Abstracts - GCNEWS, Vol. 8, August 1998

GCNEWS

A Newsletter for Galactic Center Research
This Volume was edited by Angela Cotera & Heino Falcke
email: gcnews@aoc.nrao.edu



Volume 8, August 1998 - ABSTRACTS

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  1. ``TGRS MEASUREMENTS OF THE POSITRON ANNIHILATION SPECTRUM, FROM THE GALACTIC CENTER''
    M. J. HARRIS, B. J. TEEGARDEN, T. L. CLINE, N. GEHRELS, D. M. PALMER, R. RAMATY, AND H. SEIFERT (
    HARRIS@tgrs2.gsfc.nasa.gov)
    Paper: ApJ, in press [Abstract, Tex, EPrint-Server] (Wed Mar 25 14:41:03 MET 1998)

  2. ``Radio Continuum Structure of IRS 13 and Proper Motions of Compact HII Components at the Galactic Center,''
    Jun-Hui Zhao, & W. M. Goss (
    jzhao@cfa.harvard.edu)
    Paper: ApJL 1998 in press [Abstract, Tex] (Fri Apr 3 22:23:06 MET DST 1998)

  3. `` MILKY WAY GALAXY MAY BE SMALLER THAN WE THOUGHT''
    press release (
    mm@astro.soton.ac.uk)
    Paper: UK National Astronomy Meeting [Abstract, Tex, Paper] (Fri Apr 3 22:37:06 MET DST 1998)

  4. ``A kiloparsec-scale polarized plume associated with the Galactic Centre''
    A.R. Duncan(1), R.F. Haynes(2), W. Reich(3), P. Reich(3), & A.D. Gray(4) (
    p098wre@mpifr-bonn.mpg.de)
    Paper: MNRAS, in press [Abstract, Tex, Paper] (Thu Apr 16 16:42:29 MET DST 1998)

  5. ``Dark matter concentration in the galactic center''
    David Tsiklauri and Raoul D. Viollier (
    TSIKLAURI@physci.uct.ac.za)
    Paper: ApJ, Vol. 500, June 20 [Abstract, Tex] (Fri Apr 17 09:53:47 MET DST 1998)

  6. ``Hyperstrong Radio-Wave Scattering in the Galactic Center. I., A Survey for Extragalactic Sources Seen Through, the Galactic Center''
    T. Joseph W. Lazio, & James M. Cordes (
    lazio@rsd.nrl.navy.mil)
    Paper: to appear in ApJS [Abstract, Tex, Paper] (Fri Apr 17 14:24:35 MET DST 1998)

  7. ``Hyperstrong Radio-Wave Scattering in the Galactic Center. II., A Likelihood Analysis of Free Electrons in the Galactic Center''
    T. Joseph W. Lazio, & James M. Cordes (
    lazio@rsd.nrl.navy.mil)
    Paper: to appear in ApJ [Abstract, Tex, Paper] (Fri Apr 17 14:25:05 MET DST 1998)

  8. ``A model for OH(1720 MHz) masers associated with supernova remnants, and an application to Sgr A East''
    Mark Wardle, Farhad Yusef-Zadeh, & T.R. Geballe (
    wardle@Physics.usyd.edu.au)
    Paper: submitted to ApJ Lett [Abstract, Tex, EPrint-Server] (Fri Apr 17 16:07:57 MET DST 1998)

  9. ``The interaction of the Galactic center filament system G359.54+0.18 with its ambient medium''
    J. Staguhn1,5, J. Stutzki1, K.I. Uchida2,3, and F. Yusef-Zadeh4 (
    staguhn@astro.umd.edu)
    Paper: to appear in A&A [Abstract, Paper] (Wed May 6 11:17:25 MET DST 1998)

  10. ``X-ray Imaging Spectroscopy of the Galactic Center Region''
    Yoshitomo Maeda (
    maeda@astro.psu.edu)
    Paper: PhD thesis, Dept.of Physics, Kyoto University [Abstract] (Wed May 6 12:22:41 MET DST 1998)

  11. ``Equivalent width, shape and proper motion of the iron fluorescent line emission from the molecular clouds as an indicator of the illuminating source X-ray flux history''
    R. Sunyaev,1,2 E. Churazov,1,2 (
    churazov@MPA-Garching.MPG.DE)
    Paper: to appear in MNRAS [Abstract, Tex, EPrint-Server] (Wed May 6 13:36:30 MET DST 1998)

  12. ``Gamma-ray limits on Galactic 60Fe nucleosynthesis and implications on the Origin of the 26Al emission''
    Juan E. Naya, Scott D. Barthelmy, Lyle M. Bartlett, Neil Gehrels, Ann Parsons, Bonnard J. Teegarden, Jack Tueller, & Marvin Leventhal (
    naya@tgrs2.gsfc.nasa.gov)
    Paper: ApJ Letters, in press [Abstract, Tex] (Wed May 6 14:48:36 MET DST 1998)

  13. `` The Pistol Star''
    Donald F. Figer1, Francisco Najarro2,5, Mark Morris1, Ian S. McLean1, Thomas R. Geballe3, Andrea M. Ghez1, & Norbert Langer4 (
    figer@gc.astro.ucla.edu)
    Paper: ApJ, in press [Abstract, Tex, Paper] (Thu May 7 11:07:35 MET DST 1998)

