J1237+0647: In this spectrum Na I D is clearly detected while Ca II H& K are strongly blended with telluric absorptions, so there is no EW upper limit for Ca II D. Detection of H2 and CO in this system has been published by Noterdaeme et al. (2010a). The excitation of the CO rotational levels is used to measure TCMB. The spectrum used by Noterdaeme et al. (2010a) was obtained with UVES and the authors derive log N(HI) = 20.0 ± 0.15, to be compared with our measurement 19.89 ± 0.47. The system is also analysed by Daprà et al. (2016). Three components are used to fit the absorptions from C I and its fine structure lines. The components of Fe II and C I are in exactly the same place.
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.