[Picture of Morris]

Mark R. Morris

Astronomy
Office: Physics & Astronomy Bldg. 3-917
Phone: (310) 825-3320
morris at astro.ucla.edu



Brief Academic History   -   Research Interests   -   Conference Organization   -   Classes   -   Recent Publications

Academic History:

B.A., Physics, University of California, Riverside, 1969.
Ph.D., Physics, University of Chicago, 1975.
Post-doc at Owens Valley Radio Observatory, Caltech from 1975 to 1977.
Assistant Professor, Astronomy Department, Columbia University, 1977-1982.
At UCLA since 1983, currently a Professor in the Department of Physics and Astronomy,
and Vice-Chair for Astronomy & Astrophysics


Research Interests:

The Galactic Center. Much of Professor Morris' research is aimed at understanding the innermost regions of our Milky Way Galaxy. This relatively extreme environment is characterized by high densities of stars, gas and energy, as well as very strong magnetic fields. All of this gives rise to a variety of phenomena not evident elsewhere, including stellar collisions, large-scale shocks, powerful magnetohydrodynamic displays, and a central, supermassive black hole. Dr. Morris uses radio, infrared, and X-ray observatories to learn as much as possible about this complex region and to elucidate its unusual phenomenology, much of which is likely to be important for understanding active galactic nuclei and galactic evolution.

Bipolar Nebulae. Dr. Morris also does research on a critical stage of stellar evolution, when red giant stars undergo the transition to planetary nebulae. Using both observational and theoretical techniques, he and his colleagues are trying in particular to understand the bipolar morphology of many molecular circumstellar envelopes and the mechanisms which cause mass ejection along well-defined polar axes, especially in the final stages before a planetary nebula is produced. His current observational research in this area employs the Hubble Space Telescope, the Chandra X-ray Observatory, the VLBA, and the Keck Telescopes.

Protoplanetary Disks. The formation of a star is almost always believed to be accompanied by the presence of a long-lived accretion disk. After the central star is formed, the persistent disk can form planets over a time scale extending beyond a million years. Such protoplanetary disks are often highly obscured, and thus are accessible to only radio or long-wavelength infrared observations. However, in certain locations, notably the Orion Nebula, the Hubble Space Telescope has revealed that some such disks, known as "proplyds", can be seen in silhouette in visual or near-infrared light. In this unusual environment, the disks are being rapidly photoevaporated by the intense ultraviolet radiation emanating from the nearby Trapezium stars. With Ralph Shuping and John Bally, Morris has been studying these spectroscopically with the Keck Telescope in an effort to measure their kinematics, their detailed content, and, if possible, their rotation.

SOFIA. The next generation in airborne astronomy is the Stratospheric Observatory for Infrared Astronomy , a NASA-funded project with which Dr. Morris has been associated since the project began. This observatory, a modified Boeing 747SP, houses a 2.5-meter telescope which can operate all the way from optical to submillimeter wavelengths. First light is expected in 2008. Morris is associated with the team producing the submillimeter instrument for SOFIA, CASIMIR. Other SOFIA activities at UCLA include construction of the facility near-infrared camera, FLITECAM, and the overall scientific direction of the project by Professor Eric Becklin.




Recent UCLA Conferences and Workshops:


  • Grand Challenge Problems in Computational Astrophysics, ; March 7 - June 10, 2005
  • Mathematical Challenges in Astronomical Imaging, ; January 26 - 30, 2004




  • Classes

    fall 2004: Astronomy 7. Astronomy and the Media
    winter 2005: Astronomy 6. Cosmology
    fall 2005: Astronomy 270. Fluids and Dynamics (graduate core course, no URL)
    winter 2006: Astronomy 127. Stellar Atmospheres, Interiors, & Evolution
    fall 2006: General Education 70A. Evolution of the Cosmos, the Earth, and Life
    winter 2007: General Education 70B. Evolution of the Cosmos, The Earth and Life




    Selected Recent Publications

    2007   -   2006   -   2005   -   2004   -   2003   -   2002   -   2001   -   2000

    2007

    “Photometric Stellar Variability in the Galactic Center”; M. Rafelski, A.M. Ghez, S.D. Hornstein, J.R. Lu, & M. Morris, ApJ, in press (2007).

