WISE 1639-6847

Discovery Data

• Name: WISE J163940.83-684738.6

• Paper: Tinney et al. (2012)

• Spectral Type: Y0: or Y0-Y0.5

Spectral Type History

• Tinney et al. (2012): Y0: or Y0-Y0.5

• Schneider et al. (2015): Y0 pec

Photometry

Spitzer

• Schneider et al. (2015): [4.5]=13.537 (0.017)

• Leggett et al. (2017): [3.6]=16.23 (0.03), [4.5]=13.57 (0.03)

• Martin et al. (2018): [3.6] = 16.293 (0.029), [4.5] = 13.679 (0.016)

• Kirkpatrick et al. (2019): [3.6] = 16.186 (0.018), [4.5] = 13.588 (0.016)

HST

• Schneider et al. (2015): F105W=21.337 (0.026), F125W=21.151 (0.012)

Ground

• Tinney et al. (2012): J3(FourStar/Magellan)=20.62 (0.08), J2(FourStar/Magellan)=22.27 (0.10)

• Tinney et al. (2014): J3(FourStar/Magellan)=20.57 (0.05)

Spectroscopy

• Tinney et al. (2012): FIRE/Magellan, 1.0-2.5 μm, R=500 [ASCII][PNG]

• Schneider et al. (2015): WFC3/HST, 0.9-1.1 μm, R=210 and WFC3/HST, 1.1-1.70 μm, R=130 [ASCII] [PNG]

Parallax & Proper Motion

• Tinney et al. (2012): π=200 (20) mas, d=5 pc, μ=3069 (40) mas yr−1, P.A.=169.1 (0.4) deg

• Tinney et al. (2014): π=202.3 (3.1) mas, d=4.9 (0.1) pc, μ=3156.0 (3.5) mas yr−1, P.A. (deg)=169.3 (0.1)

• Martin et al. (2018): π=228.05 (8.93) mas, d= 4.39 (+0.18 −0.17) pc, μ_αcos(δ)=+579.09 (12.52) mas yr−1, μ_δ=−3104.54 (12.25) mas yr−1

• Kirkpatrick et al. (2019): π=211.9 (2.7) mas, d= 4.72 (0.06) pc, μ_αcos(δ)=582.0 (1.5) mas yr−1, μ_δ=−3099.8 (1.5) mas yr−1

Binarity

• Opitz et al. (2016): GeMS/Gemini, no evidence for binarity.