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The 3-D X-ray Ejecta Structure of Tycho's Supernova Remnant
Matthew J. Millard, Sangwook Park, Toshiki Sato +5
We present our velocity measurements of 59 clumpy, metal-rich ejecta knots in the supernova remnant (SNR) of SN 1572 (Tycho). We use our 450 ks Chandra High Energy Transmission Gra…
Spectral Evolution of the X-Ray Remnant of SN 1987A: A High-Resolution HETG Study
Aravind P. Ravi, Sangwook Park, Svetozar A. Zhekov +4
Based on observations with the X-ray Observatory, we present the latest spectral evolution of the X-ray remnant of SN 1987A (SNR 1987A). We present a high-resolution spec…
High-cadence Dispersed Spectral Analysis of Supernova Remnant 1987A
Evan Bray, David N. Burrows, Sangwook Park +1
We present an analysis of the dispersed spectral data from 11 epochs (March 2011 to September 2018) of supernova remnant (SNR) 1987A observations performed with Chandra. These obse…
Element Stratification in the Middle-Aged Type Ia Supernova Remnant G344.7-0.1
Kotaro Fukushima, Hiroya Yamaguchi, Patrick O. Slane +7
Despite their importance, a detailed understanding of Type Ia supernovae (SNe Ia) remains elusive. X-ray measurements of the element distributions in supernova remnants (SNRs) offe…
NuSTAR Detection of Quiescent Hard X-Ray Emission from SGR 0526-66 in the Large Magellanic Cloud
Sangwook Park, Jayant Bhalerao, Oleg Kargaltsev +1
The soft gamma-ray repeater (SGR) 0526-66 is the first-identified magnetar, and is projected within the supernova remnant N49 in the Large Magellanic Cloud. Based on our ~50 ks NuS…
High angular resolution ALMA images of dust and molecules in the SN 1987A ejecta
Phil Cigan, Mikako Matsuura, Haley L. Gomez +23
We present high angular resolution (~80 mas) ALMA continuum images of the SN 1987A system, together with CO =2 1, =6 5, and SiO =5 $\!\…