    “Discovery of Variable Iron Fluorescence from Reflection Nebulae in the Galactic Center”; M.P. Muno, F.K. Baganoff, W.N. Brandt, S. Park & M.R. Morris, ApJL, in press (2007) astro-ph/0611651.

    “Adaptive Optics Imaging of IRAS 18276-1431: a Bipolar Pre-Planetary Nebula with Circumstellar ‘Searchlight Beams’ and ‘Arcs’"; C. Sanchez-Contreras, D. Le Mignant, R. Sahai, A. Gil de Paz & M. Morris, ApJ in press (2007) astro-ph/0610891.


    2006

    “A Massive Bipolar Outflow and a Dusty Torus with Large Grains in the Preplanetary Nebula IRAS 22036+5306”; R. Sahai, K. Young, N.A. Patel, C. Sánchez-Contreras & M. Morris, ApJ 653, 1241-1252 (2006) astro-ph/0609455.

    “Silicate Emission Profiles from Low-Mass Protostellar Disks in the Orion Nebula: Evidence for Growth and Thermal Processing of Grains” ; R.Y. Shuping, M. Kassis, M. Morris, N. Smith & J. Bally, ApJL 644, L71-74 (2006) astro-ph/0605174.

    “News from the Year 2006 Galactic Center Workshop” ; M. Morris & S. Nayakshin, J. Phys.: Conf. Ser. 54, eds: R. Schödel, G.C. Bower, M.P. Muno, S. Nayakshin & T. Ott, pp. 461-467 (2006) astroph/0701047.

    "The Galactic Center Magnetosphere” ; M. Morris, J. Phys.: Conf. Ser. 54, eds: R. Schödel, G.C. Bower, M.P. Muno, S. Nayakshin & T. Ott, pp. 1-9 (2006) astroph/0701050.

    “Galactic Prominences on the Rise” ; M. Morris, Science (Perspectives) 314, 70-71 (2006).

    "The Flare Activity of Sgr A*. New Coordinated mm to X-Ray Observations" ; A. Eckart, F.K. Baganoff, R. Schoedel, M. Morris & 16 others, A&A 450, 535-555 (2006) astro-ph/0512440.

    "A magnetic torsional wave near the Galactic Centre traced by a ‘double helix’ nebula" ; M. Morris, K. Uchida & T. Do, Nature 440, 308-310 (2006) astro-ph/0512452.

    "High Spectral Resolution Observations of the Massive Stars in the Galactic Center" ; A. Tanner, D.F. Figer, P. Najarro, R.P. Kudritzki, D. Gilmore, M. Morris, E.E. Becklin, I.S. McLean, A.M. Gilbert, J.R. Graham, J.E. Larkin, N.A. Levenson, & H.I. Teplitz, ApJ 641, 891-904 (2006) astro-ph/0510028.

    "Isolated, Massive Supergiants near the Galactic Center" ; M.P. Muno, G.C. Bower, A.J. Burgasser, F.K. Baganoff, M.R. Morris & W.N. Brandt, ApJ 638, 183-190 (2006) astro-ph/0509617.

    "A Neutron Star with a Massive Progenitor in Westerlund 1" ; M.P. Muno, J.S. Clark, P.A. Crowther, S.M. Dougherty, R. de Grijs, C. Law, S.L.W. McMillan, M.R. Morris, I. Negueruela, D. Pooley, S. Portegies-Zwart & F. Yusef-Zadeh, ApJL 636, L41-44 (2006) astro-ph/0509408.


