What is differential rotation quizlet?
Differential rotation. The tendency for a gaseous sphere, such as a jovian planet of the Sun, to rotate at a different rate at the equator than at the poles. More generally, a condition where the angular speed varies with location within an object. Great Red Spot.
What is Jupiter’s differential rotation and what does it indicate?
Jupiter also exhibits differential rotation. A solid body rotates at a single angular speed, but a liquid or gaseous body need not rotate as a solid. In the case of Jupiter, rotation is slightly faster at the equator than at the poles.
Does the equator of Jupiter rotate slower than the Great Red Spot?
The equator of Jupiter rotates slower than the Great Red spot. Jupiter's magnetic field is much stronger than Earth's, and has a magnetic tail that extends beyond the orbit of Saturn.
Does Jupiter have a differential rotation?
Abstract. Jupiter's atmosphere is rotating differentially, with zones and belts rotating at speeds that differ by up to 100 metres per second. Whether this is also true of the gas giant's interior has been unknown1,2, limiting our ability to probe the structure and composition of the planet3,4.
What is the effect of differential rotation?
Effects of differential rotation Differential rotation affects stellar optical absorption-line spectra through line broadening caused by lines being differently Doppler-shifted across the stellar surface. Solar differential rotation causes shear at the so-called tachocline.
What caused by the differential rotation of the Sun as equatorial rotation twists the magnetic field?
It rotates on it's axis about once every 27 days. But the equatorial region of the sun rotates faster, while the poles rotate slower. It is this differential rotation that winds up and twists the internal magnetic field into complex loops. These loops emerge above the surface of the sun (the photosphere) as sunspots.
What causes differential rotation?
Differential rotation is caused by convection in stars. The movement of mass is due to steep temperature gradients from the core outwards.
How do you determine differential rotation?
There are many ways to measure and calculate differential rotation in stars to see if different latitudes have different angular velocities. The most obvious is tracking spots on the stellar surface. By doing helioseismological measurements of solar "p-modes" it is possible to deduce the differential rotation.
What is interesting about Jupiter’s rotation period?
What is interesting about Jupiter's rotation period? It is the fastest in the solar system.
When comparing the densities of the Galilean moons The farther from Jupiter the greater their density?
When comparing the densities of the Galilean moons, the farther from Jupiter, the greater their density. All four of the Galilean moons have substantial amounts of liquid water under a surface layer of ice. Some of Jupiter's smaller outer moons have retrograde orbits, indicating capture occurred.
What is solar differential rotation?
The solar surface rotates differentially in terms of latitude (e.g., Schroeter 1985), which is called differential rotation. The rotation is fastest near the equator and slower at high latitudes. At the equator, the sun rotates approximately once every 25 days, and it takes more than 30 days near the poles.
What is the meaning of differential rotation?
In a rotating solid body, regions that are adjacent at one point in time will remain adjacent as the body rotates. This means that points further from the rotation centre will travel at greater speeds than those closer in.
What term explains why the Sun rotates faster at its equator than at its poles?
No the sun rotates faster on the equator than on the poles making it not completely spherical. This is called differential rotation.
Why does the Sun display different Synodic rotation periods?
The synodic period is longer because the Sun must rotate for a sidereal period plus an extra amount due to the orbital motion of the Earth around the Sun.
What determines the rotation of a planet?
There is no force that causes the planets to rotate. Most of the rotation comes about from the conservation of angular momentum. Angular momentum is given by L=m*w*r2 where m is the mass, w is the angular velocity in radians per second, and r is the radius of the circular motion.
Does it rain diamonds on Jupiter?
New research by scientists apparently shows that it rains diamonds on Jupiter and Saturn. In fact the planets have the capability to create 1000 tonnes of diamonds a year.
What is the relationship between density and distance for the four Galilean moons of Jupiter?
Fluctuations in the orbits of the moons indicate that their mean density decreases with distance from Jupiter. Callisto, the outermost and least dense of the four, has a density intermediate between ice and rock whereas Io, the innermost and densest moon, has a density intermediate between rock and iron.
Which of the following is the correct order of Galilean moons according to their decreasing size?
The Voyager missions helped determine these masses and, therefore, their densities. In size, from largest to smallest, the correct order for the Galilean moons is: Ganymede, Callisto, Io, Europa.
What is differential rotation in astronomy?
Differential rotation is seen when different parts of a rotating object move with different angular velocities (rates of rotation) at different latitudes and/or depths of the body and/or in time. This indicates that the object is not solid. In fluid objects, such as accretion disks, this leads to shearing.
What is differential rotation of the Sun?
However, unlike Earth which rotates at all latitudes every 24 hours, the Sun rotates every 25 days at the equator and takes progressively longer to rotate at higher latitudes, up to 35 days at the poles. This is known as differential rotation. The Sun rotates in the same direction as Earth.
What causes differential rotation of the Sun?
Differential rotation is caused by convection in stars. The movement of mass is due to steep temperature gradients from the core outwards.
Why do planets spin at different rates?
But planets spin at different speeds, for two reasons: First, the material joining each growing planet was moving in different ways and at different speeds. Second, each planet ended up with a different mass. Like bigger or smaller skaters, they all spin at different speeds.
What determines rotation speed?
The speed at which an object rotates or revolves is called rotational speed. Unlike linear speed, it is defined by how many rotations an object makes in a period of time. The formula for rotational speed is Rotational speed = rotations / time but linear speed = distance / time.
Where is Black diamond found?
They are found in only two regions of the world—Brazil and the Central African Republic—and can grow astonishingly large. The group includes the hulking 3,167-carat Brazilian carbonado known as Sergio—the largest diamond ever found.
How Are diamonds Made?
0:081:43How are Diamonds Made? – YouTubeYouTube
What do the densities of the moons of Jupiter tell us about their origin?
As a rule, the mean density of Jupiter's moons decrease with their distance from the planet. Callisto, the least dense of the four, has an intermediate density between ice and rock, whereas Io has a density that indicates its made of rock and iron.
Which of the Galilean moons is not in orbital resonance with any of the other Galilean moons?
Callisto Callisto is not a member of the orbital resonance that affects the three inner Galilean moons. Because of this, Callisto doesn't experience the same type of tidal heating. On the other hand, Callisto is tidally locked to its host planet.
How do the Galilean satellites compare to these bodies in terms of size?
THE GALILEAN MOONS AS A MODEL OF THE INNER SOLAR SYSTEM They range in size from slightly smaller than Earth's Moon (Europa) to slightly larger than Mercury (Ganymede).
What is meant by differential rotation?
In a rotating solid body, regions that are adjacent at one point in time will remain adjacent as the body rotates. This means that points further from the rotation centre will travel at greater speeds than those closer in.
What determines the rotation speed of a planet?
The speed a planet rotate depends on the angular momentum it has after forming. This is influenced by a host of factors, from the composition of the planet, to its distance from the star and the gravity it experiences as well as any impacts it experiences such as comets hitting it.