Strong gravitational lensing probes of the particle nature of dark matter (2009)
Moustakas, Leonidas A., Abazajian, Kevork, Benson, Andrew, Bolton, Adam S., Bullock, James S., Chen, Jacqueline, ...
There is a vast menagerie of plausible candidates for the constituents of dark matter, both within and beyond extensions of the Standard Model of particle physics. Each of these candidates may have...
Wei-keng Liao, Avery Ching, Kenin Coloma, Arifa Nisar, Alok Choudhary, Jacqueline Chen
Typical large-scale scientific applications periodically write checkpoint files to save the computational state throughout execution. Existing parallel file systems improve such write-only I/O...
Parity Dependence in Strong Lens Systems as a Probe of Dark Matter Substructure (2008)
The amount of mass in small, dark matter clumps within galaxies (substructure) is an important test of cold dark matter. One approach to measuring the substructure mass fraction is to analyze the...
(A related paper has been accepted for publication in NeuroImage) (2008)
Stephen M. Smith, Yongyue Zhang, Mark Jenkinson, Jacqueline Chen, P. M. Matthews, Antonio Federico, ...
Correspondce to S. Smith
The spatial distribution of satellite galaxies around host galaxies can illuminate the relationship between satellites and dark matter subhalos and aid in developing and testing galaxy formation...
Stephen M. Smith, Yongyue Zhang, Mark Jenkinson, Jacqueline Chen, Antonio Federico, Nicola De Stefano
Quantitative measurement of brain size, shape and temporal change (for example, in order to estimate atrophy) is increasingly important in biomedical image analysis applications. New methods of...
Color Dependence in the Spatial Distribution of Satellite Galaxies (2007)
We explore the color dependence of the radial profile of satellite galaxies around isolated parent galaxies. Samples of potential satellites selected from large galaxy redshift surveys are...
Biases in the Gravitational Lens Population Induced by Halo and Galaxy Triaxiality (2007)
Rozo, Eduardo, Chen, Jacqueline, Zentner, Andrew R.
The lensing cross section of triaxial halos depends on the relative orientation between a halo's principal axes and its line of sight. Consequently, a lensing subsample of randomly oriented halos is...
Astrometric Perturbations in Substructure Lensing (2006)
Chen, Jacqueline, Rozo, Eduardo, Dalal, Neal, Taylor, James E.
In recent years, gravitational lensing has been used as a means to detect substructure in galaxy-sized halos, via anomalous flux ratios in quadruply-imaged lenses. In addition to causing anomalous...
Thesis (Ph. D.)--University of Chicago, Dept. of Astronomy & Astrophysics, December 2006.
Chen, Jacqueline, Kravtsov, Andrey V., Prada, Francisco, Sheldon, Erin S., Klypin, Anatoly A., Blanton, Michael R., ...
We use the Sloan Digital Sky Survey (SDSS) spectroscopic sample to constrain the projected radial distribution of satellites around isolated ~ L* galaxies. We employ mock galaxy catalogs derived from...
Using bitmap index for interactive exploration of large datasets (2003)
Wu, Kesheng, Koegler, Wendy, Chen, Jacqueline, Shoshani, Arie
Many scientific applications generate large spatio-temporal datasets. A common way of exploring these datasets is to identify and track regions of interest. Usually these regions are defined as...
Lensing Optical Depth for Substructure and Isolated Dark Matter Halos (2003)
Chen, Jacqueline, Kravtsov, Andrey V., Keeton, Charles R.
Multiply-imaged quasar lenses can be used to constrain the substructure mass fraction in galaxy-sized dark matter halos via anomalous flux ratios in lensed images. The flux ratios, however, can be...
Using Bitmap Index for Interactive Exploration of Large Datasets (2003)
Kesheng Wu, Wendy Koegler, Jacqueline Chen, Arie Shoshani
Many scientific applications generate large spatiotemporal datasets. A common way of exploring these datasets is to identify and track regions of interest. Usually these regions are defined as...
Distorted HI Gas in the Widely Separated LIRG Arp 256 (2001)
Chen, Jacqueline, Lo, K. Y., Gruendl, Robert A., Peng, Miao-Ling, Gao, Yu
We present new interferometric HI and CO (1-0) observations of the luminous infrared source, Arp 256. Arp 256 consists of two spiral galaxies in an early stage of merging, with a projected nuclear...
Topology of Three-Dimensional, Variable Density Flows, (1998)
Cantwel, Brian, Lewis, Gregory, Chen, Jacqueline
This paper is concerned with the interpretation of unsteady, variable - density flow fields. The topology of the flow is determined by finding critical points and identifying the character of local...
GPS antenna system /--by Jacqueline Chen. (1996)
Thesis (B.E.(Hons))--University of Queensland, 1996.