  14. ``Angular momentum transport, in the central region of the Galaxy''
    Leonid M. Ozernoy1,2, Alexei M. Fridman3,4, Peter L. Biermann5 (
    OZERNOY@achamp.gsfc.nasa.gov)
    Paper: to appear in A&A [Abstract, Tex, EPrint-Server] (Tue May 12 11:09:52 MET DST 1998)

  15. ``High-Energy Gamma-Ray Emission from the Galactic Center''
    H.A. Mayer-Hasselwander1, D.L. Bertsch2, B.L. Dingus3, A. Eckart1, J.A. Esposito2,10, R. Genzel1, R.C. Hartman2, S.D. Hunter2, G. Kanbach61, D.A. Kniffen4, Y.C. Lin5, P.F. Michelson65, A. Mücke1, C. von Montigny6, R. Mukherjee7, P.L.Nolan5, M. Pohl8, O. Reimer1, E.J. Schneid9, P. Sreekumar2,10, D.J. Thompson2 (
    hrm@mpe.mpg.de)
    Paper: A&A, in press [Abstract, Text] (Tue May 19 15:53:35 MET DST 1998)

  16. ``An extraordinary cluster of massive young stars in the Milky Way's nucleus''
    E. Serabyn(1), D. Shupe(2), D. F. Figer(3) (
    figer@gc.astro.ucla.edu)
    Paper: to appear in Nature [Abstract, Tex, Paper] (Fri Jun 5 11:05:13 MET DST 1998)

  17. ``A supermassive Black Hole or a Compact Object Without Events Horizon''
    L.V. Verozub, E.Yu. Bannikova (
    verozub@gravit.kharkov.ua)
    Paper: LANL E-print [Abstract, Tex, EPrint-Server] (Fri Jun 5 11:11:19 MET DST 1998)

  18. ``Explaining the spectrum from the Galactic Centre using a two temperature plasma''
    Rohan Mahadevan (
    rohan@cfata1.harvard.edu)
    Paper: to appear in Nature [Abstract, Tex, EPrint-Server] (Fri Jun 12 12:42:24 MET DST 1998)

  19. ``Massive Stars in the Quintuplet Cluster''
    Donald F. Figer, Ian S. McLean, Mark Morris (
    figer@gc.astro.ucla.edu)
    Paper: submitted to ApJ [Abstract, Paper] (Mon Jun 22 15:33:38 MET DST 1998)

  20. ``Stellar Gas Flows Into A Dark Cluster Potential At The Galactic Center''
    Fulvio Melia and Robert Coker (
    rfc@physics.Arizona.EDU)
    Paper: ApJ, submitted [Abstract, Tex, EPrint-Server] (Wed Jul 1 12:04:44 MET DST 1998)

  21. ``Microlensing Event Rates and Optical Depth toward the Galactic Center''
    S.J. Peale (
    peale@io.physics.ucsb.edu)
    Paper: to appear in ApJ [Abstract, Tex, EPrint-Server] (Thu Jul 2 09:50:34 MET DST 1998)

  22. ``BeppoSAX observations of a new X-ray burster in the Galactic Center region, possibly coincident with a recurrent transient.''
    L. Sidoli\inst1, 2, S. Mereghetti(1), G.L. Israel\inst3, 4, G. Cusumano(5), L. Chiappetti(1), A. Treves(6) (
    sidoli@ifctr.mi.cnr.it)
    Paper: to appear in A&ALetters, Aug 1998 [Abstract, Tex, EPrint-Server] (Tue Jul 14 12:10:01 MET DST 1998)

  23. ``A Model of the EGRET Source at the Galactic Center:, Inverse Compton Scattering Within Sgr A East and its Halo''
    Fulvio Melia, Farhad Yusef-Zadeh, and Marco Fatuzzo (
    melia@spacetime.physics.Arizona.EDU)
    Paper: ApJ, in press [Abstract, Tex, EPrint-Server] (Tue Jul 14 12:14:13 MET DST 1998)

  24. `` High Proper Motion Stars in the Vicinity of Sgr A*: Evidence for a Supermassive Black Hole at the Center of Our Galaxy''
    A. M. Ghez(1,2), B. L. Klein, M. Morris, & E. E. Becklin (
    ghez@athena.astro.ucla.edu)
    Paper: ApJ, accepted [Abstract, Tex, EPrint-Server] (Tue Jul 21 18:54:02 MET DST 1998)

  25. ``The Nature of the Mid-Infrared Background Radiation in the Galactic Bulge from the IRTS Observations''
    Kin-Wing Chan, T. L. Roellig, T. Onaka, I. Yamamura, & T. Tanabe (
    kwc@ssa1.arc.nasa.gov)
    Paper: to appear in ApJ Letters [Abstract, Tex, EPrint-Server] (Thu Jul 30 09:58:06 MET DST 1998)

  26. ``Detection of H_3+ in the Diffuse Interstellar Medium: The Galactic Center and Cygnus OB2 No. 12''
    T. R. Geballe, B. J. McCall, K. H. Hinkle, & T. Oka (
    t.geballe@jach.hawaii.edu)
    Paper: accepted by ApJ [Abstract, Tex] (Fri Jul 31 10:51:14 MET DST 1998)

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