TY - JOUR
T1 - Galaxy And Mass Assembly (GAMA): estimating galaxy group masses via caustic analysis
AU - Alpasian, M
AU - Robotham, A S G
AU - Driver, Simon P
AU - Norberg, Peder
AU - Peacock, John A
AU - Baldry, Ivan K
AU - Bland-Hawthorn, Jonathan
AU - Brough, Sarah
AU - Hopkins, Andrew Mark
AU - Kelvin, L
AU - Liske, J
AU - Loveday, J
AU - Merson, Alexander
AU - Nichol, Robert C
AU - Pimbblet, Kevin Alan
PY - 2012
Y1 - 2012
N2 - We have generated complementary halo mass estimates for all the groups in the Galaxy And Mass Assembly Galaxy Group Catalogue (GAMA G 3Cv1) using a modified caustic mass estimation algorithm, originally developed by Diaferio Geller. We calibrate the algorithm by applying it on a series of nine GAMA mock galaxy light cones and investigate the effects of using different definitions for group centre and size. We select the set of parameters that provide median-unbiased mass estimates when tested on mocks, and generate mass estimates for the real group catalogue.
AB - We have generated complementary halo mass estimates for all the groups in the Galaxy And Mass Assembly Galaxy Group Catalogue (GAMA G 3Cv1) using a modified caustic mass estimation algorithm, originally developed by Diaferio Geller. We calibrate the algorithm by applying it on a series of nine GAMA mock galaxy light cones and investigate the effects of using different definitions for group centre and size. We select the set of parameters that provide median-unbiased mass estimates when tested on mocks, and generate mass estimates for the real group catalogue.
UR - http://onlinelibrary.wiley.com.ezproxy.lib.monash.edu.au/doi/10.1111/j.1365-2966.2012.21020.x/pdf
U2 - 10.1111/j.1365-2966.2012.21020.x
DO - 10.1111/j.1365-2966.2012.21020.x
M3 - Article
SN - 0035-8711
VL - 426
SP - 2832
EP - 2846
JO - Monthly Notices of the Royal Astronomical Society
JF - Monthly Notices of the Royal Astronomical Society
IS - 4
ER -