New Perspective on Galaxy Clustering as a Cosmological Probe: General Relativistic Effects (2009)
Yoo, Jaiyul, Fitzpatrick, A. Liam, Zaldarriaga, Matias
We present a general relativistic description of galaxy clustering in a FLRW universe. The observed redshift and position of galaxies are affected by the matter fluctuations and the gravity waves...
A quantitative explanation of the observed population of Milky Way satellite galaxies (2009)
Koposov, Sergey E., Yoo, Jaiyul, Rix, Hans-Walter, Weinberg, David H., Macciò, Andrea V., Miralda-Escudé, Jordi
We revisit the well known discrepancy between the observed number of Milky Way (MW) dwarf satellite companions and the predicted population of cold dark matter (CDM) sub-halos, in light of the dozen...
Yoo, Jaiyul, Miralda-Escudé, Jordi
Measurements of the baryonic acoustic oscillation (BAO) peak in the redshift-space correlation function yield the angular diameter distance D_A(z) and the Hubble parameter H(z) as a function of...
We present a coherent theoretical framework for computing gravitational lensing effects and redshift-space distortions in an inhomogeneous universe and investigate their impacts on galaxy two-point...
Extending Recovery of the Primordial Matter Power Spectrum (2008)
Yoo, Jaiyul, Weinberg, David H., Tinker, Jeremy L., Zheng, Zheng, Warren, Michael S.
The shape of the primordial matter power spectrum Plin(k) encodes critical information on cosmological parameters. At large scales, the observable galaxy power spectrum Pobs(k) is expected to follow...
Improved estimation of cluster mass profiles from the cosmic microwave background (2008)
Yoo, Jaiyul, Zaldarriaga, Matias
We develop a new method for reconstructing cluster mass profiles and large-scale structure from the cosmic microwave background (CMB). By analyzing the likelihood of CMB lensing, we analytically...
The Most Massive Black Holes in the Universe: Effects of Mergers in Massive Galaxy Clusters (2007)
Yoo, Jaiyul, Miralda-Escude, Jordi, Weinberg, David H., Zheng, Zheng, Morgan, Christopher W.
Recent observations support the idea that nuclear black holes grew by gas accretion while shining as luminous quasars at high redshift, and they establish a relation of the black hole mass with the...
From galaxy clustering to dark matter clustering (2007)
Galaxy clustering measurement has been one of the leading tools in cosmology for estimating a more fundamental quantity, the clustering of the underlying dark matter distribution. With the recent...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Cosmological constraints from the SDSS Luminous Red Galaxies (2006)
Tegmark, Max, Eisenstein, Daniel, Strauss, Michael, Weinberg, David, Blanton, Michael, Frieman, Joshua, ...
Also archived in: arXiv:astro-ph/0608632 v2 Oct 30 2006
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
Cosmological constraints from the SDSS luminous red galaxies (2006)
Tegmark, Max, Eisenstein, Daniel J., Strauss, Michael A., Weinberg, David H., Blanton, Michael R., Frieman, Joshua A., ...
We measure the large-scale real-space power spectrum P(k) using luminous red galaxies (LRGs) in the Sloan Digital Sky Survey (SDSS) and use this measurement to sharpen constraints on cosmological...
From Galaxy-Galaxy Lensing to Cosmological Parameters (2005)
Yoo, Jaiyul, Tinker, Jeremy L., Weinberg, David H., Zheng, Zheng, Katz, Neal, Davé, Romeel
Galaxy-galaxy lensing measures the mean excess surface density DS(r) around a sample of lensing galaxies. We develop a method for combining DS(r) with the galaxy correlation function xi_gg(r) to...
Halo Structures of Gravitational Lens Galaxies (2005)
Yoo, Jaiyul, Kochanek, Christopher S., Falco, Emilio E., McLeod, Brian A.
We explore the halo structure of four gravitational lenses with well-observed, thin Einstein rings. We find that the gravitational potentials are well described by ellipsoidal density distributions...
The Lens Galaxy In PG1115+080 is an Ellipse (2005)
Yoo, Jaiyul, Kochanek, Christopher S., Falco, Emilio E., McLeod, Brian A.
We use the structure of the Einstein ring image of the quasar host galaxy in the four-image quasar lens PG1115+080 to determine the angular structure of the gravitational potential of the lens...
Formation of the Black Holes in the Highest Redshift Quasars (2004)
Yoo, Jaiyul, Miralda-Escude, Jordi
The recent discovery of luminous quasars up to a redshift z=6.43 has renewed interest in the formation of black holes massive enough to power quasars. If black holes grow by Eddington-limited gas...
Yoo, Jaiyul, DePoy, D. L., Gal-Yam, A., Gaudi, B. S., Gould, A., Han, C., ...
We develop a new method of modeling microlensing events based on a Monte Carlo simulation that incorporates both a Galactic model and the constraints imposed by the observed characteristics of the...
OGLE-2003-BLG-262: Finite-Source Effects from a Point-Mass Lens (2003)
Yoo, Jaiyul, DePoy, D. L., Gal-Yam, A., Gaudi, B. S., Gould, A., Han, C., ...
We analyze OGLE-2003-BLG-262, a relatively short, t_E=12.5+-0.1day, microlensing event generated by a point-mass lens transiting the face of a K giant source in the Galactic bulge. We use the...
The End of the MACHO Era: Limits on Halo Dark Matter from Stellar Halo Wide Binaries (2003)
Yoo, Jaiyul, Chaname, Julio, Gould, Andrew
We simulate the evolution of halo wide binaries in the presence of MAssive Compact Halo Objects (MACHOs) and compare our results to the sample of wide binaries of Chaname & Gould (2003). The observed...
From galaxy clustering to dark matter clustering
Galaxy clustering measurement has been one of the leading tools in cosmology for estimating a more fundamental quantity, the clustering of the underlying dark matter distribution. With the recent...