[3] The near-infrared spectrum shows water vapor (H2O), carbon monoxide (CO), iron hydride (FeH), sodium (Na) and potassium (K).

It also shows possibly metal absorption lines of calcium (Ca), iron (Fe), titanium (Ti) and chromium (Cr).

Additionally a higher than normal WISE W3 (about 10 μm) flux indicates the presence of dust around the object.

[4] In a follow-up paper, the team interpreted the hydrogen emission as either magnetic activity and/or weak accretion.

[1] Due to newly released Gaia astrometry, especially the difference in parallax, another team ruled out that the two 2MASS objects are a physical pair.