Editing Brown dwarf (section)

==== Sub-brown dwarf <span class="anchor" id="Sub-brown dwarf"></span> ====
{{Main|Sub-brown dwarf}}
[[File:Sol Cha-110913-773444 Jupiter.jpg|thumb|A size comparison between the [[Sun]], a young sub-brown dwarf, and [[Jupiter]]. As the sub-brown dwarf ages, it will gradually cool and shrink.]]

Objects below {{Jupiter mass|13}}, called '''sub-brown dwarfs''' or '''planetary-mass brown dwarfs''', form in the same manner as [[star]]s and brown dwarfs (i.e. through the collapse of a [[nebula|gas cloud]]) but have a [[Planetary-mass object|mass below the limiting mass for thermonuclear fusion]] of [[deuterium]].<ref>[http://www.dtm.ciw.edu/boss/definition.html Working Group on Extrasolar Planets – Definition of a "Planet"] {{webarchive|url=https://web.archive.org/web/20120702204018/http://www.dtm.ciw.edu/boss/definition.html |date=2012-07-02 }} Position statement on the definition of a "planet" (IAU)</ref>

Some researchers call them free-floating planets,<ref name="Delorme2012">{{cite journal |last1=Delorme |first1=Philippe |first2=Jonathan |last2=Gagné |first3=Lison |last3=Malo |first4=Céline |last4=Reylé |first5=Étienne |last5=Artigau |first6=Loïc |last6=Albert |first7=Thierry |last7=Forveille |first8=Xavier |last8=Delfosse |first9=France |last9=Allard |first10=Derek |last10=Homeier |title=CFBDSIR2149-0403: a 4–7 Jupiter-mass free-floating planet in the young moving group AB Doradus? |journal=Astronomy & Astrophysics |date=December 2012 |arxiv=1210.0305 |doi=10.1051/0004-6361/201219984 |bibcode=2012A&A...548A..26D |volume=548 |page=A26|s2cid=50935950 }}</ref> whereas others call them planetary-mass brown dwarfs.<ref name="Luhman20140421">{{cite journal |title=Discovery of a ~250 K Brown Dwarf at 2 pc from the Sun |journal=[[The Astrophysical Journal Letters]] |first=Kevin L. |last=Luhman |author-link=Kevin Luhman |volume=786 |issue=2 |page=L18 |date=21 April 2014 |doi=10.1088/2041-8205/786/2/L18 |arxiv=1404.6501 |bibcode=2014ApJ...786L..18L|s2cid=119102654 }}</ref>