Kyle Stewart Image

Kyle Stewart, Ph.D.

Associate Professor of Physics

Office Phone: (951) 552-8723
Office Location: James Building, 471
Office Hours: TR: 4:30-6:30pm, or by appointment (Virtual via Zoom)

Degree Major Emphasis Institution Year
Ph.D. Physics / Astrophysics University of California, Irvine 2009
M.S. Physics / Astrophysics University of California, Irvine 2006
B.S. Astrophysics University of California, Los Angeles 2004
  • Additional Education

    NASA Postdoctoral Program Fellow at the Jet Propulsion Laboratory (JPL) in Pasadena, CA -- 2009-2012

  • Courses Taught

    PHY 113 (Astronomy I)
    PHY 113L (Astronomy I Lab)
    PHY 201 (Physics for Engineers I w/ Lab)
    PHY 214 (Physics for Scientists I w/ Lab)
    PHY 301 (Astronomy II)
    PHY 301L (Astronomy II Lab)
    PHY 320 (Modern Physics)

  • Academic Areas & Scholarly Interests

    Galaxy Formation; Gas Accretion; Galaxy Halos; Cosmological Simulations;
    Galaxy Simulations; Galaxy Mergers; Dark Matter; Large Scale Structure;
    Physics Education; Science and Faith; Interprofessional Education

  • Research, Presentations, & Publications

    Selected Publications:
    Gas Accretion and Angular Momentum, K.R. Stewart, Astrophysics and Space Science Library, Vol. 430, Gas Accretion Onto Galaxies, ed. A. Fox & R. Dave (Springer International Publishing), 2017

    High Angular Momentum Halo Gas: a Feedback and Code{Independent Prediction of LCDM, K.R. Stewart, A. Maller, J. Onorbe, J. Bullock, J. Ryan, J. Devriendt, D. Ceverino, D. Keres, P. Hopkins, F.G. Claude, ApJ, 843, 47S, 2017

    Angular Momentum Acquisition in Galaxy Halos, K.R. Stewart, A. Brooks, J. Bullock, A. Maller, J. Diemand, J. Wadsley, L. Moustakas, ApJ, 769, 74, 2013

    Orbiting Circum-galactic Gas as a Signature of Cosmological Accretion, K.R. Stewart, T. Kaufmann, J. Bullock, E. Barton, A. Maller, J. Diemand, J. Wadsley, The Astrophysical Journal, 738, 39, 2011

    Observing the End of Cold Flow Accretion using Halo Absorption Systems, K.R. Stewart, T. Kaufmann, J. Bullock, E. Barton, A. Maller, J. Diemand, J. Wadsley, The Astrophysical Journal Letters, 735, 1, 2011

    Gas-rich Mergers in LCDM: Disk Survivability and the Baryonic Assembly of Galaxies, K.R. Stewart, J.S. Bullock, R.H.Wechsler, and A.H. Maller, The Astrophysical Journal, 702, 307, 2009

    Galaxy Mergers and Dark Matter Halo Mergers in LCDM: Mass, Redshift, and Mass-Ratio Dependence, K.R. Stewart, J.S. Bullock, E.J. Barton, R.H. Wechsler, The Astrophysical Journal, 702, 1005, 2009

    Merger Histories of Galaxy Halos and Implications for Disk Survival, K.R. Stewart, J.S. Bullock, R.H. Wechsler, A.H. Maller, and A.R. Zentner, The Astrophysical Journal, 653, 597, 2008

    For full publication list (and free access to all articles) see:

  • Church Membership & Activities

    One & All Church, Rancho Cucamonga Location

  • Interests & Hobbies

    In my free time, I enjoy reading, playing the piano, games and puzzles, and spending time outdoors with my son. My wonderful wife, Tania, is a professor of oncology at Keck Graduate Institute School of Pharmacy.

  • Personal Philosophy

    The heavens declare the glory of God;
    the skies proclaim the work of his hands.
    Day after day they pour forth speech;
    night after night they reveal knowledge.
    They have no speech, they use no words;
    no sound is heard from them.
    Yet their voice goes out into all the earth,
    their words to the ends of the world.
    --Psalm 19:1-4 (NIV)