The co-author of the study, Andrzej Udalski (Andrzej Udalski) announced: “Our findings show that it is possible to use ground-based telescopes to detect and characterize low-mass free-floating planets.”
The little rogue planet is by far the smallest free-floating exoplanet candidate https://t.co/NCPKgJBb4h pic.twitter.com/v0xbu83h66
-SPACE.com (@SPACEdotcom) October 29, 2020
So far, although astronomers have discovered 4000 exoplanets-and there may be more rogue planets than those with host stars-detecting rogue planets is more difficult than it seems, because for scientists , The host star has no light to help discover the earth.
The OGLE project used the Las Campanas Observatory in Chile to discover the rogue planet using gravitational microlensing technology.
As Space.com explains, this method of searching for planets “involves observing foreground objects passing in front of distant background stars. When this happens, close objects can act as a gravitational lens in a way that can reveal the light from the star. The mass and other characteristics of the objects in the foreground that bend and magnify.”
The lead author of the study, Przemek Mroz of the California Institute of Technology, explained that the chances of such a microlensing event are “slender” because it requires the perfect alignment of the light source, the telescope lens, and the observer. Moroz said: “If we observe only one star, we will have to wait nearly a million years to see that the source is a microlens.
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For more scientific news, please read the evidence of parallel universes in parallel time. Someone in the cosmic cloud claims that “Galactus is coming!” NASA discovered water on the moon. This is a black widow star and a gamma ray. We do Live in a simulation with a frightening 50-50 chance and watch the footage of the Osiris-Rex probe landing on an asteroid.