TY - JOUR
T1 - The C iv linewidth distribution for quasars and its implications for broad-line region dynamics and virial mass estimation
AU - Fine, S
AU - Croom, Scott
AU - Bland-Hawthorn, Joss
AU - Pimbblet, Kevin
AU - Ross, N
AU - Schneider, D P
AU - Shanks, T
PY - 2010
Y1 - 2010
N2 - We perform an extensive analysis of the C iv 1549 line in three large spectroscopic surveys of quasars. Differing approaches for fitting the C iv line can be found in the literature, and we compare the most common methods to highlight the relative systematics associated with each. We choose the line-fitting procedure that results in a symmetric profile for the C iv line and gives accurate fits to local emission features around the line, and use this approach to measure the width of the C iv line in spectra from the Sloan Digital Sky Survey (SDSS) and 2dF QSO Redshift (2QZ) and 2dF SDSS LRG And QSO (2SLAQ) surveys.
AB - We perform an extensive analysis of the C iv 1549 line in three large spectroscopic surveys of quasars. Differing approaches for fitting the C iv line can be found in the literature, and we compare the most common methods to highlight the relative systematics associated with each. We choose the line-fitting procedure that results in a symmetric profile for the C iv line and gives accurate fits to local emission features around the line, and use this approach to measure the width of the C iv line in spectra from the Sloan Digital Sky Survey (SDSS) and 2dF QSO Redshift (2QZ) and 2dF SDSS LRG And QSO (2SLAQ) surveys.
UR - http://onlinelibrary.wiley.com.ezproxy.lib.monash.edu.au/doi/10.1111/j.1365-2966.2010.17107.x/pdf
U2 - 10.1111/j.1365-2966.2010.17107.x
DO - 10.1111/j.1365-2966.2010.17107.x
M3 - Article
SN - 1365-2966
VL - 409
SP - 591
EP - 610
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 2
ER -