Quasar Feedback from WMAP and SDSS Cross-Correlation (2009)
Chatterjee, Suchetana, Ho, Shirley, Newman, Jeffrey A., Kosowsky, Arthur
We perform a cross-correlation analysis of microwave data from Wilkinson Microwave Anisotropy Probe and photometric quasars from the Sloan Digital Sky Survey, testing for Sunyaev-Zeldovich (SZ)...
The Acoustic Peak in the Lyman Alpha Forest (2009)
Slosar, Anže, Ho, Shirley, White, Martin, Louis, Thibaut
We present the first simulation of the signature of baryonic acoustic oscillations (BAO) in Lyman alpha forest data containing 180,000 mock quasar sight-lines. We use eight large dark-matter only...
Luminous Red Galaxy Population in Clusters at 0.2≤ z ≤0.6 (2009)
Ho, Shirley, Lin, Yen-Ting, Spergel, David, Hirata, Christopher M.
We investigate statistical properties of luminous red galaxies (LRGs) in a sample of X-ray-selected galaxy clusters at intermediate redshift (0.2 ≤ z ≤ 0.6) of mass range from ~1 × 10^(14) M_☉...
BigBOSS: The Ground-Based Stage IV Dark Energy Experiment (2009)
Schlegel, David J., Bebek, Chris, Heetderks, Henry, Ho, Shirley, Lampton, Michael, Levi, Michael, ...
The BigBOSS experiment is a proposed DOE-NSF Stage IV ground-based dark energy experiment to study baryon acoustic oscillations (BAO) and the growth of structure with an all-sky galaxy redshift...
On the peculiar momentum of baryons after Reionization (2009)
Hernandez-Monteagudo, Carlos, Ho, Shirley
The peculiar motion of ionized baryons is known to introduce temperature anisotropies in the CMB by means of the kinetic Sunyaev-Zel'dovich effect (kSZ). In this work, we present an all sky...
Finding the Missing Baryons Using CMB as a Backlight (2009)
Ho, Shirley, Dedeo, Simon, Spergel, David
We present a new method for detecting the missing baryons by generating a template for the kinematic Sunyaev-Zel'dovich effect. The template is computed from the product of a reconstructed velocity...
Constraints on local primordial non-Gaussianity from large scale structure (2008)
Slosar, Anže, Hirata, Christopher, Seljak, Uroš, Ho, Shirley, Padmanabhan, Nikhil
Recent work has shown that the local non-Gaussianity parameter fNL induces a scale dependent bias, whose amplitude is growing with scale. Here we first rederive this result within the context of the...
Constraints on local primordial non-Gaussianity from large scale structure (2008)
Slosar, Anže, Hirata, Christopher, Seljak, Uroš, Ho, Shirley, Padmanabhan, Nikhil
Recent work has shown that the local non-Gaussianity parameter fNL induces a scale dependent bias, whose amplitude is growing with scale. Here we first rederive this result within the context of the...
Ho, Shirley, Hirata, Christopher, Padmanabhan, Nikhil, Seljak, Uroš, Bahcall, Neta
We cross correlate large-scale structure (LSS) observations from a number of surveys with cosmic microwave background (CMB) anisotropies from the Wilkinson Microwave Anisotropy Probe (WMAP) to...
Ho, Shirley, Hirata, Christopher, Padmanabhan, Nikhil, Seljak, Uroš, Bahcall, Neta
We cross correlate large-scale structure (LSS) observations from a number of surveys with cosmic microwave background (CMB) anisotropies from the Wilkinson Microwave Anisotropy Probe (WMAP) to...
Correlation of CMB with large-scale structure. II. Weak lensing (2008)
Hirata, Christopher M., Ho, Shirley, Padmanabhan, Nikhil, Seljak, Uroš, Bahcall, Neta A.
We investigate the correlation of gravitational lensing of the cosmic microwave background (CMB) with several tracers of large-scale structure, including luminous red galaxies (LRGs), quasars, and...
Constraints on local primordial non-Gaussianity from large scale structure (2008)
Slosar, Anze, Hirata, Christopher, Seljak, Uros, Ho, Shirley, Padmanabhan, Nikhil
Recent work has shown that the local non-Gaussianity parameter f_NL induces a scale-dependent bias, whose amplitude is growing with scale. Here we first rederive this result within the context of...
Ho, Shirley, Hirata, Christopher M., Padmanabhan, Nikhil, Seljak, Uros, Bahcall, Neta
We cross-correlate large scale structure (LSS) observations from a number of surveys with CMB anisotropies from WMAP to investigate the Integrated Sachs-Wolfe (ISW) effect as a function of redshift,...
Correlation of CMB with large-scale structure: II. Weak lensing (2008)
Hirata, Christopher M., Ho, Shirley, Padmanabhan, Nikhil, Seljak, Uros, Bahcall, Neta
We investigate the correlation of gravitational lensing of the cosmic microwave background (CMB) with several tracers of large-scale structure, including luminous red galaxies (LRGs), quasars, and...
Luminous Red Galaxy Population in Clusters at $0.2\le z\le 0.6$ (2007)
Ho, Shirley, Lin, Yen-Ting, Spergel, David, Hirata, Christopher M.
We investigate statistical properties of LRGs in a sample of X-ray selected galaxy clusters at intermediate redshift ($0.2\le z\le0.6$). The LRGs are selected based on carefully designed color...
Constraints on the merging timescale of luminous red galaxies, or, where do all the halos go? (2007)
Conroy, Charlie, Ho, Shirley, White, Martin
In the LCDM cosmology dark matter halos grow primarily through the accretion of smaller halos. Much of the mass in a halo of 10^14Msun comes in through accretion of ~10^13Msun halos. If each such...
Cluster Ellipticities as a Cosmological Probe (2005)
Ho, Shirley, Bahcall, Neta, Bode, Paul
We investigate the dependence of ellipticities of clusters of galaxies on cosmological parameters using large-scale cosmological simulations. We determine cluster ellipticities out to redshift unity...
We study the strong gravitational lensing properties of galaxy clusters obtained from N-body simulations with standard $\Lambda$CDM cosmology. We have used the 32 most massive clusters from a...
Halo asphericity and the shear 3-pt function (2003)
We demonstrate through the use of a simple toy model that asphericity in dark matter halos has a measurable effect on the configuration dependence of the weak lensing shear 3-point function at small...
AN ECONOMIC ANALYSIS OF MILITARY INTELLIGENCE
The purpose of this paper is to provide an economic analysis of military intelligence by using the approach in contract theory to understand when a spy will be hired by a country, why a spy will...
Evolutionary Forces in a Banking System with Speculation and System Risk
For an N players coordination games, Tanaka (2000) proved that the notion of N/2 stability defined by Schaffer (1988) is a necessary and sufficient condition for long run equilibrium in an...