Kavli Affiliate: Bradford Benson | First 5 Authors: B. A. Benson, P. A. R. Ade, J. J. Bock, K. M. Ganga, C. N. Henson | Summary: We present new measurements of the Sunyaev-Zel’dovich (SZ) effect from clusters of galaxies using the Sunyaev-Zel’dovich Infrared Experiment (SuZIE II). We combine these new measurements with previous cluster observations […]
Kavli Affiliate: George W. Clark | First 5 Authors: George W. Clark, , , , | Summary: Properties of the X-ray halo of the eclipsing X-ray pulsar 4U 1538-52 are derived from a 25 ksec observation by the Chandra X-Ray Observatory. Profiles of the halo, compiled in two energy ranges, 2 to 4 keV and […]
Kavli Affiliate: Liantao Wang | First 5 Authors: Dan Hooper, Lian-Tao Wang, , , | Summary: Recently, the SPI spectrometer on the INTEGRAL satellite observed strong 511 keV line emission from the galactic bulge. Although the angular distribution (spherically symmetric with width of sim 9 degree) of this emission is difficult to account for with […]
Kavli Affiliate: John Carlstrom | First 5 Authors: J. E. Carlstrom, J. Kovac, E. M. Leitch, C. Pryke, | Summary: We review the current status and future plans for polarization measurements of the cosmic microwave background radiation, as well as the cosmology these measurements will address. After a long period of increasingly sensitive upper limits, […]
Kavli Affiliate: P. C. Joss | First 5 Authors: J. Madej, M. Pietrachowicz, P. C. Joss, A. Majczyna, A. Rozanska | Summary: We explore photometric properties of hypothetical iron core white dwarfs and compute their expected colors in UBVRI Johnson broadband system. Atmospheres of iron core WDs in this paper consist of pure iron covered […]
Kavli Affiliate: Michael Gladders | First 5 Authors: Michael D. Gladders, Henk Hoekstra, H. K. C. Yee, Patrick B. Hall, L. Felipe Barrientos | Summary: The incidence of giant arcs due to strong-lensing clusters of galaxies is known to be discrepant with current theoretical expectations. This result derives from a comparison of several cluster samples […]
Kavli Affiliate: Andrey V. Kravtsov | First 5 Authors: Andrey V. Kravtsov, , , , | Summary: One of the most puzzling properties of observed galaxies is the universality of the empirical correlation between the star formation rate and average gas surface density on kiloparsec scales (the Schmidt law). In this study I present results […]
Kavli Affiliate: Wayne Hu | First 5 Authors: Wayne Hu, , , , | Summary: Cluster number counts offer sensitive probes of the dark energy if and only if the_evolution_ of the cluster mass versus observable relation(s) is well calibrated. We investigate the potential for internal calibration by demanding consistency in the counts as a […]
Kavli Affiliate: Robert Rosner | First 5 Authors: Alexandros Alexakis, Yuan-Nan Young, Robert Rosner, , | Summary: We study the weakly non-linear development of shear-driven gravity waves, and investigate the mixing properties of the finite amplitude solutions. Calculations to date have been restricted to the linear theory, which predicts that gravity waves are amplified by […]
Kavli Affiliate: Wendy Freedman | First 5 Authors: Wendy L. Freedman, , , , | Summary: New, large, ground and space telescopes are contributing to an exciting and rapid period of growth in observational cosmology. The subject is now far from its earlier days of being data-starved and unconstrained, and new data are fueling a […]