A striking image presented here 3 June at the meeting of the American Astronomical Society shows a globular cluster known as Palomar 5 being torn asunder
by tidal forces of our home galaxy.
When it's closer, the shape is distorted
by the tidal forces of Saturn.
The Moon is no exception; we can learn about the interior of our natural satellite from its deformation caused
by the tidal force of Earth.
Not exact matches
By absorbing the
force of strong winds and tides, wetlands protect terrestrial areas adjoining them from storms, floods, and
tidal damage.
Enceladus, we now know, is a moon being flexed and pulled
by the gravitational
tidal forces of Saturn.
The Galactic Cushion The Hubble Space Telescope recently beamed back pictures
of 29 dwarf galaxies in the Perseus Cluster that,
by all appearances, should have been torn to shreds
by the gravitational
tidal forces of their giant neighbors.
To begin with, they orbited close to the plane
of the ecliptic in the same direction as the planets, but their orbits were deformed
by the galaxy's
tidal force and
by interactions with nearby stars, gradually becoming more inclined and forming a more or less spherical reservoir,» Morais said.
Precise measurements
of the lunar gravity and rotation enable us to know how our natural satellite is deformed
by tidal forces.
During the last several years, the degree
of the lunar deformation caused
by the
tidal forces has been determined
by several orbiters, for example, Kaguya from Japan, Chang «e-1 from China, and Lunar Reconnaissance Orbiter (LRO) and Gravity Recovery and Interior Laboratory (GRAIL) from the USA.
This spot is believed to be the nucleus
of the former spiral galaxy, which was ejected from the system during the collision and is now being shredded
by tidal forces to produce the visible stellar stream.
Heat from the friction
of rocks caused
by tidal forces could be the «engine» for the hydrothermal activity on Saturn's moon Enceladus.
These special classes
of galaxy, so named for their extremely diffuse appearance, apparently produced far fewer stars than other galaxies or else were stripped
of them long ago
by galactic
tidal forces.
But now, the model says, Mars's moon Phobos is on a gravity - driven, 70 - million - year course back towards the planet, a path that will cause it to be ripped apart
by tidal forces and spun out into a new set
of rings.
Some stars in the spheroid are the remains
of galactic cannibalism, having come from dwarf galaxies that fell into the spiral galaxy, were ripped apart
by powerful
tidal forces, and were incorporated into the larger galaxy's structure.
Searching the far side Because the moon's rotation has been affected
by tidal forces between Earth and the moon, only one side
of the moon is visible from Earth.
The group, led
by physics professor emeritus Saul Rappaport, determined that in order for the planet to maintain its extremely tight orbit around its star, it would have to be incredibly dense, made almost entirely
of iron — otherwise, the immense
tidal forces from the nearby star would rip the planet to pieces.
On Titan, the largest features may be made
by changes in the thickness
of its ice shell due to
tidal forces from Saturn.
Ross began working with a team that included his adviser, Raymond Najjar, professor
of oceanography, Penn State, to pinpoint the precise effects
of sea - level rise
by subtracting other
forces that affect changes to the
tidal range.
At the center
of our galaxy, in the immediate vicinity
of its supermassive black hole, is a region wracked
by powerful
tidal forces and bathed in intense ultraviolet light and X-ray radiation.
While Saturn is mostly a gigantic shroud
of liquid hydrogen and liquid helium, it contains a rocky core — about 18 times the size
of Earth, which responds to
tidal forces from all
of Saturn's major moons
by bulging.
That low - density gas would cause enough drag for the Earth to drift inwards, even as
tidal forces caused
by the Earth's gravity
force the nearest side
of the sun to bulge outwards.
The lines are the first stages
of structural failure caused
by tidal forces between the moon and its parent planet.
A new study
by Kaloyan Penev et al suggests that Q varies a lot depending on the
tidal «
forcing period» (that is, the period at which a planet would appear to orbit, if viewed when rotating with the spinning star, with an extra factor
of a half since there are two tides per orbital cycle).
The researchers believe that
tidal forces created
by the gravitational pull
of the giant planet may have interrupted the magnetic field
of the star.
