Kavli Affiliate: David Huenemoerder | First 5 Authors: Paola Testa, David Garcia-Alvarez, Fabio Reale, David Huenemoerder, | Summary: We analyze a Chandra-HETGS observation of the single G-type giant HR 9024. The high flux allows us to examine spectral line and continuum diagnostics at high temporal resolution, to derive plasma parameters (thermal distribution, abundances, temperature, …). […]
Kavli Affiliate: Claude Canizares | First 5 Authors: Taotao Fang, Christopher McKee, Claude Canizares, Mark Wolfire, | Summary: Recent Chandra and XMM observations of distant quasars have shown strong local (z~0) X-ray absorption lines from highly ionized gas, primarily He-like oxygen. The nature of these X-ray absorbers, i.e., whether they are part of the hot […]
Kavli Affiliate: Robert A. Cameron | First 5 Authors: Martin C. Weisskopf, Thomas L. Aldcroft, Robert A. Cameron, Poshak Gandhi, Cédric Foellmi | Summary: Before the official first-light images, the Chandra X-Ray Observatory obtained an X-ray image of the field to which its focal plane was first exposed. We describe this historic observation and report […]
Kavli Affiliate: George M. Whitesides | First 5 Authors: Eric Lauga, Willow R. DiLuzio, George M. Whitesides, Howard A. Stone, | Summary: Near a solid boundary, E. coli swims in clockwise circular motion. We provide a hydrodynamic model for this behavior. We show that circular trajectories are natural consequences of force-free and torque-free swimming, and […]
Kavli Affiliate: Peter G. Ford | First 5 Authors: Anil Bhardwaj, Ronald F. Elsner, J. Hunter Waite, Jr., G. Randall Gladstone, Thomas E. Cravens | Summary: Using the Advanced CCD Imaging Spectrometer (ACIS), the Chandra X-ray Observatory (CXO) observed the Saturnian system for one rotation of the planet (~37 ks) on 20 January, 2004, and […]
Kavli Affiliate: Keith Schwab | First 5 Authors: Salman Habib, Tanmoy Bhattacharya, Andrew Doherty, Benjamin Greenbaum, Asa Hopkins | Summary: The vast majority of the literature dealing with quantum dynamics is concerned with linear evolution of the wave function or the density matrix. A complete dynamical description requires a full understanding of the evolution of […]
Kavli Affiliate: Keith Schwab | First 5 Authors: Salman Habib, Tanmoy Bhattacharya, Andrew Doherty, Benjamin Greenbaum, Asa Hopkins | Summary: The vast majority of the literature dealing with quantum dynamics is concerned with linear evolution of the wave function or the density matrix. A complete dynamical description requires a full understanding of the evolution of […]
Kavli Affiliate: Peter G. Ford | First 5 Authors: Anil Bhardwaj, Ronald F. Elsner, J. Hunter Waite Jr, G. Randall Gladstone, Thomas E. Cravens | Summary: Saturn was observed by Chandra ACIS-S on 20 and 26-27 January 2004 for one full Saturn rotation (10.7 hr) at each epoch. We report here the first observation of […]