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- Sudeep Das, Blake D Sherwin, +38 authors Ed Wollack
- Physical review letters
- 2011

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… (More)

- Blake D. Sherwin, Sudeep Das, +29 authors Ed Wollack
- 2015

We measure the cross-correlation of Atacama cosmology telescope cosmic microwave background (CMB) lensing convergence maps with quasar maps made from the Sloan Digital Sky Survey DR8 SDSS-XDQSO photometric catalog. The CMB lensing quasar cross-power spectrum is detected for the first time at a significance of 3.8σ, which directly confirms that the quasar… (More)

- Matthew Hasselfield, Matt Hilton, +40 authors Edward J. Wollack
- 2016

- Blake D Sherwin, Joanna Dunkley, +35 authors Ed Wollack
- Physical review letters
- 2011

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… (More)

- Nick Hand, Graeme E Addison, +55 authors Caroline Zunckel
- Physical review letters
- 2012

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… (More)

- J V Narlikar, R G Vishwakarma, Amir Hajian, Tarun Souradeep, G Burbidge, F Hoyle
- 2002

We calculate the expected angular power spectrum of the temperature fluctuations in the microwave background radiation (MBR) generated in the quasi-steady state cos-mology (QSSC). The paper begins with a brief description of how the background is produced and thermalized in the QSSC. We then discuss within the framework of a simple model, the likely sources… (More)

The statistical expectation values of the temperature fluctuations of cosmic microwave background (CMB) are assumed to be preserved under rotations of the sky. This assumption of statistical isotropy (SI) of the CMB anisotropy should be observationally verified since detection of violation of SI could have profound implications for cosmology. We propose a… (More)

The statistical expectation values of the temperature fluctuations and polarization of cosmic microwave background (CMB) are assumed to be preserved under rotations of the sky. We investigate the statistical isotropy (SI) of the CMB maps recently measured by the Wilkinson Microwave Anisotropy Probe (WMAP) using the bipolar spherical harmonic formalism… (More)

- Michael J. Wilson, Blake D. Sherwin, +23 authors Danica Marsden
- 2015

et al. (2012). Atacama Cosmology Telescope: A measurement of the thermal Sunyaev-Zel'dovich effect using the skewness of the CMB temperature distribution. Abstract We present a detection of the unnormalized skewness 3(n̂)> induced by the thermal Sunyaev-Zel'dovich (tSZ) effect in filtered Atacama Cosmology Telescope (ACT) 148 GHz cosmic microwave background… (More)

- Jonathan L. Sievers, Renee A. Hlozek, +90 authors Caroline Zunckel
- 2016