Development
of the new technique to detect planet warped
by tidal forces from their local star was detailed in the journal Monthly Notices
of the Royal Astronomical Society.
The warmth generated
by these
tidal forces is probably what allows the moon to sustain water in a liquid state — lots
of it.
The vast network
of crisscrossing cracks that are seen on the surface
of Europa are caused
by the intense
tidal forces of the massive, nearby Jupiter and the orbital resonances with the other nearby moons
of the Jovian system, similar to the way that the gravity
of the Earth's Moon causes tides on the oceans
of our home planet.
However, in rare instances, two
of these objects orbit each other so closely ---- orbiting every few minutes ---- so that the helium from the lighter
of the two gets pulled off
by tidal forces and accumulates on the more massive white dwarf.
The outskirts
of our Galaxy contain various stellar streams that are believed to be the remnants
of dwarf galaxies that were torn to shreds
by the strong
tidal force of the Milky Way.»
This hot slush is created
by tidal forces from the mammoth gravity
of Jupiter, which slowly knead the moon as it moves in its orbit, generating enormous amounts
of heat as rock crystals rub against each other.
In addition,
tidal forces affecting the Oort Cloud come from the differential gravitational
forces exerted
by stars in the Milky Way's galactic disk and
by the galactic core on the Sun and comets as a result
of their relative location in the Solar System, which have been modelled with numerical simulations (Duncan et al, 1987).
It is apparently in process
of being disrupted
by tidal gravitational
forces of its big massive neighbor in this encounter.
Saxena and his colleagues wanted to look at another potential form
of heating, caused
by tidal forces.
If the Pluto - Charon system formed via an impact, then a combination
of heat from the impact and heat from the
tidal forces induced
by Charon could be enough to sustain an ocean.
Its highly elliptical orbit is fairly stable, as S2 would have to come 70 times closer to the hole (16 light - minutes) to be at risk
of being destroyed
by tidal forces from the hole's gravity.
The Sagittarius Dwarf is believed to already have orbited the Milky Way about 10 times in the last billion years or so, and it still appears to have coherence as an elongated ellipse despite being torn apart
by enormous
tidal forces as a result
of the interaction.
Rather than going the Roland Emmerich «big tableaux
of destruction» route, Pompeii reduces the disaster to a series
of steeplechase set pieces, fiery debris raining into the 3 - D foreground as the characters scamper over bodies and ruins or try to outrun a ship that's been
forced inland
by a
tidal wave.
It's like being picked up and swept away
by a silent
force, a
tidal wave perhaps, and you feel your eyeballs squeeze against their sockets and your brain press against the back
of your skull.
Geopolitical links are balanced with familial ones
by way
of snippets
of Skype conversations between the artist and her mother across the Atlantic, establishing
tidal forces as both a divider and a connector.
For example, one series
of experiments found that QBO is likely
forced by seasonally - aliased monthly
tidal cycles.
So what if all
of the recognized periodic oscillations that comprise a whole laundry list
of acronyms supposed to be primary, but unpredictable internal
forcings of the natural variability, were but the secondary result
of the interactions
of the sun with the rest
of the solar system, topped off with a local
tidal focus created
by the moon?
Global models
of the tide height and depth - averaged
tidal currents are based on the well - understood physics
of gravitational
forcing by the Moon and the Sun, and the equations
of motion for the ocean.
And, the atmosphere also is affected
by these
tidal forces which could explain part
of what happens with the trade winds.
They do not calculate body - wide
tidal forces in their paper, but look at perturbations induced
by gravitational
forces directly on the inelastic material
of the sun «locally focussed
tidal effects» if you will.
If you work it out (
by all means, check my math), that means the
tidal force from the Moon acting at the surface
of the Earth's oceans is more than 1000 times greater than the
tidal force from Jupiter acting at the surface
of the Sun.
Guest Post
by Willis Eschenbach [Graphs updated to include error bars] Inspired
by the paper
by the charmingly - named Maya Tolstoy discussed here on WUWT, I decided to see if
tidal forces affect the timing
of earthquakes and volcanoes.
However it doesn't just stay in one place, but moves rapidly in a figure
of 8 pattern under the influence
of a rudder and the tether and lift
forces created
by the
tidal flow.