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- University of ArizonaUS689 papers
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- Ludwig-Maximilians-Universität MünchenDE657 papers
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17 papers · 2 filters
General Relativistic Radiative Transfer
S. Knop, P. H. Hauschildt, E. Baron
We present a general method to calculate radiative transfer including scattering in the continuum as well as in lines in spherically symmetric systems that are influenced by the ef…
Optical Spectroscopy of the Large Kuiper Belt Objects 136472 (2005 FY9) and 136108 (2003 EL61)
S. C. Tegler, W. Grundy, W. Romanishin +3
We present high signal precision optical reflectance spectra of the large Kuiper belt objects 2005 FY9 and 2003 EL61. The spectrum of 2005 FY9 exhibits strong CH4-ice bands. A comp…
Giant Steps in Cefalu
David J. Jeffery, Paolo A. Mazzali
Giant steps is a technique to accelerate Monte Carlo radiative transfer in optically-thick cells of astrophysical atmospheres by greatly reducing the number of Monte Carlo steps ne…
Hubble Space Telescope Ultraviolet Spectroscopy of Fourteen Low-Redshift Quasars
Rajib Ganguly, Michael S. Brotherton, Nahum Arav +35
We present low-resolution ultraviolet spectra of 14 low redshift (z<0.8) quasars observed with HST/STIS as part of a Snap project to understand the relationship between quasar outf…
r-Process Enhanced Halo Stars
J. J. Cowan, C. Sneden, J. E. Lawler +1
Abundance observations indicate the presence of rapid-neutron capture (i.e., r-process) elements in old Galactic halo and globular cluster stars. These observations provide insight…
Present and future evidence for evolving dark energy
Andrew R Liddle, Pia Mukherjee, David Parkinson +1
We compute the Bayesian evidences for one- and two-parameter models of evolving dark energy, and compare them to the evidence for a cosmological constant, using current data from T…