Department of Physics

 

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  • r-mode seen in inertial frame 

    Hanna, Chad (2005-01-01)
    This animation by Chad Hanna shows an oscillating neutron star seen by an inertial observer. The red dots show the motion of a fluid element, dominated by the star's rotation. The black lines and dotes show the pattern of ...

  • r-mode seen in a frame rotating with the star 

    Hanna, Chad (2005-01-01)
    The figure on the right shows the same oscillating star, now as seen by an observer rotating with the star. The red dots now do not rotate, and the the black lines show the pattern of the mode rotating backwards -- in a ...

  • Neutron star in elliptical orbit about a black hole 

    Stephens, Branson C; East, William E.; Pretorius, Frans (2011-01-01)
    A neutron star in an elliptical orbit about a black holes is disrupted as it passes near the black hole. Its apparent spin after the encounter is not really rotation: Without shocks, circulation is exactly preserved. Instead ...

  • Nonaxisymmetric instability of water drop: Skylab 

    Friedman, John L (1974-01-01)
    Rotating stars with viscosity are unstable to a bar mode after the radio T/|W| of rotational kinetic energy to gravitational binding energy exceeds about 0.14. An analogous instability can be seen in water drops where ...

  • Time-lapse photos showing paths of Jupiter and Saturn 2000-2001 

    Friedman, John L (2001-01-01)
    This photo animation of Jupiter (brighter) and Saturn shows them each moving from west to east then appearing to change direction at nearly the same time and move from east to west (retrograde). Finally, they change direction ...

  • Loop Currents and Anomalous Hall Effect from Time-Reversal Symmetry-Breaking Superconductivity on the Honeycomb Lattice 

    Brydon, P.M.R.; Abergel, D.S.L.; Agterberg, Daniel; Yakovenko, Victor M. (2019-08-14)
    We study a tight-binding model on the honeycomb lattice of chiral d-wave superconductivity that breaks time-reversal symmetry. Because of its nontrivial sublattice structure, we show that it is possible to construct a ...

  • Estimating and correcting interference fringes in infrared spectra in infrared hyperspectral imaging 

    Azarfar, Ghazal; Aboualizadeh, Ebrahim; Walter,, Nicholas; Ratti, Simona; Olivieri, Camilla; Alessandra, Alessandra; Nasse, Michael; Kohler, Achim; Giordano, Mario; Hirschmugl, Carol (2018-09-03)
    Short-term acclimation response of individual cells of Thalassiosira weissflogii was monitored by Synchrotron FTIR imaging over the span of 75 minutes. The cells, collected from batch cultures, were maintained in a constant ...

  • Temporal diabetes-induced biochemical changes in distinctive layers of mouse retina 

    Aboualizadeh, Ebrahim; Sorenson, Christine M.; Schofield, Alex J.; Unger, Miriam; Sheibani, Nader; Hirschmugl, Carol J. (2018-01-18)
    To discover the mechanisms underlying the progression of diabetic retinopathy (DR), a more comprehensive understanding of the biomolecular processes in individual retinal cells subjected to hyperglycemia is required. Despite ...

  • Quantifying Biochemical alterations in Brown and subcutaneous White adipose Tissues of Mice Using Fourier Transform infrared Widefield imaging 

    Aboualizadeh, Ebrahim; Carmichael, Owen T.; He, Ping; Albarado, Diana C.; Morrison, Christopher D.; Hirschmugl, Carol J. (2017-05-31)
    Stimulating increased thermogenic activity in adipose tissue is an important biological target for obesity treatment, and label-free imaging techniques with the potential to quantify stimulation-associated biochemical ...