@article{groenewald_close_2017,
	title = {The close pair fraction of {BCGs} since \$z=0.5\$: major mergers dominate recent {BCG} stellar mass growth},
	volume = {1701},
	shorttitle = {The close pair fraction of {BCGs} since \$z=0.5\$},
	url = {http://adsabs.harvard.edu/abs/2017arXiv170109012G},
	abstract = {Using the redMaPPer cluster catalogue based on the Sloan Digital Sky 
Survey (SDSS) photometry, we investigate the importance of major mergers
in the stellar mass build-up of brightest cluster galaxies (BCGs)
between \$0.08 {\textbackslash}leq z {\textbackslash}leq 0.50\$. We use the SDSS spectroscopy,
supplemented with spectroscopic observations from the Southern African
Large Telescope at higher redshifts, to identify which BCGs and nearby
companions are potential major merger candidates. We use the pair
fraction as a proxy for the merger fraction in order to determine how
much stellar mass growth the BCGs have experienced due to major mergers.
We observe a weak trend of the BCG pair fraction increasing with
decreasing redshift, suggesting that major mergers may become more
important towards the present day. Major mergers are found to
contribute, on average, \$24 {\textbackslash}pm 14 \$ \$(29 {\textbackslash}pm 17)\$ per cent towards the
stellar mass of a present day BCG since \$z=0.32\$ (0.45), assuming that
half of the companion's stellar mass is accreted onto the BCG.
Furthermore, using our merger results in conjunction with predictions
from two recent semi-analytical models along with observational
measurements from the literature, we find that major mergers have
sufficient stellar material to account for the stellar mass growth of
the intracluster light between \$z=0.3\$ and \$z=0\$.},
	urldate = {2017-02-03},
	journal = {ArXiv e-prints},
	author = {Groenewald, Danièl N. and Skelton, Rosalind E. and Gilbank, David G. and Ilani Loubser, S.},
	month = jan,
	year = {2017},
	keywords = {Astrophysics - Astrophysics of Galaxies},
	pages = {arXiv:1701.09012},
}

{"_id":"oSj2tBoG6gJxXPdFx","bibbaseid":"groenewald-skelton-gilbank-ilaniloubser-theclosepairfractionofbcgssincez05majormergersdominaterecentbcgstellarmassgrowth-2017","author_short":["Groenewald, D. N.","Skelton, R. E.","Gilbank, D. G.","Ilani Loubser, S."],"bibdata":{"bibtype":"article","type":"article","title":"The close pair fraction of BCGs since \\$z=0.5\\$: major mergers dominate recent BCG stellar mass growth","volume":"1701","shorttitle":"The close pair fraction of BCGs since \\$z=0.5\\$","url":"http://adsabs.harvard.edu/abs/2017arXiv170109012G","abstract":"Using the redMaPPer cluster catalogue based on the Sloan Digital Sky Survey (SDSS) photometry, we investigate the importance of major mergers in the stellar mass build-up of brightest cluster galaxies (BCGs) between \\$0.08 {\\textbackslash}leq z {\\textbackslash}leq 0.50\\$. We use the SDSS spectroscopy, supplemented with spectroscopic observations from the Southern African Large Telescope at higher redshifts, to identify which BCGs and nearby companions are potential major merger candidates. We use the pair fraction as a proxy for the merger fraction in order to determine how much stellar mass growth the BCGs have experienced due to major mergers. We observe a weak trend of the BCG pair fraction increasing with decreasing redshift, suggesting that major mergers may become more important towards the present day. Major mergers are found to contribute, on average, \\$24 {\\textbackslash}pm 14 \\$ \\$(29 {\\textbackslash}pm 17)\\$ per cent towards the stellar mass of a present day BCG since \\$z=0.32\\$ (0.45), assuming that half of the companion's stellar mass is accreted onto the BCG. Furthermore, using