30 citations · 30 across the 9 of their papers we have counts for
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Observational Tests of Sgr A*'s State of the Accretion Flow
F. Yusef-Zadeh, R. G. Arendt, H. Bushouse +4
General relativistic magneto-hydrodynamic (GRMHD) simulations of the possibly magnetically arrested disk (MAD) of the accretion flow of Sgr A* predict short and long time variabili…
A Catalog of Filaments in the Central Molecular Zone
Richard G. Arendt, F. Yusef-Zadeh, I. Heywood
We present a catalog of 1.28 GHz radio filaments observed by MeerKAT over the innermost 200 pc of the Galaxy (roughly ), which includes the central molecular zone (CMZ).…
Non-stop Variability of Sgr A* using JWST at 2.1 and 4.8 micron Wavelengths: Evidence for Distinct Populations of Faint and Bright Variable Emission
F. Yusef-Zadeh, H. Bushouse, R. G. Arendt +3
We present first results of JWST Cycle 1 and 2 observations of Sgr A* using NIRCam taken simultaneously at 2.1 and 4.8 micron for a total of ~48 hours over seven different epochs i…
Shockingly Bright Warm Carbon Monoxide Molecular Features in the Supernova Remnant Cassiopeia A Revealed by JWST
J. Rho, S. -H. Park, R. Arendt +36
We present JWST NIRCam (F356W and F444W filters) and MIRI (F770W) images and NIRSpec- IFU spectroscopy of the young supernova remnant Cassiopeia A (Cas A). We obtained the data as…
The interaction of a large-scale nuclear wind with the high velocity HII region G0.17+0.15
F. Yusef-Zadeh, Jun-Hui Zhao, R. Arendt +4
We investigate the nature of a Galactic center source, G0.17+0.15, lying along the northern extension of the Radio Arc near l~0.2deg. G0.17+0.15 is an HII region located toward the…
Massive Star Formation of the Sgr A East HII Regions Near the Galactic Center
F. Yusef-Zadeh, J. H. Lacy, M. Wardle +4
A group of four compact HII regions associated with the well-known 50 km/s molecular cloud is the closest site of on-going star formation to the dynamical center of the Galaxy, at…