360 citations · 1.3k across the 29 of their papers we have counts for
29 papers
X-ray ejecta kinematics of the Galactic core-collapse supernova remnant G292.0+1.8
Jayant Bhalerao, Sangwook Park, Daniel Dewey +3
We report on the results from the analysis of our 114 ks Chandra HETGS observation of the Galactic core-collapse supernova remnant G292.0+1.8. To probe the 3D structure of the clum…
A Decade-Baseline Study of the Plasma States of Ejecta Knots in Cassiopeia A
John Rutherford, Daniel Dewey, Enectali Figueroa-Feliciano +4
We present the analysis of 21 bright X-ray knots in the Cassiopeia A supernova remnant from observations spanning 10 yr. We performed a comprehensive set of measurements to reveal…
SN 1987A at High Resolution
Daniel Dewey
Handed the baton from ROSAT, early observations of SN 1987A with the Chandra HETG and the XMM-Newton RGS showed broad lines with a FWHM of 10^4 km/s: the SN blast wave was continui…
Supernova Remnant Evolution in Wind Bubbles: A Closer Look at Kes 27
Vikram V. Dwarkadas, Dan Dewey
Massive Stars (> 8 solar masses) lose mass in the form of strong winds. These winds accumulate around the star, forming wind-blown bubbles. When the star explodes as a supernova (S…
Evolution and Hydrodynamics of the Very-Broad X-ray Line Emission in SN 1987A
D. Dewey, V. V. Dwarkadas, F. Haberl +2
Observations of SN 1987A by the Chandra High Energy Transmission Grating (HETG) in 1999 and the XMM-Newton Reflection Grating Spectrometer (RGS) in 2003 show very broad (v-b) lines…
A New Evolutionary Phase of Supernova Remnant 1987A
Sangwook Park, Svetozar A. Zhekov, David N. Burrows +3
We have been monitoring the supernova remnant (SNR) 1987A with {\it Chandra} observations since 1999. Here we report on the latest change in the soft X-ray light curve of SNR 1987A…