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 Evolution of Galaxies: People
Konstantinos Tassis's Picture
Address:
Jet Propulsion Laboratory
M/S 169-506
4800 Oak Grove Drive
Pasadena, CA 91109
Phone:
818 393-2487
Fax:
818 354-8895
Email:

Konstantinos Tassis

Education
  • M.S. Astronomy, University of Illinois at Urbana-Champaign (2001)
  • Ph.D. Astronomy, University of Illinois at Urbana-Champaign (2005)
Research Interests
  • Star Formation: multi-fluid non-ideal MHD simulations; molecular cloud fragmentation; molecular cloud core contraction; envelope accretion; magnetic winds around protostars
  • Large-Scale Star Formation: interpretation of large-scale star formation laws; star formation, feedback, and their effect on galaxy formation; implementation of star formation recipes in cosmological simulations
  • Observational Tests of Star Formation Theories: ages of molecular clouds, formation timescales of molecular clouds, cloud cores, and protostellar objects; shapes of molecular clouds and molecular cloud cores; magnetic field orientation in molecular clouds; MHD modeling of specific molecular clouds; density and velocity profiles of molecular cloud cores
  • Dusty Plasmas: dynamical effects of dust grains on MHD waves and instabilities; grain coagulation and surface chemistry
Professional Experience
  • Postdoctoral fellow, Jet Propulsion Laboratory (2008 – present)
  • Postdoctoral fellow, Kavli Institute for Cosmological Physics and Department of Astronomy and Astrophysics, The University of Chicago (2005 – 2008)
  • Research Assistant, University of Illinois at Urbana-Champaign (1999-2005)
Selected Awards
  • NASA Postdoctoral Program Fellowship (2008)
  • American Astronomical Society Small Research Grant (2006)
  • Dissertation Completion Fellowship, Graduate College, University of Illinois at Urbana-Champaign (2004-2005)
Selected Publications
  1. Tassis, K., Kravtsov, A. V. and Gnedin, N. Y. 2008, Scaling Relations of Dwarf Galaxies without Supernova-driven Winds, ApJ, 672, 888
  2. Chiang, H.-F., Looney, L. W.,Tassis, K., Mundy, L. G. and Mouschovias, T. Ch. 2008, Constraining the Earliest Circumstellar Disks and Their Envelopes, ApJ, 680, 474
  3. Tassis, K. 2007, The star formation law in a multifractal ISM, MNRAS, 382, 1317
  4. Tassis, K. 2007, The shapes of molecular cloud cores in Orion, MNRAS, 379, L50
  5. Tassis, K. and Mouschovias, T. Ch. 2007, Protostar Formation in Magnetic Molecular Clouds beyond Ion Detachment. I. Formulation of the Problem and Method of Solution, ApJ, 660, 370
  6. Tassis, K. and Mouschovias, T. Ch. 2007, Protostar Formation in Magnetic Molecular Clouds beyond Ion Detachment. II. Typical Axisymmetric Solution, ApJ., 660, 388
  7. Tassis, K. and Mouschovias, T. Ch. 2007, Protostar Formation in Magnetic Molecular Clouds beyond Ion Detachment. III. A Parameter Study, ApJ., 660, 402
  8. Mouschovias, T. Ch., Tassis, K. and Kunz, M. 2006, Observational Constraints on the Ages of Molecular Clouds and the Star Formation Timescale: Ambipolar-Diffusion-controlled or Turbulence-induced Star Formation? ApJ, 646, 1043
  9. Tassis, K. and Mouschovias, T. Ch. 2005, Magnetically Controlled Spasmodic Accretion during Star Formation. I. Formulation of the Problem and Method of Solution, ApJ, 618, 769
  10. Tassis, K. and Mouschovias, T. Ch. 2005, Magnetically Controlled Spasmodic Accretion during Star Formation. II. Results, ApJ, 618, 769
  11. Tassis, K. and Mouschovias, T. Ch. 2004, Ambipolar-Diffusion Timescale, Star Formation Timescale, and the Ages of Molecular Clouds: Is There a Discrepancy? ApJ, 616, 283
  12. Tassis, K., Abel, T., Bryan, G.L., and Normal, M.L. 2003, Numerical Simulations of High-Redshift Star Formation in Dwarf Galaxies, ApJ, 587, 13
  13. Pavlidou, V., Tassis, K., Baumgarte, T.W. and Shapiro, S.L. 2000, Radiative falloff in neutron star spacetimes, Phys. Rev. D. 62, 4020

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