    2005

    "The First Laser Guide Star Adaptive Optics Observations of the Galactic Center: Sgr A*'s Infrared Color and the Extended Red Emission in its Vicinity" ; A.M. Ghez, S.D. Hornstein, J. Lu, A. Bouchez, D. Le Mignant, M.A. van Dam, P. Wizinowich, K. Matthews, M. Morris, E.E. Becklin, R.D. Campbell, J.C.Y. Chin, S.K. Hartman, E.M. Johansson, R.E. Lafon, P.J. Stomski & D.M. Summers, ApJ 635, 1087-1094 (2005) astro-ph/0508664.

    "A Remarkable Low-Mass X-Ray Binary within 0.1 pc of the Galactic Center" ; M.P. Muno, J.R. Lu, F.K. Baganoff, W.N. Brandt, G.P. Garmire, A.M. Ghez, S.D. Hornstein & M.R. Morris, ApJ 633, 228-239 (2005) astro-ph/0503572.

    "A Hot Helium Plasma in the Galactic Center Region" ; R. Belmont, M. Tagger, M. Muno, M. Morris, & S. Cowley, ApJL 631, L53-56 (2005) astro-ph/0508480.

    "Thermal Dust Emission from Proplyds, Unresolved Disks, and Shocks in the Orion Nebula" ; N. Smith, J. Bally, R.Y. Shuping, M. Morris & M. Kassis, AJ 130, 1763-1777 (2005) astro-ph/0506445.

    "A Candidate Neutron Star Associated with Galactic Center Supernova Remnant Sagittarius A East" ; S. Park, M.P. Muno, F.K. Baganoff, Y. Maeda, M. Morris, G. Chartas, D. Sanwal, D.N. Burrows, & G.P. Garmire, ApJ 631, 964-975 (2005) astro-ph/0506168.

    "IRS16 SW: A New Comoving Group of Young Stars in the Central Parsec of the Milky Way" ; Lu, J.R., Ghez, A.M., Hornstein, S.D., Morris, M., & Becklin, E.E., ApJL 625, L51-54 (2005) astro-ph/0504276.

    "Infrared Spectroscopy of U Equulei's Warm Circumstellar Gas" ; T.R. Geballe, C. Barnbaum, K.S. Noll & M. Morris, ApJ 624, 983-987 (2005) astro-ph/0502154.

    "Stellar Bow Shocks in the Northern Arm of the Galactic Center: More Members and Kinematics of the Massive Star Population" ; A. Tanner, A.M. Ghez, M. R. Morris & J. C. Christou, ApJ 624, 742-750 (2005) astro-ph/0412494.

    "Intraday Variability of Sagittarius A* at 3 Millimeters" ; J.C. Mauerhan, M. Morris, W. Fabian & F.K. Baganoff, ApJL 623, L25-28 (2005) astro-ph/0503124.

    "An Overabundance of Transient X-Ray Binaries within 1 Parsec of the Galactic Center" ; M.P. Muno, E. Pfahl, F.K. Baganoff, W.N. Brandt, A. Ghez, J. Lu & M.R. Morris, ApJL 622, L113-116 (2005) astro-ph/0412492.

    "A Starfish Planetary Nebula, IRAS19024+0044" ; R. Sahai, C. Sanchez-Contreras & M. Morris, ApJ 620, 948-960 (2005)

    "Stellar Orbits around the Galactic Center Black Hole" ; A.M. Ghez, S. Salim, S.D. Hornstein, A. Tanner, J.R. Lu, M. Morris, E.E. Becklin & G. Duchene, ApJ 620, 744-757 (2005) astro-ph/030613.


    2004

    "Kinematic and Structural Analysis of the Minispiral in the Galactic Center from BEAR Spectro-Imagery" ; T. Paumard, J.-P. Maillard & M. Morris, A&A 426, 81-96 (2004) astro-ph/0405197.

