View source for OGLE-2016-BLG-1190Lb

{{short description|Exosolar object orbiting OGLE-2016-BLG-1190L}}
{{use dmy dates|date=November 2017}}
{{Infobox planet
| name                     = OGLE-2016-BLG-1190Lb
<!-- DISCOVERY           -->
| discoverer               = Ryu, Y.-H. et al<ref name="ARX-20171027" />
| discovery_site           = [[Spitzer Space Telescope]]<ref name="ARX-20171027" />
| discovered               = 2017<ref name="ARX-20171027" />
| discovery_method         = [[Gravitational microlensing]]<ref name="ARX-20171027" />
<!-- DESIGNATIONS        -->
<!-- ORBITAL             -->
| apsis                    = astron
| semimajor                = {{convert|2.17|AU|km|abbr=on}}<ref name="EXP-2017" />
| eccentricity             = 0.42<ref name="EXP-2017" />
| period                   = 1223.6 <ref name="EXP-2017" /> [[day|d]]
| inclination              = 41.2<ref name="EXP-2017" />
| star                     = [[OGLE-2016-BLG-1190L]]<ref name="ARX-20171027" />
<!-- PHYS CHARS          -->
| mass                     = 13.38<ref name="ARX-20171027" /><ref name="EXP-2017" /> {{Jupiter mass|link=y}}
<!-- ATMOSPHERE          -->
<!-- NOTES               -->
}}
'''OGLE-2016-BLG-1190Lb''' is an extremely massive [[exoplanet]], with a mass about 13.4 times that of [[Jupiter]] ({{Jupiter mass|link=y}}), or is, possibly, a low mass [[brown dwarf]], orbiting the [[G-type main-sequence star|G-dwarf star]] OGLE-2016-BLG-1190L, located about 22,000 light years from Earth, in the [[constellation]] of [[Sagittarius (constellation)|Sagittarius]], in the [[Bulge (astronomy)|galactic bulge]] of the [[Milky Way]].<ref name="ARX-20171027" /><ref name="PHYS-20171106" /><ref name="NWSWK-20171107" />
“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.<ref name="ARX-20171027" /><ref name="BGR-20171107" />
==Discovery==
The host star was discovered in June 2016 by the [[Optical Gravitational Lensing Experiment]] (OGLE) collaboration; the [[Spitzer Space Telescope]] observed the [[Gravitational microlensing|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 [[Brown dwarf#Low-mass brown dwarfs versus high-mass planets|planet/brown dwarf boundary]].<ref name="ARX-20171027" /><ref name="PHYS-20171106" /> In addition, the discovery "is likely to be the first Spitzer microlensing planet in the Galactic bulge/bar," according to the initial reported study.<ref name="ARX-20171027" />
==See also==
* [[OGLE-2005-BLG-169Lb]]
* [[OGLE-2005-BLG-390Lb]]
* [[OGLE-2016-BLG-1195Lb]]
* [[Optical Gravitational Lensing Experiment]] (OGLE)
==References==
{{Reflist|refs=
<ref name="ARX-20171027">{{cite journal |author=Ryu, Y.-H.|display-authors=etal|title=OGLE-2016-BLG-1190Lb: The FirstSpitzer ''Bulge'' Planet Lies Near the Planet/Brown-dwarf Boundary |journal=The Astronomical Journal|date=27 October 2017 |volume=155|page=40|doi=10.3847/1538-3881/aa9be4|arxiv=1710.09974|s2cid=54706921 |doi-access=free }}</ref>
<ref name="BGR-20171107">{{cite news |last=Wehner |first=Mike |title=Astronomers just spotted a planet so huge they aren't even sure it's really a planet |url=http://bgr.com/2017/11/07/huge-exoplanet-discovery-space-telescope-brown-dwarf/ |date=7 November 2017 |work=[[Boy Genius Report|BGR]] |access-date=10 November 2017 }}</ref>
<ref name="EXP-2017">{{cite encyclopedia |author=Staff |title=Planet OGLE-2016-BLG-1190L b |url=https://exoplanet.eu/catalog/ogle_2016_blg_1190l_b--6659/ |date=2017 |encyclopedia=[[Extrasolar Planets Encyclopaedia]] |access-date=10 November 2017 }}</ref>
<ref name="NWSWK-20171107">{{cite news |last=Bartels |first=Meghan |title=A Giant Exoplanet Is Hiding At The Center of the Milky Way Galaxy |url=http://www.newsweek.com/giant-exoplanet-hiding-center-milky-way-galaxy-704035 |date=7 November 2017 |work=[[Newsweek]] |access-date=10 November 2017 }}</ref>
<ref name="PHYS-20171106">{{cite web |last=Nowakowski |first=Tomasz |title=Extremely massive exoplanet discovered in the Milky Way's bulge |url=https://phys.org/news/2017-11-extremely-massive-exoplanet-milky-bulge.html |date=6 November 2017 |work=[[Phys.org]] |access-date=10 November 2017 }}</ref>
}}
== External links ==
* [http://www.physics.auckland.ac.nz/moa/ MOA collaboration]
* [https://web.archive.org/web/20180909152528/http://ogle.astrouw.edu.pl./ OGLE collaboration]
* [http://planet.iap.fr Planet Homepage]
* {{YouTube|5IqFXeYxOXM|Video (01:01) – OGLE-2016-BLG-1190Lb}}
{{Exoplanet|state=collapsed}}
{{2017 in space|state=collapsed}}
{{portal bar|Astronomy|Space}}
{{Sky|17|58|53.0|-|27|36|49|22000}}
{{DEFAULTSORT:OGLE-2016-BLG-1190Lb}}
[[Category:Exoplanets detected by microlensing]]
[[Category:Exoplanets discovered in 2017]]
[[Category:Sagittarius (constellation)]]