activity
20002024
most citedDissecting X-ray-emitting Gas around the Center of our Galaxy

304 citations · 1.6k across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.HE2024★ 2 cited

The Chandra Source Catalog Release 2 Series

Ian N. Evans, Janet D. Evans, J. Rafael Martínez-Galarza +17

The Chandra Source Catalog (CSC) is a virtual X-ray astrophysics facility that enables both detailed individual source studies and statistical studies of large samples of X-ray sou…

astro-ph.HE2014★ 95 cited

On the Expansion Rate, Age, and Distance of the Supernova Remnant G266.2-1.2 (Vela Jr.)

G. E. Allen, K. Chow, T. DeLaney +4

An analysis of Chandra ACIS data for two relatively bright and narrow portions of the northwestern rim of G266.2-1.2 (a.k.a. RX J0852.0-4622 or Vela Jr.) reveal evidence of a radia…

astro-ph.HE2013★ 304 cited

Dissecting X-ray-emitting Gas around the Center of our Galaxy

Q. D. Wang, M. A. Nowak, S. B. Markoff +16

Most supermassive black holes (SMBHs) are accreting at very low levels and are difficult to distinguish from the galaxy centers where they reside. Our own Galaxy's SMBH provides a…

astro-ph.HE2013★ 187 cited

A Chandra/HETGS Census of X-ray Variability From Sgr A* During 2012

J. Neilsen, M. A. Nowak, C. Gammie +13

We present the first systematic analysis of the X-ray variability of Sgr A* during the Chandra X-ray Observatory's 2012 Sgr A* X-ray Visionary Project (XVP). With 38 High Energy Tr…

astro-ph.HE2012★ 158 cited

Chandra-HETGS Observations of the Brightest Flare Seen from Sgr A*

M. A. Nowak, J. Neilsen, S. B. Markoff +10

Starting in 2012, we began an unprecedented observational program focused on the supermassive black hole in the center of our Galaxy, Sgr A*, utilizing the High Energy Transmission…

astro-ph.GA2010★ 165 cited

The Three-Dimensional Structure of Cassiopeia A

Tracey DeLaney, Lawrence Rudnick, M. D. Stage +9

We used the Spitzer Space Telescope's Infrared Spectrograph to map nearly the entire extent of Cassiopeia A between 5-40 micron. Using infrared and Chandra X-ray Doppler velocity m…

astro-ph2006★ 199 cited

X-ray Supercavities in the Hydra A Cluster and the Outburst History of the Central Galaxy's Active Nucleus

M. W. Wise, B. R. McNamara, P. E. J. Nulsen +2

A 227 ksec Chandra Observatory X-ray image of the hot plasma in the Hydra A cluster has revealed an extensive cavity system. The system was created by a continuous outflow or a ser…

astro-ph2003★ 69 cited

Chandra High-Resolution X-Ray Spectrum of Supernova Remnant 1E0102.2-7219

K. A. Flanagan, C. R. Canizares, D. Dewey +5

Chandra High Energy Transmission Grating Spectrometer observations of the supernova remnant 1E0102.2-7219 in the Small Magellanic Cloud reveal a spectrum dominated by X-ray emissio…

astro-ph2001★ 227 cited

Discovery of Ghost Cavities in Abell 2597's X-ray Atmosphere

B. R. McNamara, M. W. Wise, P. E. J. Nulsen +10

A Chandra image of the central 100 kpc of the Abell 2597 cluster of galaxies shows bright, irregular, X-ray emission within the central dominant cluster galaxy (CDG), and two low s…

astro-ph2001

Ionization Structure and the Reverse Shock in E0102-72

K. A. Flanagan, C. R. Canizares, D. S. Davis +3

The young oxygen-rich supernova remnant E0102-72 in the Small Magellanic Cloud has been observed with the High Energy Transmission Grating Spectrometer of Chandra. The high resolut…

astro-ph2001

Spectral Line Imaging Observations of 1E0102.2-7219

D. S. Davis, K. A. Flanagan, J. C. Houck +5

E0102-72 is the second brightest X-ray source in the Small Magellanic Cloud and the brightest supernova remnant in the SMC. We observed this SNR for ~140 ksec with the High Energy…

astro-ph2000★ 176 cited

High Resolution X-Ray Spectra of Capella: Initial Results from the Chandra High Energy Transmission Grating Spectrometer

C. R. Canizares, D. P. Huenemoerder, D. S. Davis +10

High resolution spectra of the active binary Capella (G8 III + G1 III) covering the energy range 0.4-8.0 keV (1.5-30 Angstroms) show a large number of emission lines, demonstrating…