Optical (left) and NIR (right) spectra of WISE J0720. The low-resolution optical spectrum is plotted in black, the medium-resolution in red. The reddest part of the NIR spectrum, affected by a wavelength calibration problem (see Sect. 2.2 for details) is shown in gray. The gap at ~11 000 Å is an omitted cosmic ray hit. The insets on the left zoom in on the regions around the Hα and the Li I features, and the dotted vertical lines show their rest-frame positions. The mismatch between the fluxes of the three spectra are probably due to unaccounted for slit losses.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.