Open Access

Table 2.

Mean values of the measured parameters for different FWHM Fe II ranges.

(1) (2) (3) (4) (5) (6)
Width range FWHM FeII> 6000 4000< FWHM FeII< 6000 2000< FWHM FeII< 4000 FWHM FeII< 2000 ( 5 ) ( 2 ) Mathematical equation: $ \frac{(5)}{(2)} $
[255] [175] [327] [256]
FWHM Fe II 8969 ± 2201 4901 ± 603 2827 ± 524 1648 ± 234 0.18
FWHM Hβ 5778 ± 1965 4023 ± 1311 3463 ± 1155 2746 ± 930 0.47
RFeII 0.36 ± 0.19 0.41 ± 0.23 0.59 ± 0.29 0.91 ± 0.43 2.53
EW Fe IItot 108 ± 49 119 ± 61 167 ± 78 215 ± 84 2.00
EW Fe IIcons 84 ± 34 85 ± 37 103 ± 47 129 ± 49 1.54
EW FeIIincons 24 ± 18 34 ± 29 65 ± 35 87 ± 37 3.62
Fe IIincons/Fe IItot 0.20 ± 0.11 0.26 ± 0.12 0.37 ± 0.10 0.40 ± 0.06 2.00
EW Fe IIILR 7 ± 23 34 ± 26 49 ± 24
EW Fe IIVBLR 82 ± 35 77 ± 34 69 ± 37 80 ± 32 0.98
Fe IIILR/Fe IIcons 0.06 ± 0.18 0.31 ± 0.21 0.38 ± 0.13
EW Hβ 110 ± 26 102 ± 25 101 ± 29 88 ± 36 0.80
REdd 0.09 ± 0.08 0.13 ± 0.12 0.20 ± 0.16 0.30 ± 0.25 3.33

Notes. Table contains mean values ± standard deviation. The number of objects in each FWHM Fe II range is given in brackets. The FWHMs of lines are given in km s−1, and EWs are given in Å. Column (6) gives the ratios between the mean values obtained for the subsets with the narrowest and with the broadest Fe II widths (columns 5 and 2).

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.