GW200115: Simulation of a Black Hole Merging with a Neutron Star
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Credit & Copyright: Simulation:
S.V. Chaurasia
(Stockholm U.),
T. Dietrich
(Potsdam U.
&
MPIGP);
Visualization: T. Dietrich (Potsdam U. & MPIGP), N. Fischer, S. Ossokine, H. Pfeiffer (MPIGP)
Explanation:
What happens when a black hole destroys a neutron star?
Analyses indicate that just such an event created gravitational wave event
GW200115,
detected in 2020 January by
LIGO and
Virgo observatories.
To better understand the unusual event, the
featured visualization was created from a computer simulation.
The visualization video starts with the
black hole (about 6 times the Sun's mass) and
neutron star (about 1.5 times the Sun's mass) circling each other,
together emitting an increasing amount of
gravitational radiation.
The picturesque pattern of
gravitational wave emission is shown in blue.
The duo
spiral together increasingly fast until the
neutron star becomes completely absorbed by the
black hole.
Since the neutron star did not break apart during
the collision, little light escaped --
which matches the lack of an observed optical counterpart.
The remaining black hole
rings briefly,
and as that dies down so do the emitted gravitational waves.
The 30-second
time-lapse video may seem short,
but it actually lasts about 1000 times longer than the real merger event.
Visualization: T. Dietrich (Potsdam U. & MPIGP), N. Fischer, S. Ossokine, H. Pfeiffer (MPIGP)
Astrophysicists:
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A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
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Публикации с ключевыми словами:
black hole - neutron star - gravitational radiation - черные дыры - нейтронные звезды - гравитационные волны
Публикации со словами: black hole - neutron star - gravitational radiation - черные дыры - нейтронные звезды - гравитационные волны | |
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