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Астронет: Астрономическая картинка дня Увлечение системы отсчета черной дырой http://variable-stars.ru/db/msg/1163680/eng |
Credit & Copyright: J. Bergeron, Sky & Telescope Magazine
Explanation:
Gravity can do more than floor you.
According to
recent measurements of a
star system thought to contain a black hole, it can spin you too.
This effect, called frame-dragging, is most prominent near massive, fast spinning objects.
Now, a team led by
W. Cui
(MIT)
has used the orbiting
Rossi X-ray Timing Explorer to search for it near a system
thought to contain a
black hole.
Cui's team claim that matter in this system gets caught up
and spun around the
black hole at just the rate expected from frame-dragging.
Such discoveries help scientists better understand
gravity itself.
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.