Sentences with phrase «precession occurs»

According to NASA, precession occurs when the curvature of space - time is warped by the gravity and rotation of a celestial body.

But orbital precession occurs only when two black holes have axes of rotation that point in random directions, and it disappears when the axes are both perpendicular to the orbital plane.

Not exact matches

The double pulsar PSR J0737 — 3039A / B consists of two neutron stars in a highly relativistic orbit that displays a roughly 30 - second eclipse when pulsar A passes behind pulsar B. Describing this eclipse of pulsar A as due to absorption occurring in the magnetosphere of pulsar B, we successfully used a simple geometric model to characterize the observed changing eclipse morphology and to measure the relativistic precession of pulsar B's spin axis around the total orbital angular momentum.

For the ice age — interglacial variations of the last few million years, a transition occured within the last million years where a 100,000 year timescale seemed to become dominant, whereas previously the variations followed the obliquity (~ 40,000 years) and precession cycles.

Tilt and precession account for a lot of the slow back and forth of the glaciers in between the major meltoffs, which occur every 100,000 years or so.

Here it is shown that the precession of perihelion occurring over a century substantially affects the intra-annual variation of solar radiation influx at different locations, especially higher latitudes, with northern and southern hemispheres being subject to contrasting insolation changes.

For precisely the same core reason (apsidal precession) the opposite occurs in the southern hemisphere: less insolation at far southern latitudes, sea ice melting delayed, albedo increasing, less energy absorbed: growing sea ice: the ice albedo feedback effect acting negatively.

Even MIS - 11, the Holsteinian interglacial, the last one, like the Holocene, to occur at an eccentricity minimum, netted perhaps 1.5 to 2 precession cycles.