222 citations · 1.6k across the 54 of their papers we have counts for
11 papers · 2 filters
Massive Star Formation Near Sgr A* and Bimodal Star Formation in the Nuclear Disk
F. Yusef-Zadeh, M. Wardle
The history of star formation in the strong gravitational potential of the Galactic center has been of much interest, recently. We propose that the sub-parsec-scale disk of massive…
Simultaneous Chandra, CSO and VLA Observations of Sgr A*: The Nature of Flaring Activity
F. Yusef-Zadeh, M. Wardle, C. Heinke +4
Sgr A*, the massive black hole at the center of the Galaxy, varies in radio through X-ray emission on hourly time scales. The flare activity is thought to arise from the innermost…
The Variability of Polarized Radiation from Sgr A*
F. Yusef-Zadeh, M. Wardle, W. D. Cotton +2
Sgr A* is variable at radio and submillimeter wavelengths on hourly time scales showing time delays between the peaks of flare emission as well as linearly polarized emission at mi…
ATCA 1.2 cm Observations of the Massive Star Forming Region G305.2+0.2
Andrew J. Walsh, Jacqueline F. Chapman, Michael G. Burton +2
We report on Australia Telescope observations of the massive star forming region G305.2+0.2 at 1.2 cm. We detected emission in five molecules towards G305A, confirming its hot core…
Cosmic-Ray Heating of Molecular Gas in the Nuclear Disk: Low Star Formation Efficiency
F. Yusef-Zadeh, M. Wardle, S. Roy
Understanding the processes occurring in the nuclear disk of our Galaxy is interesting in its own right, as part of the Milky Way Galaxy, but also because it is the closest galacti…
Hall magnetohydrodynamics of partially ionized plasmas
B. P. Pandey, Mark Wardle
The Hall effect arises in a plasma when electrons are able to drift with the magnetic field but ions cannot. In a fully-ionized plasma this occurs for frequencies between the ion a…