Browsing Faculty of Arts and Sciences by Keyword "diffuse radiation"

Now showing items 1-8 of 8

    • Constraining Spinning Dust Parameters With the WMAP Five-Year Data 

      Dobler, Gregory; Draine, Bruce; Finkbeiner, Douglas (IOP Publishing, 2009)
      We characterize spinning dust emission in the warm ionized medium (WIM) by comparing templates of Galactic dust and Hα with the five-year maps from the Wilkinson Microwave Anisotropy Probe (WMAP). The Hα-correlated microwave ...

    • Extended Anomalous Foreground Emission in the WMAP Three-Year Data 

      Dobler, Gregory; Finkbeiner, Douglas (IOP Publishing, 2008)
      We study the spectral and morphological characteristics of the diffuse Galactic emission in the WMAP temperature data using a template-based multilinear regression, and obtain the following results. (1) We confirm previous ...

    • Identification of Spinning Dust in Hα-Correlated Microwave Emission 

      Dobler, Gregory; Finkbeiner, Douglas (IOP Publishing, 2008)
      CMB experiments commonly use maps of Hα intensity as a spatial template for Galactic free-free emission, assuming a power law Iν ∝ ν−0.15 for the spectrum. Any departure from the assumed free-free spectrum could have a ...

    • Maps of Dust Infrared Emission for Use in Estimation of Reddening and Cosmic Microwave Background Radiation Foregrounds 

      Schlegel, David J.; Finkbeiner, Douglas; Davis, Marc (IOP Publishing, 1998)
      We present a full-sky 100 μm map that is a reprocessed composite of the COBE/DIRBE and IRAS/ISSA maps, with the zodiacal foreground and confirmed point sources removed. Before using the ISSA maps, we remove the remaining ...

    • Microwave Interstellar Medium Emission in the Green Bank Galactic Plane Survey: Evidence for Spinning Dust 

      Finkbeiner, Douglas; Langston, Glen I.; Minter, Anthony H. (IOP Publishing, 2004)
      We observe significant dust-correlated emission outside of H II regions in the Green Bank Galactic Plane Survey (-4° < b < 4°) at 8.35 and 14.35 GHz. The rising spectral slope rules out synchrotron and free-free emission ...

    • The QUaD Galactic Plane Survey 1: Maps And Analysis of Diffuse Emission 

      Culverhouse, T.; Ade, P.; Bock, J.; Bowden, M.; Brown, M.; Cahill, G.; Castro, P.; Church, S.; Friedman, R.; Ganga, K.; Gear, W.; Gupta, S.; Hinderks, J.; Kovac, John M; Lange, A.; Leitch, E.; Melhuish, S.; Memari, Y.; Murphy, J.; Orlando, A.; Schwarz, R.; O'Sullivan, C.; Piccirillo, L.; Pryke, C; Rajguru, N.; Rusholme, B.; Taylor, A.; Thompson, K.; Turner, A.; Wu, E.; Zemcov, M. (IOP Publishing, 2010)
      We present a survey of ∼ 800 square degrees of the galactic plane observed with the QUaD telescope. The primary product of the survey are maps of Stokes I, Q and U parameters at 100 and 150 GHz, with spatial resolution 5 ...

    • The QUaD Galactic Plane Survey. I. Maps and Analysis of Diffuse Emission 

      Culverhouse, Thomas; Ade, Peter; Bock, James; Bowden, Melanie; Brown, Michael L.; Cahill, Gary; Castro, Patricia G.; Church, Sarah E.; Friedman, Robert; Ganga, Ken; Gear, Walter K.; Gupta, Sujata; Hinderks, James R.; Kovac, John M; Lange, Andrew E.; Leitch, Erik; Melhuish, Simon J.; Memari, Yasin; Murphy, J. Anthony; Orlando, Angiola; Schwarz, Robert; O'Sullivan, Creidhe; Piccirillo, Lucio; Pryke, Clement; Rajguru, Nutan; Rusholme, Ben; Taylor, Andrew N.; Thompson, Keith L.; Turner, Abigail H.; Wu, Ed Y. S.; Zemcov, Michael (IOP Publishing, 2010)
      We present a survey of ~800 deg\(^{2}\) of the galactic plane observed with the QUaD telescope. The primary products of the survey are maps of Stokes I, Q, and U parameters at 100 and 150 GHz, with spatial resolution of ...

    • Tentative Detection of Electric Dipole Emission from Rapidly Rotating Dust Grains 

      Finkbeiner, Douglas; Schlegel, David J.; Frank, Curtis; Heiles, Carl (IOP Publishing, 2002)
      We present the first tentative detection of spinning dust emission from specific astronomical sources. All other detections in the current literature are statistical. The Green Bank 140 foot telescope was used to observe ...