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7 Result(s)

within Physics Remove this filter Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) Remove this filter R Simon Remove this filter

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  1. No Access

    Article

    The KOSMA large-scale CO survey of clouds in the Galactic Molecular Ring

    We present the status of the KOSMA large-scale observations of clouds in the Galactic Molecular Ring (GMR) in CO J=3-2, 2-1 and 13CO 2-1 following up on the BU-FCRAO 13CO 1-0 survey. The GMR is one of the promine...

    M. Brüll, C. Kramer, V. Ossenkopf, R. Simon, J. Stutzki in Astrophysics and Space Science (2004)

  2. No Access

    Chapter and Conference Paper

    The BU-FCRAO Galactic Ring Survey

    Using the SEQUOIA multi-pixel array receiver on the Five College Radio Astronomy Observatory (FCRAO) 14 m telescope, we are conducting a new molecular line survey of the inner Galaxy. The Boston University (BU...

    R. Simon, J. M. Jackson, R. Shah, J. Rathborne… in The Dense Interstellar Medium in Galaxies (2004)

  3. No Access

    Chapter and Conference Paper

    The Distribution of MSX Dark Clouds in the Inner Milky Way

    Recent high resolution surveys with the ISO and MSX satellites have revealed a large number of Galactic clouds with significant extinction in the midinfrared. The infrared dark clouds are characterized by their h...

    R. Simon, J. M. Jackson, T. M. Bania… in The Dense Interstellar Medium in Galaxies (2004)

  4. No Access

    Chapter and Conference Paper

    The KOSMA Multi-line CO Survey of Clouds in the Galactic Molecular Ring

    The Milky Way is known to be a spiral barred galaxy with a prominent ring between 4 and 7 kpc Galactocentric radius (Scoville & Solomon 1975; Clemens et al. 1988). Ring resonances occur frequently in barred sp...

    M. Brüll, C. Kramer, V. Ossenkopf, J. Stutzki… in The Dense Interstellar Medium in Galaxies (2004)

  5. No Access

    Chapter and Conference Paper

    The Carbon Content in the Galactic CygnusX/DR21 Star Forming Region

    Observations of Carbon bearing species are among the most important diagnostic probes of ongoing star formation. CO is a surrogate for H2 and is found in the vicinity of star formation sites. There, [CI] emission...

    H. Jakob, R. Simon, C. Kramer, B. Mookerjea… in The Dense Interstellar Medium in Galaxies (2004)

  6. No Access

    Article

    Convective stability in magnetic stars

    Dynamical stability of a static axisymmetrical magnetic star with respect to high-order modes of oscillation is investigated by means of the energy method, neglecting the Eulerian perturbation of gravity. The ...

    R. Simon in Astrophysics and Space Science (1980)

  7. No Access

    Article

    Spiral structure and hydrodynamic gravitational resonance

    A persistent and large scale galactic spiral structure might be the result of resonant excitation of density waves, forced in the low viscosity interstellar gas, by the gravitational field of an asymmetric ste...

    R. Simon in Astrophysics and Space Science (1974)