100 citations · 2.6k across the 74 of their papers we have counts for
74 papers
Testing CDM with eBOSS data using a model independent diagnostic
Arman Shafieloo, Sangwoo Park, Varun Sahni +1
The diagnostic (Shafieloo et al. 2012) tests the consistency of the cosmological constant as a candidate for dark energy using Baryon Acoustic Oscillation (BAO) data. An impo…
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…
A Spectroscopic Study of Supernova Remnants with the Infrared Space Observatory
Matthew J. Millard, Aravind P. Ravi, Jeonghee Rho +1
We present far-infrared (FIR) spectroscopy of supernova remnants (SNRs) based on the archival data of the Infrared Space Observatory () taken with the Long Wavelength Spectrom…
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…
Radiative Supernova Remnants and Supernova Feedback
Bon-Chul Koo, Chang-Goo Kim, Sangwook Park +1
Supernova (SN) explosions are a major feedback mechanism regulating star formation in galaxies through their momentum input. We review the observations of SNRs in radiative stages…