Journal: The Astrophysical Journal

  • Publication
    Pattern Speeds of Bars and Spiral Arms from Hα Velocity Fields
    We have applied the Tremaine-Weinberg method to 10 late-type barred spiral galaxies using data cubes, in Hα emission, from the FaNTOmM and GHAFAS Fabry-Perot...
  • Publication
    Peculiar Transverse Velocities of Galaxies from Quasar Microlensing. Tentative Estimate of the Peculiar Velocity Dispersion at z ~ 0.5
    We propose to use the flux variability of lensed quasar images induced by gravitational microlensing to measure the transverse peculiar velocity of lens...
  • Publication
    Peering into the Dark Side: Magnesium Lines Establish a Massive Neutron Star in PSR J2215+5135
    New millisecond pulsars (MSPs) in compact binaries provide a good opportunity to search for the most massive neutron stars. Their main-sequence companion stars...
  • Publication
    Periodic Radio and Hα Emission from the L Dwarf Binary 2MASSW J0746425+200032: Exploring the Magnetic Field Topology and Radius Of An L Dwarf
    We present an 8.5 hr simultaneous radio, X-ray, UV, and optical observation of the L dwarf binary 2MASSW J0746425+200032. We detect strong radio emission...
  • Publication
    Periodic Very High Energy γ-Ray Emission from LS I +61°303 Observed with the MAGIC Telescope
    The MAGIC collaboration has recently reported the discovery of γ-ray emission from the binary system LS I +61°303 in the TeV energy region. Here we present new...
  • Publication
    Pervasive Linear Polarization Signals in the Quiet Sun
    This paper investigates the distribution of linear polarization signals in the quiet-Sun internetwork using ultra-deep spectropolarimetric data. We reduce the...
  • Publication
    PG 1553+113: Five Years of Observations with MAGIC
    We present the results of five years (2005-2009) of MAGIC observations of the BL Lac object PG 1553+113 at very high energies (VHEs; E > 100 GeV). Power-law...
  • Publication
    Phase and Gain Relations between Low-Degree Intensity and Velocity Acoustic Modes during the Solar Activity Cycle
    Phase and gain relations between low-degree acoustic modes measured as intensity and velocity fluctuations have been carried out using various instruments and...
  • Publication
    Phase Differences and Gains between Intensity and Velocity in Low-Degree Acoustic Modes Measured by SOHO
    Helioseismic instruments aboard SOHO are making possible a more accurate way of investigating the internal structure of the Sun. Making use of the different...