Thursday, March 21, 2013

Star and a black hole revolving in rapid waltz

Space Telescope European Space Agency's XMM-Newton helped discover a star and a black hole that address near each other at high speed, making one revolution in just 2.4 hours - which is an hour shorter than the orbital period of the previous record holder.

A black hole in the close pair, known as the MAXI J1659-152, at least three times as massive as the Sun, while the mass of its companion star - a red dwarf star - only 20% of the solar mass. 

Pair separated by a distance of about one million kilometers.

This pair was opened September 25, 2010 Space Telescope, NASA Swift, and at first the scientists took this event for the gamma-ray burst. Later in the day, Japanese telescope MAXI, located on the ISS, discovered a bright X-ray source at the same location. Further observations, made ​​using space telescope XMM-Newton, allowed astronomers to associate the event with a black hole, absorbing its tiny companion.

A new study on black hole MAXI J1659-152 was published recently in the journal Astronomy & Astrophysics.

No comments:

Post a Comment

China sets a world record 370-day for human life on the moon

The Beijing University of Aviation and Cosmonautics completed a 370-day experiment to simulate the lives of people on the moon, settin...