    "Census of the Galactic Centre Early-Type Stars Using Spectro-Imagery" ; T. Paumard, R. Genzel, J.P. Maillard, T. Ott, M. Morris, F. Eisenhauer, & R. Abuter, in Young Local Universe, Proc. XXXIXth Rencontres de Moriond, eds: A. Chalabaev, T. Fukui, T. Montmerle, J. Tran-Thanh-Van, Editions Frontieres, Paris (2004) astro-ph/0407189.

    "First Simultaneous NIR/X-ray Detection of a Flare from SgrA*" ; A. Eckart, F.K. Baganoff, M. Morris, M.W. Bautz, W.N. Brandt, G.P. Garmire, R. Genzel, T. Ott, G.R. Ricker, C. Straubmeier, T. Viehmann & R. Schoedel, A&A 427, 1-11 (2004) astro-ph/0403577.

    "The Spectra and Variability of X-ray Sources in a Deep Chandra Observation of the Galactic Center" ; M. Muno, J.S. Arabadjis, F.K. Baganoff, M.W. Bautz, W.N. Brandt, P.S. Broos, Feigelson, G.P. Garmire, M.R. Morris & G. R. Ricker ApJ 613, 1179-1201 (2004) astro-ph/0403463.

    "Diffuse X-ray Emission in a Deep Chandra Image of the Galactic Center" ; M.P. Muno, F.K. Baganoff, M.W. Bautz, E.D. Feigelson, G.P. Garmire, M.R. Morris, S. Park, G.R. Ricker & L.K. Townsley ; ApJ 613, 326-342 (2004) astro-ph/0402087.

    "The Hot Interstellar Medium of the Galactic Center: Observations with Chandra" ; M. Morris, C. Howard, M. Muno, F.K. Baganoff, S. Park, E. Feigelson, G. Garmire, N. Brandt, in The Dense Interstellar Medium in Galaxies , eds: S. Pfalzner, C. Kramer, C. Staubmeier, A. Heithausen, Springer Proc. in Phys. 91, pp 281-285 (2004).

    "350-Micron Galactic Center Dust Observations with SHARC-II" ; J. Staguhn, D. Benford, M. Morris & K. Uchida, in The Dense Interstellar Medium in Galaxies , eds: S. Pfalzner, C. Kramer, C. Staubmeier, A. Heithausen, Springer Proc. in Phys. 91, pp 277-280 (2004).

    "Thermal-Infrared Detection of Optical Outflow Sources in OMC-1 South" ; N. Smith, J. Bally, R.Y. Shuping, M. Morris & T.L. Hayward, ApJL 610, L117 (2004) astro-ph/0406406.

    "A New Mid-Infrared Map of the BN/KL Region Using the Keck Telescope," ; R.Y. Shuping, M. Morris & J. Bally, AJ 128, 363 (2004) astro-ph/0404115.

    "Dynamical Friction on Galactic Center Star Clusters with an Intermediate-Mass Black Hole," ; S.S. Kim, D.F. Figer & M. Morris, ApJL 607, L123 (2004) astro-ph/0405164.

    "The Kinematics of Water Masers in the Stellar Molecular Outflow Source, IRAS 19134+2131," ; H. Imai, M. Morris, R. Sahai, K. Hachisuka, J.R. Azzollini F., A&A 420, 265 (2004).

    “Glimpsing Matter at the Brink” ; M. Morris, Science (Perspectives) 304, pp. 689-692 (2004).

    "Characteristics of Diffuse X-Ray Line Emission within 20 pc of the Galactic Center," ; S. Park, M.P. Muno, F.K. Baganoff, Y. Maeda, M. Morris, C. Howard, M.W. Bautz & G.P. Garmire, ApJ 603, 548-559 (2004) astro-ph/0311460.

    "Variable Infrared Emission from the Supermassive Black Hole at the Center of the Milky Way," ; A.M. Ghez, S.A. Wright, K. Matthews, D. Thompson, D. Le Mignant, A. Tanner, S.D. Hornstein, M. Morris, E.E. Becklin, & B.T. Soifer, ApJL 601, L159 (2004) astro-ph/0309076.

