Editing Alpha Centauri (section)

=== Circumstellar discs ===
Based on observations between 2007 and 2012, a study found a slight excess of emissions in the 24&nbsp;[[Micrometre|μm]] (mid/far-infrared) band surrounding {{nobr|α Centauri AB}}, which may be interpreted as evidence for a sparse [[circumstellar disc]] or dense [[interplanetary dust cloud|interplanetary dust]].<ref name="Wiegart2014"/> The total mass was estimated to be between {{10^|-7}} to {{10^|-6}} the mass of the [[Moon]], or 10–100 times the mass of the Solar System's [[zodiacal cloud]].<ref name=Wiegart2014/> If such a disc existed around both stars, {{nobr|α Centauri A's}} disc would likely be stable to {{nobr|2.8 AU,}} and {{nobr|α Centauri B's}} would likely be stable to {{nobr|2.5 AU }}<ref name=Wiegart2014/> This would put A's disc entirely within the [[frost line (astrophysics)|frost line]], and a small part of B's outer disc just outside.<ref name=Wiegart2014>
{{cite journal
 |last1  = Wiegert    |first1  = J.            |last2  = Liseau     |first2  = R.
 |last3  = Thébault   |first3  = P.            |last4  = Olofsson   |first4  = G.
 |last5  = Mora       |first5  = A.            |last6  = Bryden     |first6  = G.
 |last7  = Marshall   |first7  = J.P.          |last8  = Eiroa      |first8  = C.
 |last9  = Montesinos |first9  = B.            |last10 = Ardila     |first10 = D.
 |last11 = Augereau   |first11 = J.C.          |last12 = Bayo Aran  |first12 = A.
 |last13 = Danchi     |first13 = W.C.          |last14 = del Burgo  |first14 = C.
 |last15 = Ertel      |first15 = S.            |last16 = Fridlund   |first16 = M.C.W.
 |last17 = Hajigholi  |first17 = M.            |last18 = Krivov     |first18 = A.V.
 |last19 = Pilbratt   |first19 = G.L.          |last20 = Roberge    |first20 = A.
 |last21 = White      |first21 = G.J.          |last22 = Wolf       |first22 = S.
 |display-authors = 6
 |date = March 2014
 |title = How dusty is {{nobr|α Centauri?}} Excess or non-excess over the infrared photospheres of main-sequence stars
 |journal = [[Astronomy & Astrophysics]]
 |volume = 563  |page = A102
 |doi = 10.1051/0004-6361/201321887  |bibcode = 2014A&A...563A.102W
 |arxiv = 1401.6896  |s2cid = 119198201
}}
</ref>