Browsing by Author "Rao, Ramprasad"

Now showing items 1-3 of 3

    • The flare activity of Sagittarius A* 

      Eckart, A.; Baganoff, F. K.; Schödel, R.; Morris, M.; Genzel, R.; Bower, G. C.; Marrone, D.; Moran, James M.; Viehmann, T.; Bautz, M. W.; Brandt, W. N.; Garmire, G. P.; Ott, T.; Trippe, S.; Ricker, G. R.; Straubmeier, C.; Roberts, D. A.; Yusef-Zadeh, F.; Zhao, Jun-Hui; Rao, Ramprasad (EDP Sciences, 2006)
      Context. We report new simultaneous near-infrared/sub-millimeter/X-ray observations of the SgrA* counterpart associated with the massive 3–4×106M⊙ black hole at the Galactic Center. Aims. The main aim is to investigate the ...

    • Interferometric Measurements of Variable 340 GHz Linear Polarization in Sagittarius A* 

      Marrone, Daniel P.; Moran, James M.; Zhao, Jun‐Hui; Rao, Ramprasad (IOP Publishing, 2006)
      Using the Submillimeter Array, we have made the first high angular resolution measurements of the linear polarization of Sagittarius A* at submillimeter wavelengths, and the first detection of intra-day variability in its ...

    • An Unambiguous Detection of Faraday Rotation in Sagittarius A* 

      Marrone, Daniel P.; Moran, James M.; Zhao, Jun-Hui; Rao, Ramprasad (IOP Publishing, 2006)
      The millimeter/submillimeter wavelength polarization of Sgr A* is known to be variable in both magnitude and position angle on time scales down to a few hours. The unstable polarization has prevented measurements made at ...