MAR 26, 2018 7:14 PM PDT

Giant Exoplanet Orbiting a Brown Dwarf Revealed in Gravitational Microlensing Event

WRITTEN BY: Anthony Bouchard

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
AUG 05, 2020
Space & Astronomy
Mars Was Shaped by Ice Sheets - not Rivers
AUG 05, 2020
Mars Was Shaped by Ice Sheets - not Rivers
Physicists have found that in the distant past, Mars may not have been warm enough to carry vast oceans. Instead, in new ...
SEP 08, 2020
Space & Astronomy
Reusable Chinese Space Craft Lands Returns Earth
SEP 08, 2020
Reusable Chinese Space Craft Lands Returns Earth
The Chinese government has announced the safe return of a reusable spacecraft, called Chongfu Shiyong Shiyan Hangtian Qi ...
OCT 01, 2020
Space & Astronomy
Four Lakes Detected Under Martian Surface
OCT 01, 2020
Four Lakes Detected Under Martian Surface
  Researchers from Roma Tre University in Italy have confirmed the existence of four large lakes under the ice at M ...
OCT 03, 2020
Chemistry & Physics
New observations on supermassive black holes
OCT 03, 2020
New observations on supermassive black holes
New observations from the European Southern Observatory's Very Large Telescope (VLT) provide insight on how supermas ...
OCT 29, 2020
Space & Astronomy
Water Found on Moon Enough to Sustain a Lunar Base
OCT 29, 2020
Water Found on Moon Enough to Sustain a Lunar Base
For the first time, scientists have found water on the moon's sunlit surface. Coupled with other evidence of water i ...
NOV 04, 2020
Space & Astronomy
Missing Link Between Fast Radio Bursts & Magnetars Found in Our Galaxy
NOV 04, 2020
Missing Link Between Fast Radio Bursts & Magnetars Found in Our Galaxy
A neutron star is born when a massive star dies out in a supernova, leaving its collapsed and incredibly dense core rema ...
Loading Comments...