A5017728451- Gamma-ray bursts and supernovae
- Astrophysics and Cosmic Phenomena
- Astrophysical Phenomena and Observations
- Pulsars and Gravitational Waves Research
- Stellar, planetary, and galactic studies
- Radioactivity and Radon Measurements
- Radio Astronomy Observations and Technology
- Solar and Space Plasma Dynamics
- Radioactive Decay and Measurement Techniques
- Astronomy and Astrophysical Research
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Astronomical Observations and Instrumentation
- Astrophysics and Star Formation Studies
- Statistical and numerical algorithms
The University of Texas at Arlington
2013-2019
We have performed deep X-ray observations of the remnant Kepler's supernova (SN 1604) as a Key Project Suzaku Observatory. Our main goal is to detect secondary Fe-peak elements in (SN) ejecta gain insights into Type Ia SN explosion mechanism and nature progenitor. Here, we report our initial results. made conclusive detection emission lines from highly ionized Mn, Cr, Ni well Fe. The observed Mn-to-Cr line flux ratio ∼0.60, ∼30% larger than that measured Tycho's remnant. estimate an mass...
We report on the results from our measurements of interstellar medium (ISM) abundances for elements O, Ne, Mg, Si, and Fe in Large Magellanic Cloud (LMC). used archival Chandra data sixteen supernova remnants (SNRs) LMC (0453--68.5, DEM L71, N23, 0519--69.0, N49B, N132D, N49, N206, 0534--69.9, L238, N63A, Honeycomb, N157B, 0540--69.3, L316B, 0548--70.4). Our represent abundance based modern data. place tight constraints measured elemental find lower than previous by Hughes et al. (1998) (by...
We report on the initial results from our deep Chandra observation (450 ks) of O-rich supernova remnant (SNR) B0049–73.6 in Small Magellanic Cloud. detect small metal-rich ejecta features extending out to outermost boundary B0049–73.6, which were not seen previous data with a shorter exposure. The central nebula is dominated by emission reverse-shocked material enriched O, Ne, Mg, and Si. distribution relatively smooth throughout nebula. In contrast, Si-rich highly structured. These suggest...
G292.0+1.8 (G292) is a young ($\sim$3000 yr), Galactic textbook-type core-collapse supernova remnant (CCSNR). It characterized by X-ray, optical and infrared emission from ejecta circumstellar medium (CSM) features, contains pulsar (PSR J1124-5916) wind nebula that have been observed in X-rays radio. Previous studies revealed complex, dynamically evolving, oxygen-rich remnant, striking relic the explosion of massive star. Here, using our deep (530 ks) $\textit{Chandra}$ ACIS data, we present...