567 citations · 3.5k across the 87 of their papers we have counts for
5 papers · 1 filter
Front-row seat of the recent R Aqr periastron passage: X-ray multi-epoch spectral and spatial analysis
A. Sacchi, M. Karovska, J. Raymond +7
We report on the X-ray spectral and spatial evolution of the Symbiotic star R Aqr. Through a multi-epoch observational campaign performed with Chandra between 2017 and 2022, we stu…
Breakthroughs in Cool Star Physics with the Line Emission Mapper X-ray Probe
Jeremy J. Drake, Julián Alvarado Gomez, Costanza Argiroffi +10
We outline some of the highlights of the scientific case for the advancement of stellar high energy physics using the Line Emission Mapper X-ray Probe ({\it LEM}). The key to advan…
A novel approach to detect line emission under high background in high-resolution X-ray spectra
Xiangyu Zhang, Sara Algeri, Vinay Kashyap +1
We develop a novel statistical approach to identify emission features or set upper limits in high-resolution spectra in the presence of high background. The method relies on detect…
Discovery of kiloparsec-scale semi-relativistic Fe K complex emission in NGC 5728
Anna Trindade Falcao, G. Fabbiano, M. Elvis +3
We present Chandra ACIS-S imaging spectroscopy results of the extended (1.5''- 8'', 300 pc-1600 pc) hard X-ray emission of NGC 5728, the host galaxy of a Compton thick active galac…
Shocks and Photoionization of the Inner 650 AU Jet of the Interacting Binary Star R Aquarii from Multiwavelength Hubble Space Telescope Observations
Caroline D. Huang, Margarita Karovska, Warren Hack +3
Astrophysical jets are present in a range of environments, including young stellar objects, X-ray binaries, and active galactic nuclei, but their formation is still not fully under…