our merger results in conjunction with predictions from two recent semi-analytical models along with observational measurements from the literature, we find that major mergers have sufficient stellar material to account for the stellar mass growth of the intracluster light between \\$z=0.3\\$ and \\$z=0\\$.","urldate":"2017-02-03","journal":"ArXiv e-prints","author":[{"propositions":[],"lastnames":["Groenewald"],"firstnames":["Danièl","N."],"suffixes":[]},{"propositions":[],"lastnames":["Skelton"],"firstnames":["Rosalind","E."],"suffixes":[]},{"propositions":[],"lastnames":["Gilbank"],"firstnames":["David","G."],"suffixes":[]},{"propositions":[],"lastnames":["Ilani","Loubser"],"firstnames":["S."],"suffixes":[]}],"month":"January","year":"2017","keywords":"Astrophysics - Astrophysics of Galaxies","pages":"arXiv:1701.09012","bibtex":"@article{groenewald_close_2017,\n\ttitle = {The close pair fraction of {BCGs} since \\$z=0.5\\$: major mergers dominate recent {BCG} stellar mass growth},\n\tvolume = {1701},\n\tshorttitle = {The close pair fraction of {BCGs} since \\$z=0.5\\$},\n\turl = {http://adsabs.harvard.edu/abs/2017arXiv170109012G},\n\tabstract = {Using the redMaPPer cluster catalogue based on the Sloan Digital Sky \nSurvey (SDSS) photometry, we investigate the importance of major mergers\nin the stellar mass build-up of brightest cluster galaxies (BCGs)\nbetween \\$0.08 {\\textbackslash}leq z {\\textbackslash}leq 0.50\\$. We use the SDSS spectroscopy,\nsupplemented with spectroscopic observations from the Southern African\nLarge Telescope at higher redshifts, to identify which BCGs and nearby\ncompanions are potential major merger candidates. We use the pair\nfraction as a proxy for the merger fraction in order to determine how\nmuch stellar mass growth the BCGs have experienced due to major mergers.\nWe observe a weak trend of the BCG pair fraction increasing with\ndecreasing redshift, suggesting that major mergers may become more\nimportant towards the present day. Major mergers are found to\ncontribute, on average, \\$24 {\\textbackslash}pm 14 \\$ \\$(29 {\\textbackslash}pm 17)\\$ per cent towards the\nstellar mass of a present day BCG since \\$z=0.32\\$ (0.45), assuming that\nhalf of the companion's stellar mass is accreted onto the BCG.\nFurthermore, using our merger results in conjunction with predictions\nfrom two recent semi-analytical models along with observational\nmeasurements from the literature, we find that major mergers have\nsufficient stellar material to account for the stellar mass growth of\nthe intracluster light between \\$z=0.3\\$ and \\$z=0\\$.},\n\turldate = {2017-02-03},\n\tjournal = {ArXiv e-prints},\n\tauthor = {Groenewald, Danièl N. and Skelton, Rosalind E. and Gilbank, David G. and Ilani Loubser, S.},\n\tmonth = jan,\n\tyear = {2017},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n\tpages = {arXiv:1701.09012},\n}\n\n","author_short":["Groenewald, D. N.","Skelton, R. E.","Gilbank, D. G.","Ilani Loubser, S."],"key":"groenewald_close_2017","id":"groenewald_close_2017","bibbaseid":"groenewald-skelton-gilbank-ilaniloubser-theclosepairfractionofbcgssincez05majormergersdominaterecentbcgstellarmassgrowth-2017","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2017arXiv170109012G"},"keyword":["Astrophysics - Astrophysics of Galaxies"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies"],"search_terms":["close","pair","fraction","bcgs","major","mergers","dominate","recent","bcg","stellar","mass","growth","groenewald","skelton","gilbank","ilani loubser"],"title":"The close pair fraction of BCGs since \\$z=0.5\\$: major mergers dominate recent BCG stellar mass growth","year":2017}