Free Access

Table 1

Signal-to-noise ratios in the FWHM of quasar broad emission lines for different values of GRVS.

line GRVS [mag] S / N FWHM,line

Hα 16.9 6
16.3 11
15.0 33

Hβ 17.1 5
15.9 12
14.8 32

MgII 16.9 6
16.1 11
15.3 23

CIII] 17.0 6
16.2 12

CIV 16.9 8

Notes. GRVS is the magnitude in the RVS. We calculated these values of S/N with Eq. (6).

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.