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A Measurement of the Rate of type-Ia Supernovae at Redshift 0.1 from the First Season of the SDSS-II Supernova Survey
Benjamin Dilday, R. Kessler, J. A. Frieman +50
We present a measurement of the rate of type Ia supernovae (SNe Ia) from the first of three seasons of data from the SDSS-II Supernova Survey. For this measurement, we include 17 S…
The X-ray synchrotron emission of RCW 86 and the implications for its age
Jacco Vink, Johan Bleeker, Kurt van der Heyden +3
We report here X-ray imaging spectroscopy observations of the northeastern shell of the supernova remnant RCW 86 with Chandra and XMM-Newton. Along this part of the shell the domin…
High-Resolution X-ray imaging and spectroscopy of SNR N103B
K. J. van der Heyden, E. Behar, J. Vink +5
The X-ray emission from the young supernova remnant (SNR) N103B is measured and analysed using the high-resolution cameras and spectrometers on board XMMM and CHANDRA. The spectrum…
X-ray spectral imaging and Doppler mapping of Cassiopeia A
R. Willingale, J. A. M. Bleeker, K. J. van der Heyden +2
A detailed X-ray spectral analysis of Cas A using a deep exposure from the EPIC-MOS cameras on-board XMM-Newton is presented. Spectral fitting was performed on a 15x15 grid of 20"x…
Detection of X-ray line emission from the shell of SNR B0540-69.3 with XMM-Newton RGS
K. J. van der Heyden, F. Paerels, J. Cottam +2
We present X-ray observations of PSR 0540-69.3 with the XMM-Newton observatory. The spectra obtained with the Reflection Grating Spectrometer reveal, for the first time, emission f…
Cassiopeia A: on the origin of the hard X-ray continuum and the implication of the observed O VIII Ly-alpha/Ly-beta distribution
J. A. M. Bleeker, R. Willingale, K. van der Heyden +4
We present the first results on the hard X-ray continuum image (up to 15 keV) of the supernova remnant Cas A measured with the EPIC cameras onboard XMM-Newton. The data indicate th…
Multiwaveband studies of the hard ROSAT SMC transient 1WGA J0053.8-7226: a new X-ray pulsar
D. A. H. Buckley, M. J. Coe, J. B. Stephens +4
We report on two optical candidates for the counterpart to an X-ray source in the SMC, 1WGA J0053.8-7226, identified as a serendipitous X-ray source from the ROSAT PSPC archive, an…