Examples of using Surface gravity in English and their translations into Russian
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GRAIL Mission Solves Mystery of Moon's Surface Gravity.
Their surface gravity is typically between 104 and 106 meters per second squared.
Stellar microturbulence varies with the effective temperature and the surface gravity.
This means that their surface gravity and density go up proportionally to their mass.
Several of its parameters,including its effective temperature and surface gravity, were found.
Surface gravity is measured in units of acceleration, which, in the SI system, are meters per second squared.
Eta Carinae A is losing a lot of mass due to its extreme luminosity and relatively low surface gravity.
The effective temperature, surface gravity, and microturbulence are nearly identical to the Sun's.
The fact that many large celestial objects are approximately spheres makes it easier to calculate their surface gravity.
Surface gravity study of the extra accuracy in scale 1:50000 on Kureisko-Gorbachinskoj territory.
It is sometimes useful to calculate the surface gravity of simple hypothetical objects which are not found in nature.
For example, the recently discovered planet, Gliese 581 c, has at least 5 timesthe mass of Earth, but is unlikely to have 5 times its surface gravity.
One can define the surface gravity for a black hole whose event horizon is a Killing horizon.
If it is an icy or watery planet, its radius might be as large as twice the Earth's, in which case its surface gravity might be no more than 1.25 times as strong as the Earth's.
Therefore, the surface gravity of Earth could be expressed in cgs units as 980.665 cm/s², with a base-10 logarithm(log g) of 2.992.
In particular, the spectrograph will allow determination of the temperature and surface gravity, which yield information about the atmospheres and thermal evolution of gas giants.
Owing to its low surface gravity, as much as half(or more) of the total mass of a carbon star may be lost by way of powerful stellar winds.
For a black hole, which must be treated relativistically, one cannot define a surface gravity as the acceleration experienced by a test body at the object's surface. .
The surface gravity κ{\displaystyle\kappa} of a static Killing horizon is the acceleration, as exerted at infinity, needed to keep an object at the horizon.
Recently there has been a shift towards defining the surface gravity of dynamical black holes whose spacetime does not admit a Killing vector field.
Exactly how these currents become established is still not well understood, butit is evident that it involves some interaction between horizontal surface currents and surface gravity waves.
Theory predicts that,owing to Altair's rapid rotation, its surface gravity and effective temperature should be lower at the equator, making the equator less luminous than the poles.
AMS Glossary, mathematical description A. Gnanadesikan and R.A. Weller, 1995·"Structure and instability of the Ekman spiral in the presence of surface gravity waves"· Journal of Physical Oceanography 25(12), pp. 3148-3171.
The neutron star's compactness gives it a surface gravity of up to 7×1012 m/s² with typical values of order 1012 m/s² that is more than 1011 times that of Earth.
The velocity curve is 90 degrees out of phase with the brightness curve,while the effective temperature and surface gravity acceleration curves appear to be in phase with the flux variations.
In plots of temperature against surface gravity, the short-period pulsators cluster together in the so-called empirical instability strip, approximately defined by T=28000-35000 K and log g=5.2-6.0.
If we let ρ M/V denote the mean density of the object, we can also write this as g 4 π 3 G ρ r{\displaystyleg={\frac {4\pi}{3}}G\rho r} so that,for fixed mean density, the surface gravity g is proportional to the radius r.
In astrophysics, the surface gravity may be expressed as log g, which is obtained by first expressing the gravity in cgs units, where the unit of acceleration is centimeters per second squared, and then taking the base-10 logarithm.
If k a{\displaystyle k^{a}} is a suitably normalized Killing vector,then the surface gravity is defined by k a∇ a k b κ k b,{\displaystyle k^{a}\,\nabla_{ a} k^{ b}=\ kappa k^{b},} where the equation is evaluated at the horizon.
The surface gravity may be thought of as the acceleration due to gravity experienced by a hypothetical test particle which is very close to the object's surface and which, in order not to disturb the system, has negligible mass.