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LISA can detect binaries from Milky Way's globular clusters: Study

IANS  |  New York 

The European Space Agency's next-generation Interferometer Space Antenna (LISA) detector can potentially detect dozens of binary files in the globular clusters of the Milky Way, scientists say.

Globular clusters are dense environments containing millions of tightly packed stars and are efficient factories for sources.

LISA, which is expected to be in space in 2034, will be able to detect binary sources -- pairs of orbiting compact objects.

These binary sources will contain all combinations of black hole, neutron star and white dwarf components.

will also be sensitive to gravitational waves of a lower frequency than those detected by the Earth-bound Interferometer (LIGO)

"is sensitive to Milky Way systems and will expand the breadth of the spectrum, allowing us to explore different types of objects that aren't observable with LIGO," said Kyle Kremer, a doctoral student at the in Illinois, US.

While 150 globular clusters have been observed so far in the Milky Way, one out of every three clusters will produce a source.

Approximately eight black hole binaries will be detectable by LISA in our neighbouring galaxy of Andromeda and another 80 in nearby Virgo, the study showed.

The research, published by the journal Physical Review Letters, is the first to use realistic models to make detailed predictions of LISA sources.

The team used more than a hundred fully evolved models with properties similar to those of the observed globular clusters in the Milky Way.

The models were run on Quest, Northwestern's supercomputer cluster. This powerful resource can evolve the full 12 billion years of a globular cluster's life in a matter of days.

--IANS

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(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Sat, May 12 2018. 14:18 IST
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