Astronomers identify rare binary brown dwarfs, Astronomers working on the results of the “first light” of a newly launched telescope in Chile have found opportunities that lead to the identification of a rare dark brown binary brown dwarf system.
SPECULOOS ‘mission is to explore planets around extremely cold dwarfs, a category that includes stars and the smallest objects in existence called “brown dwarfs”.
Brown dwarfs are “star-shaped” objects, i.e. they are smaller than stars but larger than a planet.
Chocolate dwarfs cannot support the synthesis of hydrogen in helium, a process that feeds light from normal stars such as the sun.
Astronomers estimate that this extremely cold dwarf must accommodate large populations of nearby rocky planets, which may be habitable, which offer many opportunities to explore various atmospheres and climates.
One example is the TRAPPIST-1 7-planet system discovered by members of the same team.
Shortly after the construction of the first SPECULOOS telescope and during test observations, the team was directed to the famous brown dwarf 2MASSW J1510478-281817, renamed 2M1510, in the constellation Libra. Astronomers identify rare binary brown dwarfs.
SPECULOOS observations have received a clear signal directing researchers to speculate that 2M1510 could be two brown dwarfs, not one that orbits each other.
During the first test observations, we changed one of our telescopes to become the famous brown dwarf. But suddenly the object seemed dim for about 90 minutes, indicating that the object was getting dark.
Researchers can confirm their hypothesis with two more powerful telescopes, the 10-meter biscuit telescope in Hawaii and the very large 8-meter telescope in Chile.
VLT is based on the same object as the SPECULOOS telescope used for observation. Keck and VLT have sensitive spectrometers through which celestial bodies can be measured.
In the case of 2M1510, astronomers recognized the speed of two brown dwarfs as they moved around them.
Detection of dark dwarfs is very rare, despite other systems that have been identified so far.
With this system, astronomers can directly measure the radius and mass of brown dwarfs, which are the fundamental dimensions for theoretical models. Astronomers identify rare binary brown dwarfs.
2M1510 is also special because thanks to its membership in the narrow group of young stars, Argus Mobile Group, it is one of the few chocolate gnomes of a certain age.
By bringing together all these elements, we can test theoretical models of how brown dwarf cools, a model that is more than 30 years old.