MAR 26, 2018 07:14 PM PDT

Giant Exoplanet Orbiting a Brown Dwarf Revealed in Gravitational Microlensing Event

Astronomers are always hunting for worlds beyond our solar system to learn more about how our planetary neighborhood formed and whether life exists anywhere else in the universe.

Many exoplanets are too distant to find or observe directly, but with the help of a phenomenon known to the astronomical community as gravitational microlensing, we can sometimes become tipped off to their existence.

An artist's impression of a brown dwarf.

Image Credit: NASA/JPL-Caltech

One of the most recent discoveries involves a giant exoplanet with around 25% less mass than Jupiter. Dubbed OGLE-2017-BLG-1522Lb, the alien world resides within the bulge of the Milky Way galaxy where it orbits a brown dwarf sporting about 46 times the mass of Jupiter.

The findings have been made available in a paper published to the arXiv.org server.

Related: There could be more than 100 million brown dwarfs hiding throughout the Milky Way

Citing the paper, the astronomers found the distant world on August 7, 2017, during the Optical Gravitational Lensing Experiment (OGLE). They were using the Chilean-based 1.3m Warsaw telescope at the Las Campanas Observatory at the time.

As it would seem, a buffer zone of approximately 0.59 astronomical units separates OGLE-2017-BLG-1522Lb from its host star. Furthermore, it exists beyond what planetary scientists refer to as the ‘snow line,’ which means the exoplanet likely isn’t habitable.

The study comes with a truckload of uncertainties that need to be revisited in the future. For one, the brown dwarf’s mass isn’t set in stone yet, and this leaves an essential variable out of the research. On the flip side, this just might be the first-known giant exoplanet found orbiting around a brown dwarf host with a mass comparable to a planet.

It should be interesting to see whether the researchers can uncover more details about the system and solve the mystery of how it came to be. Only time will tell…

Source: Gizmodo

About the Author
  • Fascinated by scientific discoveries and media, Anthony found his way here at LabRoots, where he would be able to dabble in the two. Anthony is a technology junkie that has vast experience in computer systems and automobile mechanics, as opposite as those sound.
You May Also Like
SEP 05, 2018
Space & Astronomy
SEP 05, 2018
Saturn's Atmospheric Hexagon May Tower Higher Than Initially Thought
Although NASA’s Cassini mission ended almost one full year ago, researchers continue to analyze the stream of data the spacecraft beamed back to us b...
SEP 11, 2018
Space & Astronomy
SEP 11, 2018
Asteroid Mining Could Make Deep Space Missions Possible
  Deep space missions are faced with several challenges, including human safety and resource limitations, but asteroid mining could potentially solve...
OCT 08, 2018
Space & Astronomy
OCT 08, 2018
Hubble Space Telescope Forced to Sleep After Mechanical Failure
NASA’s Hubble Space Telescope, which launched into orbit around the Earth in 1990, remains one of the most powerful space observatories in service to...
OCT 09, 2018
Space & Astronomy
OCT 09, 2018
NASA's Voyager 2 Spacecraft is Almost to Interstellar Space
Just over six years ago, NASA’s Voyager 1 spacecraft became the first man-made object to fly beyond the heliopause and into interstellar space. Fast-...
OCT 24, 2018
Space & Astronomy
OCT 24, 2018
NASA's Parker Solar Probe Snaps a Picture of Earth
Back in August, a Delta IV Heavy rocket ignited its engines and lofted NASA’s highly-anticipated Parker Solar Probe into space. Just over one month l...
NOV 14, 2018
Space & Astronomy
NOV 14, 2018
Barnard's Star May Host an Exoplanet After All...
At six light-years away from Earth, Barnard’s Star holds the title of the second-closest stellar neighbor to our solar system. Astronomers have long...
Loading Comments...