======================================================================== G C N E W S * Newsflash * - The Newsletter for Galactic Center Research - gcnews@mpifr-bonn.mpg.de http://www.mpifr-bonn.mpg.de/gcnews ======================================================================== Vol. 10, No. 20 Oct 18, 1999 Recently submitted papers: -------------------------- Email : acoil@pavo.Berkeley.EDU Title : The Dynamics of Molecular Material Within 15 Parsecs of the Galactic Center Author(s): Alison L. Coil (1), Paul T.P. Ho(2) Institute: (1) Astronomy Department, University of California at Berkeley, Berkeley, CA 94720, e-mail: acoil@astro.berkeley.edu; (2) Harvard-Smithsonian Center for Astrophysics, 60 Garden St. MS-78, Cambridge, MA 02138, e-mail: pho@cfa.harvard.edu, Paper : to appear in ApJ Eprint : astro-ph/9910043 Abstract: We report the results of a 5-field mosaic of the central 15pc of the Galaxy in the (1,1) and (2,2) lines of NH_3. Two narrow filaments or streamers are seen running parallel to the Galactic plane. The southern streamer appears to carry gas directly toward the nuclear region from the 20 km/sec cloud. The eastern streamer, which we will denote the molecular ridge, appears to be the denser part of the 50 km/sec cloud which lies immediately east of the Sgr A East complex and extends in the south towards the 20 km/sec cloud. This ridge of gas carries the kinematical signatures of interactions with Sgr A East as well as a SNR which lies south of the Galactic center. The bulk motion of the gas, the enhanced line widths, and the heating of the molecular material all suggest an active evolutionary phase for the gas immediately adjacent to the nucleus. ------------------------------------------------------------------------ (Older versions of the Newsflash can be found at the gcnews web-page) ======================================================================== Edited by Angela Cotera Heino Falcke (cotera@ipac.caltech.edu) (hfalcke@mpifr-bonn.mpg.de) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - For Abstract submission please send the (La)Tex file of your paper to gcnews@mpifr-bonn.mpg.de ========================================================================