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 […]
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 […]
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 […]
Kavli Affiliate: Peter Michelson | First 5 Authors: Roger W. Romani, David Sowards-Emmerd, Lincoln Greenhill, Peter Michelson, | Summary: We report the discovery of a radio-loud flat-spectrum QSO at z=5.47 with properties similar to those of the EGRET gamma-ray blazars. This source is the brightest radio QSO at z>5, with a pc-scale radio jet and […]
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 […]