rotating neutron stars
DESCRIPTION
Phil Rosenfield, Fridolin Weber, Horst Lenske. Rotating Neutron Stars. Outline. Neutron stars: a short synopsis The structure of neutron stars Modeling neutron stars The equation of state Rotating or non-rotating Two results Conclusions. Introduction. - PowerPoint PPT PresentationTRANSCRIPT
Rotating Neutron StarsPhil Rosenfield, Fridolin Weber, Horst Lenske
Outline
Neutron stars: a short synopsis The structure of neutron stars Modeling neutron stars
The equation of state Rotating or non-rotating
Two results Conclusions
IntroductionA neutron star is left over from the supernova of a star not massive enough to leave a black hole.
Introduction
Mass: 1-2 MSun Radius: 10 - 15 km Huge magnetic
fields Extremely dense Fastest Rotation
Rate: 1122 Hz 107−9 in a typical
galaxyIf I could get my bike tires going that fast, I’d be moving at 1,700 mph.On the surface of a typical sized neutron star, particles are moving at 80%c!
Objects that don’t make sense, that can’t be explained with current theories, are the guides that lead us to better understanding our universe.
The structure of neutron stars
Modeling Neutron Stars
NON ROTATING
Spherically Symmetric Curved space-time
ROTATING
Poles shrink, equator bulges
Maximum rotation rate
Frame dragging
ResultsMASS-EQUATORIAL RADIUS Rotation Larger
Radius
PERIOD-MASS
Rotation More mass
Conclusions
Rotation matters These equations of
state can explain the fastest spinning neutron stars
What’s NextGoing to grad school – hope to look for more neutron stars