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  1. Article ; Online: 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

    Physical review letters

    2015  Volume 114, Issue 15, Page(s) 151302

    Abstract: 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 ... ...

    Abstract 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.
    Language English
    Publishing date 2015-04-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.114.151302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Evidence for dark energy from the cosmic microwave background alone using the Atacama Cosmology Telescope lensing measurements.

    Sherwin, Blake D / Dunkley, Joanna / Das, Sudeep / Appel, John W / Bond, J Richard / Carvalho, C Sofia / Devlin, Mark J / Dünner, Rolando / Essinger-Hileman, Thomas / Fowler, Joseph W / Hajian, Amir / Halpern, Mark / Hasselfield, Matthew / Hincks, Adam D / Hlozek, Renée / Hughes, John P / Irwin, Kent D / Klein, Jeff / Kosowsky, Arthur /
    Marriage, Tobias A / Marsden, Danica / Moodley, Kavilan / Menanteau, Felipe / Niemack, Michael D / Nolta, Michael R / Page, Lyman A / Parker, Lucas / Reese, Erik D / Schmitt, Benjamin L / Sehgal, Neelima / Sievers, Jon / Spergel, David N / Staggs, Suzanne T / Swetz, Daniel S / Switzer, Eric R / Thornton, Robert / Visnjic, Katerina / Wollack, Ed

    Physical review letters

    2011  Volume 107, Issue 2, Page(s) 21302

    Abstract: For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w = -1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power ... ...

    Abstract For the first time, measurements of the cosmic microwave background radiation (CMB) alone favor cosmologies with w = -1 dark energy over models without dark energy at a 3.2-sigma level. We demonstrate this by combining the CMB lensing deflection power spectrum from the Atacama Cosmology Telescope with temperature and polarization power spectra from the Wilkinson Microwave Anisotropy Probe. The lensing data break the geometric degeneracy of different cosmological models with similar CMB temperature power spectra. Our CMB-only measurement of the dark energy density Ω(Λ) confirms other measurements from supernovae, galaxy clusters, and baryon acoustic oscillations, and demonstrates the power of CMB lensing as a new cosmological tool.
    Language English
    Publishing date 2011-07-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.107.021302
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

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  3. Article ; Online: Detection of the power spectrum of cosmic microwave background lensing by the Atacama Cosmology Telescope.

    Das, Sudeep / Sherwin, Blake D / Aguirre, Paula / Appel, John W / Bond, J Richard / Carvalho, C Sofia / Devlin, Mark J / Dunkley, Joanna / Dünner, Rolando / Essinger-Hileman, Thomas / Fowler, Joseph W / Hajian, Amir / Halpern, Mark / Hasselfield, Matthew / Hincks, Adam D / Hlozek, Renée / Huffenberger, Kevin M / Hughes, John P / Irwin, Kent D /
    Klein, Jeff / Kosowsky, Arthur / Lupton, Robert H / Marriage, Tobias A / Marsden, Danica / Menanteau, Felipe / Moodley, Kavilan / Niemack, Michael D / Nolta, Michael R / Page, Lyman A / Parker, Lucas / Reese, Erik D / Schmitt, Benjamin L / Sehgal, Neelima / Sievers, Jon / Spergel, David N / Staggs, Suzanne T / Swetz, Daniel S / Switzer, Eric R / Thornton, Robert / Visnjic, Katerina / Wollack, Ed

    Physical review letters

    2011  Volume 107, Issue 2, Page(s) 21301

    Abstract: We report the first detection of the gravitational lensing of the cosmic microwave background through a measurement of the four-point correlation function in the temperature maps made by the Atacama Cosmology Telescope. We verify our detection by ... ...

    Abstract We report the first detection of the gravitational lensing of the cosmic microwave background through a measurement of the four-point correlation function in the temperature maps made by the Atacama Cosmology Telescope. We verify our detection by calculating the levels of potential contaminants and performing a number of null tests. The resulting convergence power spectrum at 2° angular scales measures the amplitude of matter density fluctuations on comoving length scales of around 100 Mpc at redshifts around 0.5 to 3. The measured amplitude of the signal agrees with Lambda cold dark matter cosmology predictions. Since the amplitude of the convergence power spectrum scales as the square of the amplitude of the density fluctuations, the 4σ detection of the lensing signal measures the amplitude of density fluctuations to 12%.
    Language English
    Publishing date 2011-07-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.107.021301
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Kategorien

    In stock of ZB MED Bonn / Germany

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  4. Article ; Online: Evidence of galaxy cluster motions with the kinematic Sunyaev-Zel'dovich effect.

    Hand, Nick / Addison, Graeme E / Aubourg, Eric / Battaglia, Nick / Battistelli, Elia S / Bizyaev, Dmitry / Bond, J Richard / Brewington, Howard / Brinkmann, Jon / Brown, Benjamin R / Das, Sudeep / Dawson, Kyle S / Devlin, Mark J / Dunkley, Joanna / Dunner, Rolando / Eisenstein, Daniel J / Fowler, Joseph W / Gralla, Megan B / Hajian, Amir /
    Halpern, Mark / Hilton, Matt / Hincks, Adam D / Hlozek, Renée / Hughes, John P / Infante, Leopoldo / Irwin, Kent D / Kosowsky, Arthur / Lin, Yen-Ting / Malanushenko, Elena / Malanushenko, Viktor / Marriage, Tobias A / Marsden, Danica / Menanteau, Felipe / Moodley, Kavilan / Niemack, Michael D / Nolta, Michael R / Oravetz, Daniel / Page, Lyman A / Palanque-Delabrouille, Nathalie / Pan, Kaike / Reese, Erik D / Schlegel, David J / Schneider, Donald P / Sehgal, Neelima / Shelden, Alaina / Sievers, Jon / Sifón, Cristóbal / Simmons, Audrey / Snedden, Stephanie / Spergel, David N / Staggs, Suzanne T / Swetz, Daniel S / Switzer, Eric R / Trac, Hy / Weaver, Benjamin A / Wollack, Edward J / Yeche, Christophe / Zunckel, Caroline

    Physical review letters

    2012  Volume 109, Issue 4, Page(s) 41101

    Abstract: Using high-resolution microwave sky maps made by the Atacama Cosmology Telescope, we for the first time present strong evidence for motions of galaxy clusters and groups via microwave background temperature distortions due to the kinematic Sunyaev-Zel' ... ...

    Abstract Using high-resolution microwave sky maps made by the Atacama Cosmology Telescope, we for the first time present strong evidence for motions of galaxy clusters and groups via microwave background temperature distortions due to the kinematic Sunyaev-Zel'dovich effect. Galaxy clusters are identified by their constituent luminous galaxies observed by the Baryon Oscillation Spectroscopic Survey, part of the Sloan Digital Sky Survey III. We measure the mean pairwise momentum of clusters, with a probability of the signal being due to random errors of 0.002, and the signal is consistent with the growth of cosmic structure in the standard model of cosmology.
    Language English
    Publishing date 2012-07-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 208853-8
    ISSN 1079-7114 ; 0031-9007
    ISSN (online) 1079-7114
    ISSN 0031-9007
    DOI 10.1103/PhysRevLett.109.041101
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 4' 58/153: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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