The Atacama Cosmology Telescope: Detection of Sunyaev-Zel'Dovich Decrement in Groups and Clusters Associated with Luminous Red Galaxies

@article{Hand2011TheAC,
  title={The Atacama Cosmology Telescope: Detection of Sunyaev-Zel'Dovich Decrement in Groups and Clusters Associated with Luminous Red Galaxies},
  author={N. Hand and J. Appel and N. Battaglia and J. Bond and S. Das and M. Devlin and J. Dunkley and R. Dunner and T. Essinger-Hileman and J. Fowler and A. Hajian and M. Halpern and M. Hasselfield and M. Hilton and A. Hincks and R. Hlozek and J. Hughes and K. Irwin and J. Klein and A. Kosowsky and Y. Lin and T. Marriage and D. Marsden and M. McLaren and F. Menanteau and K. Moodley and M. Niemack and M. Nolta and L. Page and Lucas Parker and B. Partridge and R. Plimpton and E. Reese and F. Rojas and N. Sehgal and B. Sherwin and J. Sievers and D. Spergel and S. Staggs and D. Swetz and E. Switzer and R. Thornton and H. Trac and K. Visnjic and Edward J. Wollack},
  journal={The Astrophysical Journal},
  year={2011},
  volume={736},
  pages={39}
}
  • N. Hand, J. Appel, +42 authors Edward J. Wollack
  • Published 2011
  • Physics
  • The Astrophysical Journal
  • We present a detection of the Sunyaev-Zel'dovich (SZ) decrement associated with the luminous red galaxy (LRG) sample of the Sloan Digital Sky Survey. The SZ data come from 148 GHz maps of the equatorial region made by the Atacama Cosmology Telescope. The LRG sample is divided by luminosity into four bins, and estimates for the central SZ temperature decrement are calculated through a stacking process. We detect and account for a bias of the SZ signal due to weak radio sources. We use numerical… CONTINUE READING
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