Discovery | |
---|---|
Discovered by | Ryu, Y.-H. et al [1] |
Discovery site | Spitzer Space Telescope [1] |
Discovery date | 2017 [1] |
Gravitational microlensing [1] | |
Orbital characteristics | |
2.17 AU (325,000,000 km) [2] | |
Eccentricity | 0.42 [2] |
1223.6 [2] d | |
Inclination | 41.2 [2] |
Star | OGLE-2016-BLG-1190L [1] |
Physical characteristics | |
Mass | 13.38 [1] [2] MJ |
OGLE-2016-BLG-1190Lb is an extremely massive exoplanet, with a mass about 13.4 times that of Jupiter ( MJ), or is, possibly, a low mass brown dwarf, orbiting the G-dwarf star OGLE-2016-BLG-1190L, located about 22,000 light years from Earth, in the constellation of Sagittarius, in the galactic bulge of the Milky Way. [1] [3] [4]
“Since the existence of the brown dwarf desert is the signature of different formation mechanisms for stars and planets, the extremely close proximity of OGLE-2016-BLG-1190Lb to this desert raises the question of whether it is truly a ‘planet’ (by formation mechanism) and therefore reacts back upon its role tracing the galactic distribution of planets," according to astronomers reporting the findings. [1] [5]
The host star was discovered in June 2016 by the Optical Gravitational Lensing Experiment (OGLE) collaboration; the Spitzer Space Telescope observed the microlensing event a few days after its discovery. OGLE-2016-BLG-1190Lb is the first exoplanet discovered by microlensing with the Spitzer space telescope and the first exoplanet discovered lying near the planet/brown dwarf boundary. [1] [3] In addition, the discovery "is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar," according to the initial reported study. [1]
Discovery | |
---|---|
Discovered by | Ryu, Y.-H. et al [1] |
Discovery site | Spitzer Space Telescope [1] |
Discovery date | 2017 [1] |
Gravitational microlensing [1] | |
Orbital characteristics | |
2.17 AU (325,000,000 km) [2] | |
Eccentricity | 0.42 [2] |
1223.6 [2] d | |
Inclination | 41.2 [2] |
Star | OGLE-2016-BLG-1190L [1] |
Physical characteristics | |
Mass | 13.38 [1] [2] MJ |
OGLE-2016-BLG-1190Lb is an extremely massive exoplanet, with a mass about 13.4 times that of Jupiter ( MJ), or is, possibly, a low mass brown dwarf, orbiting the G-dwarf star OGLE-2016-BLG-1190L, located about 22,000 light years from Earth, in the constellation of Sagittarius, in the galactic bulge of the Milky Way. [1] [3] [4]
“Since the existence of the brown dwarf desert is the signature of different formation mechanisms for stars and planets, the extremely close proximity of OGLE-2016-BLG-1190Lb to this desert raises the question of whether it is truly a ‘planet’ (by formation mechanism) and therefore reacts back upon its role tracing the galactic distribution of planets," according to astronomers reporting the findings. [1] [5]
The host star was discovered in June 2016 by the Optical Gravitational Lensing Experiment (OGLE) collaboration; the Spitzer Space Telescope observed the microlensing event a few days after its discovery. OGLE-2016-BLG-1190Lb is the first exoplanet discovered by microlensing with the Spitzer space telescope and the first exoplanet discovered lying near the planet/brown dwarf boundary. [1] [3] In addition, the discovery "is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar," according to the initial reported study. [1]