Authors
Matthew Hasselfield, Matt Hilton, Tobias A Marriage, Graeme E Addison, L Felipe Barrientos, Nicholas Battaglia, Elia S Battistelli, J Richard Bond, Devin Crichton, Sudeep Das, Mark J Devlin, Simon R Dicker, Joanna Dunkley, Rolando Duenner, Joseph W Fowler, Megan B Gralla, Amir Hajian, Mark Halpern, Adam D Hincks, Renee Hlozek, John P Hughes, Leopoldo Infante, Kent D Irwin, Arthur Kosowsky, Danica Marsden, Felipe Menanteau, Kavilan Moodley, Michael D Niemack, Michael R Nolta, Lyman A Page, Bruce Partridge, Erik D Reese, Benjamin L Schmitt, Neelima Sehgal, Blake D Sherwin, Jon Sievers, Cristobal Sifon, David N Spergel, Suzanne T Staggs, Daniel S Swetz, Eric R Switzer, Robert Thornton, Hy Trac, Edward J Wollack
Publication date
2013/7/8
Journal
Journal of Cosmology and Astroparticle Physics
Volume
2013
Issue
07
Pages
008
Publisher
IOP Publishing
Description
We present a catalog of 68 galaxy clusters, of which 19 are new discoveries, detected via the Sunyaev-Zel'dovich effect (SZ) at 148 GHz in the Atacama Cosmology Telescope (ACT) survey on the celestial equator. With this addition, the ACT collaboration has reported a total of 91 optically confirmed, SZ detected clusters. The 504 square degree survey region includes 270 square degrees of overlap with SDSS Stripe 82, permitting the confirmation of SZ cluster candidates in deep archival optical data. The subsample of 48 clusters within Stripe 82 is estimated to be 90% complete forM 500c> 4.5× 10 14 M⊙ and redshifts 0.15< z< 0.8. While a full suite of matched filters is used to detect the clusters, the sample is studied further through a''Profile Based Amplitude Analysis''using a statistic derived from a single filter at a fixed θ 500= 5 farcm 9 angular scale. This new approach incorporates the cluster redshift along with …
Scholar articles
M Hasselfield, M Hilton, TA Marriage, GE Addison… - Journal of Cosmology and Astroparticle Physics, 2013