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Flickering of 1.3 cm Sources in Sgr B2: Towards a Solution to the Ultracompact HII Region Lifetime Problem
C. G. De Pree, T. Peters, M. -M. Mac Low +6
Accretion flows onto massive stars must transfer mass so quickly that they are themselves gravitationally unstable, forming dense clumps and filaments. These density perturbations…
Nonthermal Filamentary Radio Features Within 20 pc of the Galactic Center
Mark Morris, Jun-Hui Zhao, W. M. Goss
Deep imaging of the Sgr A complex at 6 cm wavelength with the B and C configurations of the Karl G. Jansky VLA has revealed a new population of faint radio filaments. Like their br…
A New Perspective on the Radio Active Zone at The Galactic Center - Feedback from Nuclear Activities
Jun-Hui Zhao, Mark R. Morris, W. M. Goss
Based on our deep image of Sgr A using broadband data observed with the Jansky VLA at 6 cm, we present a new perspective of the radio bright zone at the Galactic center. We further…
OH Maser Sources in W49N: Probing Magnetic Field and Differential Anisotropic Scattering with Zeeman pairs using the VLBA
Avinash A. Deshpande, W. M. Goss, J. E. Mendoza-Torres
Our analysis of a VLBA 12-hour synthesis observation of the OH masers in a well-known star-forming region W49N has yielded valuable data that enables us to probe distributions of m…
OH (1720 MHz) Masers: A Multiwavelength Study of the Interaction between the W51C Supernova Remnant and the W51B Star Forming Region
C. L. Brogan, W. M. Goss, T. R. Hunter +6
We present a comprehensive view of the W51B HII region complex and the W51C supernova remnant (SNR) using new radio observations from the VLA, VLBA, MERLIN, JCMT, and CSO along wit…