Astronomers Discover Brown Dwarf Binary Star

Brown dwarves are less massive than the sun and are unable to burn hydrogen. Among them there is a bridge (at least in the mass) between planets (stars), and astronomers think they grow differently from planets or stars. Gravity microlensing is an excellent method to detect them because it does not depend on their light, which is dim, rather their mass. When a star passes through the path of light as a brown dwarf which acts as a lens, It is magnified in a distorted image, such as the object seen through a glass of wine, allows the detection of the lens object and characterization. So far, thirty-two brown dwarves have been detected by microlencing. Five are in isolation, but most of the binary systems are in, the companions m-dwarf stars are unconscious. They provide significant obstacles on brown dwarf formation scenarios. Astronomers Discover Brown Dwarf Binary Star..

It is the mass of a brown dwarf, but it is difficult to measure the mass of the lens using micrilining. Using this method, it measures a magnified and distorted stellar image because it changes in time (it changes as the vantage point of the Earth), but the technique does not provide any handle at the distance, and the larger the distance The same amount of mass is needed. To generate uniform-sized distortion. Accepting this problem, scientists had predicted that if ever a microlensing flash is inspected by two different vantage points, then a parallax measurement (a clear angular difference between the star’s position, as Will be determined from two different sites). Distance of dark object The Spitzer Space Telescope enters the Sun into Earth’s orbit, and is currently 1.66 celestial units away from the Earth (the average distance of an Au plane is. Spitzer is unique in this ability, and it has been used successfully to measure parallax distances for hundreds of microlaning events, thereby helping to determine the mass of the lens.

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CfA astronomer Jennifer Yi and In-Gu Shin were members of a large team of microlencing astronomers who used Spitzer to work with ground-based telescopes to study an unusual microlencing incident. Object, MOA-2016-BLG-231, is located 9400 light years away in our galaxy’s disk. The shape of its perforated light curve reveals that it is a pair of twenty-one and nine brown-brown dwarves of Jupiter-masses, respectively (right on the lower mass limit to be brown dwarf than a giant Is the planet). Object, MOA-2016-BLG-231, is located 9400 light years away in our galaxy’s disk. The size of its perforated light curve reveals that it is a pair of twenty-one masses of Jupiter-mass and 9 brown-brown dwarfs, respectively (in comparison to a mass, this planet on low mass limit for brown dwarf is).

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