Discovery of Oxygen Kalpha X-ray Emission from the Rings of Saturn

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 […]


Continue.. Discovery of Oxygen Kalpha X-ray Emission from the Rings of Saturn

Nonlinear Quantum Dynamics

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 […]


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Nonlinear Quantum Dynamics

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 […]


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Chandra Observation of an X-ray Flare at Saturn: Evidence for Direct Solar Control on Saturn’s Disk X-ray Emissions

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 […]


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Model atmospheres and X-ray spectra of iron-rich bursting neutron stars. II. Iron rich Comptonized Spectra

Kavli Affiliate: P. C. Joss | First 5 Authors: A. Majczyna, J. Madej, P. C. Joss, A. Rozanska, | Summary: This paper presents the set of plane-parallel model atmosphere equations for a very hot neutron star (X-ray burst source). The model equations assume both hydrostatic and radiative equilibrium, and the equation of state of an […]


Continue.. Model atmospheres and X-ray spectra of iron-rich bursting neutron stars. II. Iron rich Comptonized Spectra

NLTE Model Atmosphere Analysis of the LMC Supersoft X-ray Source CAL 83

Kavli Affiliate: Andrew P. Rasmussen | First 5 Authors: Thierry Lanz, Gisela A. Telis, Marc Audard, Frits Paerels, Andrew P. Rasmussen | Summary: We present a non-LTE model atmosphere analysis of Chandra HRC-S/LETG and XMM-Newton RGS spectroscopy of the prototypical supersoft source CAL 83 in the Large Magellanic Cloud. Taken with a 16-month interval, the […]


Continue.. NLTE Model Atmosphere Analysis of the LMC Supersoft X-ray Source CAL 83

NLTE Model Atmosphere Analysis of the LMC Supersoft X-ray Source CAL 83

Kavli Affiliate: Andrew P. Rasmussen | First 5 Authors: Thierry Lanz, Gisela A. Telis, Marc Audard, Frits Paerels, Andrew P. Rasmussen | Summary: We present a non-LTE model atmosphere analysis of Chandra HRC-S/LETG and XMM-Newton RGS spectroscopy of the prototypical supersoft source CAL 83 in the Large Magellanic Cloud. Taken with a 16-month interval, the […]


Continue.. NLTE Model Atmosphere Analysis of the LMC Supersoft X-ray Source CAL 83

Chandra Observations and Monte Carlo Simulations of the Grain-Scattered Halo of the Binary X-Ray Pulsar 4U 1538-52

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 […]


Continue.. Chandra Observations and Monte Carlo Simulations of the Grain-Scattered Halo of the Binary X-Ray Pulsar 4U 1538-52