53 citations · 248 across the 14 of their papers we have counts for
14 papers
Isolating Sgr A East: The First Uncontaminated X-ray Maps of a Galactic Center Supernova Remnant
Mayura Balakrishnan, Adrien Picquenot, Lia Corales +3
The central few parsecs of the Milky Way host a complex X-ray-emitting environment in which several extended plasma components are blended along the line of sight, complicating att…
Candidate intermediate-mass black hole discovered in an extremely young low-metallicity cluster in the tadpole galaxy KUG 1138+327
Q. Daniel Wang, Juergen Ott
We explore what unusual products a starburst of about 6% solar metallicity and a mean estimated age of ~0.5 Myr can produce in KUG 1138 + 327 at a distance of 24.5 Mpc. Chandra X-r…
Overionized plasma in the supernova remnant Sagittarius A East anchored by XRISM observations
XRISM Collaboration
Sagittarius A East is a supernova remnant with a unique surrounding environment, as it is located in the immediate vicinity of the supermassive black hole at the Galactic center, S…
Multistructured accretion flow of Sgr A* II: Signatures of a Cool Accretion Disk in Hydrodynamic Simulations of Stellar Winds
Mayura Balakrishnan, Christopher M. P. Russell, Lia Corrales +8
Hydrodynamic simulations of the stellar winds from Wolf-Rayet stars within the Galactic Center can provide predictions for the X-ray spectrum of supermassive black hole Sgr A*. Her…
Multistructured accretion flow of Sgr A* I: Examination of a RIAF model
Mayura Balakrishnan, Lia Corrales, Sera Markoff +8
The extreme low-luminosity supermassive black hole Sgr A* provides a unique laboratory in which to test radiatively inefficient accretion flow (RIAF) models. Previous fits to the q…
Spectral Energy Distribution of the inner accretion flow around Sgr A* -- Clue for a weak outflow in the innermost region
Ren-Yi Ma, Shawn R. Roberts, Ya-Ping Li +1
Sgr A* represents a unique laboratory for the detailed study of accretion processes around a low-luminosity supermassive black hole (SMBH). Recent X-ray observations have allowed f…
Probing the dynamical state, baryon content, and multiphase nature of galaxy clusters with bright background QSOs
Chong Ge, Q. Daniel Wang, Joseph N. Burchett +5
We have initiated a programme to study the physical/dynamical state of gas in galaxy clusters and the impact of the cluster environment on gaseous halos of individual galaxies usin…
Modelling the thermal X-ray emission around the Galactic centre from colliding Wolf-Rayet winds
Christopher M. P. Russell, Q. Daniel Wang, Jorge Cuadra
The Galactic centre is a hotbed of astrophysical activity, with the injection of wind material from 30 massive Wolf-Rayet (WR) stars orbiting within 12" of the super-massive…
Modelling the thermal X-ray emission around the Galactic Centre from colliding Wolf-Rayet winds
Christopher M. P. Russell, Q. Daniel Wang, Jorge Cuadra
The Galactic Centre is a hotbed of astrophysical activity, with the injection of wind material from 30 massive Wolf-Rayet (WR) stars orbiting within 12 arcsec of the supermas…
Confronting the jet model of Sgr A* with the Faraday rotation measure observations
Ya-Ping Li, Feng Yuan, Q. Daniel Wang
Sgr A* is probably the supermassive black hole being investigated most extensively due to its proximity. Several theoretical models for its steady state emission have been proposed…
Detecting the warm-hot intergalactic medium through X-ray absorption lines
Yangsen Yao, J. Michael Shull, Q. Daniel Wang +1
The warm-hot intergalactic medium (WHIM) at temperatures 1E5-1E7 K is believed to contain 30-50% of the baryons in the local universe. However, all current X-ray detections of the…
Correction for the Flux Measurement Bias in X-ray Source Detection
Q. Daniel Wang
With a high spatial resolution imaging instrument such as the Chandra/ACIS, one can confidently identify an X-ray source with only a few detected counts. The detection threshold of…
Chandra observations of the bursting X-ray transient SAX J1747.0-2853 during low-level accretion activity
Rudy Wijnands, J. M. Miller, Q. Daniel Wang
We present Chandra/ACIS observations of the bursting X-ray transient SAX J1747.0-2853 performed on 18 July 2001. We detected a bright source at the position of R.A = 17^h 47^m 02.6…
X-Ray Detection of a Pre-Supernova Evolution for the SN 1993J Progenitor
Stefan Immler, Bernd Aschenbach, Q. Daniel Wang
We report on the first detection of a pre-supernova (SN) evolution in the X-ray regime. The results are based on ROSAT observations of SN 1993J ranging from six days to five years…