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High resolution imaging of molecular line emission from high redshift QSOs
C. L. Carilli, K. Kohno, R. Kawabe +6
We present moderate (1'') and high resolution (0.2'') observations of the CO(2-1) emission at 43 GHz, and radio continuum emission at 1.47 GHz, from the z=4.7 QSO BRI 1202-0725 and…
Outflow 20--2000 AU from a High-Mass Protostar in W51-IRS2
J. A. Eisner, L. J. Greenhill, J. R. Herrnstein +2
We present the results of the first high angular resolution observations of SiO maser emission towards the star forming region W51-IRS2 made with the Very Large Array (VLA) and Ver…
Massive molecular outflows
H. Beuther, P. Schilke, K. M. Menten +3
Well established correlations of low-mass flows show a continuity in the high-mass regime, and mean accretion rates for L>1000 Lsun are dM/dt~10^(-4) Msun/yr. We also present a tig…
High-Mass Proto-Stellar Candidates - II : Density structure from dust continuum and CS emission
H. Beuther, P. Schilke, K. M. Menten +3
We present a detailed 1.2 mm continuum and CS spectral line study of a large sample of 69 massive star forming regions in very early stages of evolution, most of them prior to buil…
High-Mass Proto-Stellar Candidates - I : The Sample and Initial Results
T. K. Sridharan, H. Beuther, P. Schilke +2
We describe a systematic program aimed at identifying and characterizing candidate high-mass proto-stellar objects (HMPOs). Our candidate sample consists of 69 objects selected by…
Water Maser Emission from the Active Nucleus in M51
Yoshiaki Hagiwara, Christian Henkel, Karl. M. Menten +1
22 GHz water vapor `kilomaser' emission is reported from the central region of the Whirlpool galaxy M 51 (NGC 5194). The red-shifted spectral features (Vlsr ~ 560 km/s), flaring du…