Figure 7 from Project 1640 Observations of Brown Dwarf GJ 758 B: Near-infrared Spectrum and Atmospheric Modeling

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Project 1640 Observations of Brown Dwarf GJ 758 B: Near-infrared Spectrum and Atmospheric Modeling

Authors: R. Nilsson, A. Veicht, P. A. Giorla Godfrey, E. L. Rice, J. Aguilar, L. Pueyo, L. C. Roberts, R. Oppenheimer, D. Brenner, S. H. Luszcz-Cook, E. Bacchus, C. Beichman, R. Burruss, E. Cady, R. Dekany, R. Fergus, L. Hillenbrand, S. Hinkley, D. King, T. Lockhart, I. R. Parry, A. Sivaramakrishnan, R. Soummer, G. Vasisht, C. Zhai, and N. T. Zimmerman

2017 The Astrophysical Journal 838 64.

Provider: AAS Journals

Caption: Figure 7.

(Top) χ² as a function of spectral type for T0–T9 objects. A third-order (blue) polynomial fit from T0–T9 based on the average χ² results per spectral type, and the average χ² points per spectral type (orange), are also shown. We derive a spectral type of T7.0 ± 1 from this spectral comparison. (Bottom) P1640 spectrum of GJ 758 B (black crosses) plotted with binned and trimmed SpeX Prism spectra of T5.5–T8.5 objects.

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