    "An Extended Star Formation History for the Galactic Center from Hubble Space Telescope/NICMOS Observations," ; D.F. Figer, R.M. Rich, S.S. Kim, M. Morris, & E. Serabyn, ApJ 601, 319 (2004) astro-ph/0309757.


    2003

    "X-Ray Emission from the Pre-planetary Nebula Henize 3-1475" ; R. Sahai, J.H. Kastner, A. Frank, M. Morris & E.G. Blackman, ApJL 599, L87 (2003) astro-ph/0312130.

    "A Collimated, High-Speed Outflow from the Dying Star, V Hydrae,"; R. Sahai, M. Morris, G.R. Knapp, K. Young & C. Barnbaum, Nature 426, 261 (2003).

    "High-Precision Stellar Radial Velocities in the Galactic Center," ; D.F. Figer, D. Gilmore, S.S. Kim, M. Morris, E.E. Becklin, I.S. McLean, A.M. Gilbert, J.R. Graham, J.E. Larkin, N.A. Levenson & H.I. Teplitz, ApJ 599, 1139 (2003) astro-ph/0309210.

    “Dynamical Friction on Star Clusters near the Galactic Center,” S.S. Kim & M. Morris, ApJ, 597, 312 (2003) astro-ph/0307271.

    "Squeezars: Tidally Powered Stars Orbiting a Supermassive Black Hole," ; T. Alexander & M. Morris, ApJ 590, L25 – 28 (2003) astro-ph/0305061.

    “Chandra X-Ray Spectroscopic Imaging of SgrA* and the Central Parsec of the Galaxy,” ; F.K. Baganoff, Y. Maeda, M. Morris, M.W. Bautz, W.N. Brandt, W. Cui, J.P. Doty, E.D. Feigelson, G.P. Garmire, S.H. Pravdo, G.R. Ricker & L.K. Townsley, ApJ, 591, 891-915 (2003) astro-ph/0102151.

    “A Deep Chandra Catalog of X-Ray Point Sources toward the Galactic Center,” ; M.P. Muno, F.K. Baganoff, M.W. Bautz, W.N. Brandt, P.S. Broos, E.D. Feigelson, G.P. Garmire, M.R. Morris, G.R. Ricker & L.K. Townsley, ApJ, 589, 225 – 241 (2003) astro-ph/0301371.

    “Evidence for Grain Growth in the Protostellar Disks of Orion,” ; R.Y. Shuping, J. Bally, M. Morris & H. Throop, ApJL, 587, L109–112 (2003).

    “The First Measurement of Spectral Lines in a Short-Period Star Bound to the Galaxy’s Central Black Hole: A Paradox of Youth,” ; A.M. Ghez,, G. Duchene, K. Matthews, S. D. Hornstein, A. Tanner, J. Larkin, M. Morris, E. E. Becklin, S. Salim, T. Kremenek, D. Thompson, B. T. Soifer, G. Neugebauer & I. McLean, ApJL, 586, L127–131 (2003) astro-ph/0302299.

    “An Icy, Bipolar Proto-Planetary Nebula with Knotty Jets: IRAS22036+5306,” ; R. Sahai, A. Zijlstra, C. Sánchez-Contreras & M. Morris, ApJL, 586, L81 – 85 (2003).

    “Dynamics of the Molecular Jets in the Archetypical Preplanetary Nebula, IRAS16342-3814,” M. Morris, R. Sahai & M. Claussen, in Winds, Bubbles, and Explosions, eds: S.J. Arthur & W.J. Henney, Rev. Mex. Astron. Ap., 15, 20 – 22 (2003).

    “Multipolar Bubbles, Point-Symmetry, and Jets in Dying Stars,” R. Sahai & M. Morris, in Winds, Bubbles, and Explosions, eds: S.J. Arthur & W.J. Henney, Rev. Mex. Astron. Ap., 15, 17 – 19 (2003).

