Left: A representation of a star orbited by a planet. All the movement of the star is along the viewer's line-of-sight; Doppler spectroscopy will give a true value of the planet's mass. Right: In this case none of the star's movement is along the viewer's line-of-sight and the Doppler spectroscopy method will not detect the planet at all.
In astronomy, minimum mass is the lower-bound calculated mass of observed objects such as planets, stars and binary systems,[1] nebulae,[2] and black holes.
Minimum mass is a widely cited statistic for extrasolar planets detected by the radial velocity method or Doppler spectroscopy, and is determined using the binary mass function. This method reveals planets by measuring changes in the movement of stars in the line-of-sight, so the real orbital inclinations and true masses of the planets are generally unknown.[3] This is a result of sin i degeneracy.
If inclination i can be determined, the true mass can be obtained from the calculated minimum mass using the following relationship:
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theoretical minimummass the star can have and still undergo fusion at the core, is estimated to be about 75 MJ. When the metallicity is very low, the minimum star...
are based on the minimum mass per egg. Current sizing introduced in 1973; prior to 1973, sizes were based on the minimummass per dozen eggs in ounces:...
In the United States, the minimum wage is set by U.S. labor law and a range of state and local laws. The first federal minimum wage was instituted in the...
detected only by radial velocity, the listed value for mass is a lower limit. See Minimummass for more information. Lists of exoplanets List of directly...
subtraction). The invariant mass is the relativistic mass of the system when viewed in the center of momentum frame. It is the minimummass which a system may...
understood, but it is believed to be a potentially Earth-like planet with a minimummass of at least 1.07 M🜨 and only a slightly larger radius than that of Earth...
mass ratio with the central object below the L4/L5 instability (M/Mcentral < 2/(25+√621)) are "planets" (no matter how they formed). The minimummass/size...
well as being the sixth-closest Earth-mass planet orbiting within its star's habitable zone. The minimummass of this planet, as measured by the radial...
mass ratio with the central object below the L4/L5 instability (M/Mcentral < 2/(25+√621)) are "planets" (no matter how they formed). The minimummass/size...
HARPS instrument, was announced on 21 April 2009. This planet, at a minimummass of 1.9 Earths, was at the time the least massive confirmed exoplanet...
In astronomy, the binary mass function or simply mass function is a function that constrains the mass of the unseen component (typically a star or exoplanet)...
core. Intermediate-mass stars undergo helium fusion and develop a degenerate carbon–oxygen core. Massive stars have a minimummass of 5–10 M☉. These stars...
yields on impact so as to present a minimum hazard. A frangible structure is usually designed to be of minimummass. A frangible light pole base is designed...
planet's orbit, the true mass is likely to be close to the measured minimummass. Assuming that the true mass is the minimummass, the radius may be calculated...
field reaches the minimum of the potential, its quanta are not tachyons any more but rather are ordinary particles with a positive mass-squared. This is...
interior structure of rocky planets is mass-dependent: for example, plate tectonics may require a minimummass to generate sufficient temperatures and...
of 86%, is in the habitable zone of its parent star. GJ 1002 b has a minimummass of 1.08 Earth masses and is estimated by the Planetary Habitability Laboratory...
supply is burned out. Objects above the deuterium-fusion minimummass (deuterium burning minimummass, DBMM) will fuse all their deuterium in a very short...
detected, a minimummass for the planet can be determined from the changes in the star's radial velocity. To find a more precise measure of the mass requires...
{c^{2}J^{2}}{GM^{2}}}\leq GM^{2}} for a black hole of mass M. Black holes with the minimum possible mass satisfying this inequality are called extremal. Solutions...
star. The first self-consistent calculation of the hydrogen-burning minimummass confirmed a value between 0.07 and 0.08 solar masses for population I...
having a minimum of three. The Congressional Research Service narrows that definition further, only considering what it defines as "public mass shootings"...
throughout the star by convection. According to computer simulations, the minimummass a red dwarf must have to eventually evolve into a red giant is 0.25 M☉;...
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