Sociology of science

Blue nodes represent core authors, green- newcomers joining during and after 2011, red-authors left network before or during 2011, and yellow-authors with once off involvement in 2011. Link colour represents when links were formed. Wider links are indicative of a higher frequency of co-authorship. Black links were established between 1997-2004, grey-2005-2011 and red-2012-2017. Triangular nodes represent continuant authors in the 2004 peak. Links between red nodes and their neighbours represent ties that were established and then severed over the 1997 to 2011 period. The more articles co-authored by an author the larger the node (see Abrahams et al 2019).