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Evidence of lensing of the cosmic microwave background by dark matter halos.
Madhavacheril, Mathew; Sehgal, Neelima; Allison, Rupert; Battaglia, Nick; Bond, J Richard; Calabrese, Erminia; Caligiuri, Jerod; Coughlin, Kevin; Crichton, Devin; Datta, Rahul; Devlin, Mark J; Dunkley, Joanna; Dünner, Rolando; Fogarty, Kevin; Grace, Emily; Hajian, Amir; Hasselfield, Matthew; Hill, J Colin; Hilton, Matt; Hincks, Adam D; Hlozek, Renée; Hughes, John P; Kosowsky, Arthur; Louis, Thibaut; Lungu, Marius; McMahon, Jeff; Moodley, Kavilan; Munson, Charles; Naess, Sigurd; Nati, Federico; Newburgh, Laura; Niemack, Michael D; Page, Lyman A; Partridge, Bruce; Schmitt, Benjamin; Sherwin, Blake D; Sievers, Jon; Spergel, David N; Staggs, Suzanne T; Thornton, Robert; Van Engelen, Alexander; Ward, Jonathan T; Wollack, Edward J.
Affiliation
  • Madhavacheril M; Physics and Astronomy Department, Stony Brook University, Stony Brook, New York 11794, USA.
  • Sehgal N; Physics and Astronomy Department, Stony Brook University, Stony Brook, New York 11794, USA.
  • Allison R; Sub-Department of Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH, United Kingdom.
  • Battaglia N; McWilliams Center for Cosmology, Carnegie Mellon University, Department of Physics, 5000 Forbes Ave., Pittsburgh, Pennsylvania 15213, USA.
  • Bond JR; Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8.
  • Calabrese E; Sub-Department of Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH, United Kingdom.
  • Coughlin K; Department of Physics, University of Michigan, Ann Arbor, Michigan 48103, USA.
  • Crichton D; Department of Physics and Astronomy, The Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218-2686, USA.
  • Datta R; Department of Physics, University of Michigan, Ann Arbor, Michigan 48103, USA.
  • Devlin MJ; Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA.
  • Dunkley J; Sub-Department of Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH, United Kingdom.
  • Dünner R; Departamento de Astronomía y Astrofísica, Pontificía Universidad Católica, Casilla 306, Santiago 22, Chile.
  • Fogarty K; Department of Physics and Astronomy, The Johns Hopkins University, 3400 N. Charles St., Baltimore, Maryland 21218-2686, USA.
  • Grace E; Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USA.
  • Hajian A; Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8.
  • Hasselfield M; Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USA.
  • Hill JC; Department of Astronomy, Pupin Hall, Columbia University, New York, New York 10027, USA.
  • Hilton M; Astrophysics and Cosmology Research Unit, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban 4041, South Africa.
  • Hincks AD; Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4.
  • Hlozek R; Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USA.
  • Hughes JP; Department of Physics and Astronomy, Rutgers, The State University of New Jersey, Piscataway, New Jersey 08854-8019, USA.
  • Kosowsky A; Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
  • Louis T; Sub-Department of Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH, United Kingdom.
  • Lungu M; Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA.
  • McMahon J; Department of Physics, University of Michigan, Ann Arbor, Michigan 48103, USA.
  • Moodley K; Astrophysics and Cosmology Research Unit, School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Durban 4041, South Africa.
  • Munson C; Department of Physics, University of Michigan, Ann Arbor, Michigan 48103, USA.
  • Naess S; Sub-Department of Astrophysics, University of Oxford, Keble Road, Oxford OX1 3RH, United Kingdom.
  • Nati F; Dipartimento di Fisica, Università La Sapienza, P. le A. Moro 2, 00185 Roma, Italy.
  • Newburgh L; Dunlap Institute, University of Toronto, 50 St. George St., Toronto, Ontario, Canada M5S 3H4.
  • Niemack MD; Department of Physics, Cornell University, Ithaca, New York 14853, USA.
  • Page LA; Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USA.
  • Partridge B; Department of Physics and Astronomy, Haverford College, Haverford, Pennsylvania 19041, USA.
  • Schmitt B; Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA.
  • Sherwin BD; Berkeley Center for Cosmological Physics, LBL and Department of Physics, University of California, Berkeley, California 94720, USA.
  • Sievers J; Astrophysics and Cosmology Research Unit, School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4041, South Africa.
  • Spergel DN; National Institute for Theoretical Physics (NITheP), University of KwaZulu-Natal, Private Bag X54001, Durban 4000, South Africa.
  • Staggs ST; Department of Astrophysical Sciences, Peyton Hall, Princeton University, Princeton, New Jersey 08544, USA.
  • Thornton R; Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544, USA.
  • Van Engelen A; Department of Physics and Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104, USA.
  • Ward JT; Department of Physics, West Chester University of Pennsylvania, West Chester, Pennsylvania 19383, USA.
  • Wollack EJ; Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, Ontario, Canada M5S 3H8.
Phys Rev Lett ; 114(15): 151302, 2015 Apr 17.
Article in En | MEDLINE | ID: mdl-25933304
We present evidence of the gravitational lensing of the cosmic microwave background by 10(13) solar mass dark matter halos. Lensing convergence maps from the Atacama Cosmology Telescope Polarimeter (ACTPol) are stacked at the positions of around 12 000 optically selected CMASS galaxies from the SDSS-III/BOSS survey. The mean lensing signal is consistent with simulated dark matter halo profiles and is favored over a null signal at 3.2σ significance. This result demonstrates the potential of microwave background lensing to probe the dark matter distribution in galaxy group and galaxy cluster halos.
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Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2015 Type: Article Affiliation country: United States
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Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2015 Type: Article Affiliation country: United States