======================================================================== 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. 13, No. 16 Jul 11, 2001 Recently submitted papers: -------------------------- 1) On the Formation of Degenerate Heavy Neutrino Stars (Bilic et al., Phys. Lett. B) 2) Supernova OH (1720 MHz) Masers in Sgr A East, W28 and G359.1-0.5 (Yusef-Zadeh et al., IAU Symp.) ------------------------------------------------------------------------ Email : lindebaumr@nu.ac.za Title : On the Formation of Degenerate Heavy Neutrino Stars Author(s): Neven Bili, Robert J. Lindebaum, Gary B. Tupper, Raoul D. Viollier Institute: Institute of Theoretical Physics and Astrophysics, Department of Physics, University of Cape Town, Private Bag, Rondebosch 7701, South Africa Paper : Phys. Lett. B, in press EPrint : astro-ph/0106209 Abstract: The dynamics of a self-gravitating cold Fermi gas is described using the analogy with an interacting self-gravitating Bose condensate having the same Thomas-Fermi limit. The dissipationless formation of a heavy neutrino star through gravitational collapse and ejection of matter is demonstrated numerically. Such neutrino stars offer an alternative to black holes for the supermassive compact dark objects at the centers of galaxies. ------------------------------------------------------------------------ Email : zadeh@oort.astro.nwu.edu Title : Supernova OH (1720 MHz) Masers in Sgr A East, W28 and G359.1-0.5 Author(s): F. Yusef-Zadeh, D.A. Roberts, G. Bower, and M. Wardle Paper : IAU Symp. 206: Cosmic Masers, in press EPrint : astro-ph/0107109 Abstract: A new class of OH (1720 MHz) masers unaccompanied by main-line transitions have recently been discovered (Frail, Goss and Slysh 1994). These masers lie at the interface between supernova remnants (SNRs) interacting with molecular clouds. We discuss three new aspects of SN masers found in the direction toward the Galactic center: (i) the detection of a new - 130 km/s OH (1720 MHz) maser in the southern lobe of the molecular ring at the Galactic center, (ii) the detection of extended OH (1720 MHz) maser emission from W28 accompanying the compact maser sources and (iii) the detection of linear polarization of the brightest OH (1720 MHz) maser in SNR G359.1-0.5. ------------------------------------------------------------------------ (Older versions of the Newsflash can be found at the gcnews web-page) ======================================================================== Edited by Angela Cotera Heino Falcke & Sera Markoff (cotera@as.arizona.edu) (hfalcke,smarkoff@mpifr-bonn.mpg.de) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - For Abstract submission please send the (La)Tex file of your paper to gcnews@mpifr-bonn.mpg.de ========================================================================