Browsing by Subject "Extinction"

Now showing items 1-7 of 7

    • Characterizing line-of-sight variability of polarized dust emission with future cmb experiments 

      Bull, Philip; McBride, Lisa; Hensley, Brandon S (Oxford University Press, 2023)
      While Galactic dust emission is often accounted for in cosmic microwave background (CMB) analyses by fitting a two-parameter modified blackbody (MBB) model in each pixel, typically a number of such clouds are found along ...

    • Gama/H-Atlas: The dust opacity-stellar mass surface density relation for spiral galaxies 

      Grootes, M.W.; Tuffs, R.J.; Jarvis, Matt (IOP Science, 2013)
      We report the discovery of a well-defined correlation between B-band face-on central optical depth due to dust and the stellar mass surface density of nearby spiral galaxies. This relation was derived from a sample of ...

    • The origin of the dust extinction curve in milky way-like galaxies 

      Davé, Romeel; Vogelsberger, M.; Li, Q; Torrey, P.; Narayanan, D. (Oxford University Press, 2021)
      We develop a cosmological model for the evolution of dust grains in galaxies with a distribution of sizes in order to understand the origin of the Milky Way dust extinction curve. Our model considers the formation of active ...

    • Planck 2018 results. XI. Polarized dust foregrounds 

      Ballardini, M.; Akram, Y.; Ashdown, M. (EDP Sciences, 2020)
      The study of polarized dust emission has become entwined with the analysis of the cosmic microwave background (CMB) polarization in the quest for the curl-like B-mode polarization from primordial gravitational waves and ...

    • Planck 2018 results: XII. Galactic astrophysics using polarized dust emission 

      Aghanim, Nabila; Akrami, Yashar; Alves, Marta I.R. (EDP Sciences, 2020)
      Observations of the submillimetre emission from Galactic dust, in both total intensity I and polarization, have received tremendous interest thanks to the Planck full-sky maps. In this paper we make use of such full-sky ...

    • Stochastic modeling of a mosquito-borne disease 

      Abiodun, Gbenga J.; Witbooi, Peter Joseph; van Schalkwyk, Garth J. (Springer Nature, 2020)
      We present and analyze a stochastic differential equation (SDE) model for the population dynamics of a mosquito-borne infectious disease. We prove the solutions to be almost surely positive and global. We introduce a ...

    • A stochastic population model of cholera disease 

      Witbooi, Peter J; Muller, Grant E; Ongansie, Marshall B (American Institute of Mathematical Sciences, 2022-02)
      A cholera population model with stochastic transmission and stochasticity on the environmental reservoir of the cholera bacteria is presented. It is shown that solutions are well-behaved. In comparison with the underlying ...