Skip to main content

4 Result(s)

within Article Remove this filter H. Uitenbroek Remove this filter

and

  1. No Access

    Article

    New Insights into White-Light Flare Emission from Radiative-Hydrodynamic Modeling of a Chromospheric Condensation

    The heating mechanism at high densities during M-dwarf flares is poorly understood. Spectra of M-dwarf flares in the optical and near-ultraviolet wavelength regimes have revealed three continuum components dur...

    Adam F. Kowalski, S. L. Hawley, M. Carlsson, J. C. Allred, H. Uitenbroek… in Solar Physics (2015)

  2. No Access

    Article

    Photon Mean Free Paths, Scattering, and Ever-Increasing Telescope Resolution

    We revisit an old question: what are the effects of observing stratified atmospheres on scales below a photon mean free path λ? The mean free path of photons emerging from the solar photosphere and chromosphere i...

    P. G. Judge, L. Kleint, H. Uitenbroek, M. Rempel, Y. Suematsu, S. Tsuneta in Solar Physics (2015)

  3. Article

    Open Access

    The Interface Region Imaging Spectrograph (IRIS)

    The Interface Region Imaging Spectrograph (IRIS) small explorer spacecraft provides simultaneous spectra and images of the photosphere, chromosphere, transition region, and corona with 0.33 – 0.4 arcsec spatial r...

    B. De Pontieu, A. M. Title, J. R. Lemen, G. D. Kushner, D. J. Akin… in Solar Physics (2014)

    Download PDF (4110 KB) View Article

  4. No Access

    Article

    THE SOLAR Mg II h AND k LINES – Observations and Radiative Transfer Modeling

    This paper presents observations of the MgII h and k lines obtained with the UVSP instrument that flew aboard the SMM satellite. Both spatially averaged and resolved observations are compared with calculated p...

    H. Uitenbroek in Solar Physics (1997)