    "Keck Near-Infrared Observations of the Orion Proplyds: Initial Results" ; R.Y. Shuping, J. Patience, J. Bally, M. Morris, J.E. Larkin, B.A. Macintosh, SPIE 4834, 364 (2003).

    “The Environment of the Galaxy’s Central Black Hole,” ; M. Morris, in The Galactic Black Hole. Lectures on General Relativity and Astrophysics, eds: H. Falcke and F.W. Hehl, Series in High Energy Physics, Cosmology & Gravitation. Bristol: IoP, pp. 95 – 121 (2003).

    "Full Three Dimensional Orbits For Multiple Stars on Close Approaches to the Central Supermassive Black Hole,"; A.M. Ghez, E. Becklin, G. Duchene, S. Hornstein, M. Morris, S. Salim & A. Tanner, Astron. Nachr., 324, No. S1, Special Supplement, "The central 300 parsecs of the Milky Way", Eds. A. Cotera, H. Falcke, T. R. Geballe, S. Markoff.

    "Deep X-Ray Imaging of the Central 20 Parsecs of the Galaxy with Chandra,"; M. Morris, F. Baganoff, M. Muno, C. Howard, Y. Maeda, E. Feigelson, M. Bautz, N. Brandt, G. Chartas, G. Garmire & L. Townsley, Astron. Nachr., 324, No. S1, Special Supplement "The central 300 parsecs of the Milky Way", Eds. A. Cotera, H. Falcke, T. R. Geballe, S. Markoff.


    2002

    “Massive Stars in the Arches Cluster,” ; D.F. Figer, F. Najarro, D. Gilmore, M. Morris, S.S. Kim, E. Serabyn, I.S. McLean, A.M. Gilbert, J.R. Graham, J.E. Larkin, N.A. Levenson, & H.I. Teplitz, H.I., ApJ, 581, 258 – 275 (2002) astro-ph/0208145.

    “Limits on the Short-Term Variability of Sagittarius A* in the Near-Infrared,” ; S.D. Hornstein, A.M. Ghez, A. Tanner, M. Morris, E.E. Becklin & P. Wizinowich, ApJ, 577, L9 – L13 (2002) astro-ph/0208239.

    “The Molecular Component of the Galactic Center Arched Filament HII Complex: OVRO Observations of the CS(J=2-1) Line,” ; C.C. Lang, W.M. Goss, & M. Morris, Astron.J., 124, 2677 – 2692 (2002) astro-ph/0208324.

    “Adaptive Optics Near-Infrared Spectroscopy of the SgrA* Cluster,” ; S. Gezari, A.M. Ghez, E.E. Becklin, J. Larkin, I.S. McLean & M. Morris, Ap.J., 576, 790 – 797 (2002) astro-ph/0205186.

    “Spatially Resolved Observations of the Galactic Center Source, IRS21,” ; A. Tanner, A.M. Ghez, M. Morris, E.E. Becklin, A. Cotera, M. Ressler, M. Werner & P. Wizinowich, Ap.J., 575, 860 – 870 (2002) astro-ph/0204372.

    “Starburst Clusters in Galactic Nuclei,” ; D.F. Figer & M. Morris, in Modes of Star Formation and the Origin of Field Populations, ASP Conf. Proc. 285, eds: E.K. Grebel, W. Brandner, p. 381 – 388 (2002) astro-ph/0012500.

    “A Chandra Study of Sgr A East: A Supernova Remnant Regulating the Activity of Our Galactic Center?” ; Y. Maeda, F.K. Baganoff, E .D. Feigelson, M. Morris, M.W. Bautz, W.N. Brandt, D.N. Burrows, J.P. Doty, G.P. Garmir e, S.H. Pravdo, G.R. Ricker & L.K. Townsley, ApJ, 570, 671 – 687 (2002) astro-ph/010218.


