Free Access

Table 3.

Survey parameters for Figs. 7 and 9.

Survey Central Freq DM range Reference
(MHz) (pc cm−3)
GBTIM 800 20–2000 1
GBNCC 350 0–500 2
UTMOST 843 100–2000 3
MWA-182 182 < 0–700 4
MWA-154 154 < 170–675 5
CHIME pf 600 20–2000 6
AO327 327 0–1095 7
+ LPPS 142 0–2000 8
× ARTEMIS 145 0–320 9
−− FRATS 135 10–500 10

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.