geometric relationships between astronomical objects in warped spacetime of the Universe by making use of high-precision astrometric techniques: optical space interferometry, very-long baseline interferometry (VLBI), pulsar timing, atomic clocks. It is based on the physical principles of Einstein's general theory of relativity and utilizes a powerful mathematical apparatus of differential geometry. Applied relativistic astrometry uses general-relativistic algorithms for processing high-precision astrometric data for building the fundamental catalog of stars and extra-galactic sources - quasars which establishes the inertial reference frame in the sky. Experimental relativistic astrometry explores the existence of presumable deviations from the general theory of relativity predicted by valid alternative theories of gravity.
- Добавил в систему: Копейкин Сергей Михайлович