    2001

    “Discovery of Rapid X-Ray Flaring from the Direction of the Supermassive Black Hole at the Galactic Center,” ; F.K. Baganoff, M.W. Bautz, W.N. Brandt, G. Chartas, E.D. Feigelson, G.P. Garmire, Y. Maeda, M. Morris, G.R. Ricker, L.K. Townsley \& F. Walter, Nature, 413, 45 – 48 (2001) astro-ph/0109367.

    “Spatial Diffusion of Stars in the Inner Galactic Bulge,” ; S.S. Kim & M. Morris, Ap.J., 554, 1059 – 1069 (2001) astro-ph/0102238.

    “A VLA H92a Recombination Line Study of the Arched Filament HII Complex Near the Galactic Center,” ; C.C. Lang, W.M. Goss & M. Morris, Astron. J., 121, 2681 – 2705 (2001) astro-ph/0102130. (cover article)

    “New Results on the Helium Stars in the Galactic Center Using BEAR Spectro-Imagery,” ; T. Paumard, J.-P. Maillard, M. Morris & Rigaut, F. Astron. Ap., 366, 466 – 480 (2001) astro-ph/0011215.

    “Star Formation in the Galactic Center and Nearby Nuclei,” M. Morris, in Starburst Galaxies: Near and Far, eds: L. Tacconi, D. Lutz, Springer Proc. in Physics #88, pp. 53 – 62 (2001).


    2000

    "N-Body Simulations of Compact Young Clusters Near the Galactic Center,"; S.S. Kim, D.F. Figer, H.-M. Lee & M. Morris, Ap.J., 545, 301 – 308 (2000) astro-ph/0008441.

    "The Accelerations of Stars Orbiting the Milky Way's Central Black Hole,"; A.M. Ghez, M. Morris, E.E. Becklin, A. Tanner, & T. Kremenek, Nature, 407, 349 – 351 (2000) astro-ph/0009339.

    “2 Micron Spectroscopy within 0.3" of Sagittarius A*,” D.F. Figer, E.E. Becklin, I.S. McLean, A.M. Gilbert, J.R. Graham, J.E. Larkin, N.A. Levenson, H.I. Teplitz, M.K. Wilcox & M. Morris, M. Ap.J.Letters, 533, L49 – 52 (2000) astro-ph/0001171.

    "Magnetic Flux Accumulation at the Galactic Center and its Implications for the Strength of the Pre-Galactic Magnetic Field,"; B.D.G. Chandran, S.C. Cowley & M. Morris, Ap.J., 528, 723 – 733 (2000).

    “TheVLA in Galactic Center Research,” M. Morris, in Radio Interferometry: the Saga and the Science, proc. of a symposium honoring Barry Clark at 60, eds: D.G. Finley, W.M. Goss, Associated Universities, Inc. (NRAO Workshop No. 27), pp. 112 – 130 (2000). (invited review)

    “A Debate: Single Stars or Binary Systems as Progenitors of Bipolar Planetary Nebulae?” V. Bujarrabal, G. Garcia-Segura, M. Morris, N. Soker & Y. Terzian, in Asymmetrical Planetary Nebulae II: From Origins to Microstructures, ASP Conf. Ser. #199, eds: J.H. Kastner, N. Soker & S. Rappaport, pp. 201 – 207 (2000).

    “Mid-Infrared Imaging of Pre-planetary Nebulae,” M. Morris & R. Sahai, in Asymmetrical Planetary Nebulae II: From Origins to Microstructures, ASP Conf. Ser. #199, eds: J.H. Kastner, N. Soker & S. Rappaport, pp. 143 – 146 (2000).

    “Kinematics of Ionized Gas in the Central Parsec of the Galaxy from High-Resolution Spectroscopy of the Brackett-g Line,” M. Morris & J.-P. Maillard, in Imaging the Universe in 3 Dimensions: Astrophysics with Advanced Multi-Wavelength Imaging Devices, eds: J. Bland-Hawthorn & W. van Breugel, pp. 196 – 199 (2000).


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