Now showing items 1-7 of 7

    • 23 GHz VLBI Observations of SN 2008ax 

      Marti-Vidal, I.; Alberdi, A.; Ros, E.; Shapiro, Irwin Ira; Beswick, R.J.; Pedlar, A.; Immler, S.; Panagia, N.; Van Dyk, S.; Marcaide, J. M.; Guirado, J. C.; Perrez-Torres, M. A.; Muxlow, T. W. B.; Argo, M. K.; Stockdale, C. J.; Sramek, R. A.; Weiler, K. W. (EDP Sciences, 2009)
      We report on phase-referenced 23 GHz Very-Long-Baseline-Interferometry (VLBI) observations of the type IIb supernova SN 2008ax, made with the Very Long Baseline Array (VLBA) on 2 April 2008 (33 days after explosion). These ...
    • Characterization of the Millimeter-Wave Polarization of Centaurus A with QUaD 

      Zemcov, Michael B.; Ade, Peter; Bock, James; Bowden, Melanie; Brown, Michael L.; Cahill, Gary; Castro, Patricia G.; Church, Sarah; Culverhouse, Thomas; Friedman, Robert B.; Ganga, Ken; Gear, Walter K.; Gupta, Sujata; Hinderks, James; Kovac, John M; Lange, Andrew E.; Leitch, Erik; Melhuish, Simon J.; Memari, Yasin; Murphy, J. Anthony; Orlando, Angiola; O’ Sullivan, Creidhe; Piccirillo, Lucio; Pryke, Clem; Rajguru, Nutan; Rusholme, Ben; Schwarz, Robert; Taylor, Andrew N.; Thompson, Keith L.; Turner, Abigail H.; Wu, Ed Y. S. (IOP Publishing, 2010)
      Centaurus (Cen) A represents one of the best candidates for an isolated, compact, highly polarized source that is bright at typical cosmic microwave background (CMB) experiment frequencies. We present measurements of the ...
    • How to distinguish starbursts and quiescently star-forming galaxies: the ‘bimodal’ submillimetre galaxy population as a case study 

      Hayward, Christopher C.; Jonsson, Patrik; Kere?, Du?an; Magnelli, Benjamin; Hernquist, Lars Eric; Cox, T. J. (Oxford University Press (OUP), 2012)
      In recent work, we have suggested that the high-redshift (z∼ 2–4) bright submillimetre galaxy (SMG) population is heterogeneous, with major mergers contributing both at early stages, where quiescently star-forming discs ...
    • The Parsec‐Scale Accretion Disk in NGC 3393 

      Kondratko, Paul T.; Greenhill, Lincoln J.; Moran, James M. (American Astronomical Society, 2008)
      We present a Very Long Baseline Interferometry image of the water maser emission in the nuclear region of NGC 3393. The maser emission has a linear distribution oriented at a position angle of ~–34°, perpendicular to both ...
    • The Redshift Evolution of the Mean Temperature, Pressure, and Entropy Profiles in 80 SPT-Selected Galaxy Clusters 

      McDonald, M.; Benson, B. A.; Vikhlinin, Alexey A.; Aird, K. A.; Allen, S. W.; Bautz, Marshall William; Bayliss, Matthew; Bleem, L. E.; Bocquet, S.; Brodwin, M.; Carlstrom, J. E.; Chang, C. L.; Cho, Hyunjii; Clocchiatti, A.; Crawford, T. M.; Crites, A. T.; de Haan, T.; Dobbs, M. A.; Foley, R. J.; Forman, William R.; George, E. M.; Gladders, M. D.; Gonzalez, A. H.; Halverson, N. W.; Hlavacek-Larrondo, J.; Holder, G. P.; Holzapfel, W. L.; Hrubes, J. D.; Jones, Christine M.; Keisler, R.; Knox, L.; Lee, A. T.; Leitch, E. M.; Liu, J.; Lueker, M.; Luong-Van, D.; Mantz, A.; Marrone, D. P.; McMahon, J; Meyer, S. S.; Miller, Eric; Mocanu, L.; Mohr, J. J.; Murray, S. S.; Padin, S.; Pryke, C.; Reichardt, C. L.; Rest, Armin Wolfgang; Ruhl, J. E.; Saliwanchik, B. R.; Saro, A.; Sayre, James Edward; Schaffer, K. K.; Shirokoff, E.; Spieler, H. G.; Stalder, Brian A; Stanford, S. A.; Staniszewski, Z.; Stark, Aaron William; Story, K. T.; Stubbs, Christopher William; Vanderlinde, K.; Vieira, J. D.; Williamson, R.; Zahn, O.; Zenteno, A. (IOP Publishing, 2014)
      We present the results of an X-ray analysis of 80 galaxy clusters selected in the 2500 deg2 South Pole Telescope survey and observed with the Chandra X-ray Observatory. We divide the full sample into subsamples of ∼20 ...
    • Stellar Locus Regression: Accurate Color Calibration, and the Real-time Determination of Galaxy Cluster Photometric Redshifts 

      High, F. William; Stubbs, Christopher William; Rest, Armin Wolfgang; Stalder, Brian A; Challis, Peter (American Astronomical Society, 2009)
      We present Stellar Locus Regression (SLR), a method of directly adjusting the instrumental broadband optical colors of stars to bring them into accord with a universal stellar color-color locus, producing accurately ...
    • Toward a New Geometric Distance to the Active Galaxy NGC 4258. II. Centripetal Accelerations and Investigation of Spiral Structure 

      Humphreys, E. M. L.; Reid, Mark Jonathan; Greenhill, Lincoln J.; Moran, James M.; Argon, Alice L. (American Astronomical Society, 2008)
      We report measurements of centripetal accelerations of maser spectral components of NGC 4258 for 51 epochs spanning 1994 to 2004. This is the second paper of a series, in which the goal is the determination of a new geometric ...