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A contracting circumbinary molecular ring with an inner cavity of about 140 AU around Ori 139-409
Luis A. Zapata, Peter Schilke, Paul Ho
Sensitive and subarcsecond resolution ( 0.7\arcsec) CHOH(7 6) line and 890 m continuum observations made with the Submillimeter Array (SMA) tow…
Extremely high velocity gas from the massive YSOs in IRAS 17233-3606
S. Leurini, C. Codella, L. A. Zapata +6
Molecular outflows from high-mass young stellar objects provide an excellent way to study the star formation process, and investigate if they are scaled-up versions of their low-ma…
Explosive Disintegration of a Massive Young Stellar System in Orion
Luis A. Zapata, Johannes Schmid-Burgk, Paul T. P. Ho +2
Young massive stars in the center of crowded star clusters are expected to undergo close dynamical encounters that could lead to energetic, explosive events. However, there has so…
A ring/disk/outflow system associated with W51 North: a very massive star in the making
Luis A. Zapata, Paul T. P. Ho, Peter Schilke +4
Sensitive and high angular resolution ( 0.4\arcsec) SO[22 22] and SiO[54] line and 1.3 and 7 mm continuum observations made with the Submilli…
A rotating molecular jet in Orion
Luis A. Zapata, Johannes Schmid-Burgk, Dirk Muders +3
We present CO(2-1), CO(2-1), CO(6-5), CO(7-6), and SO(6) line observations made with the {\it IRAM 30 m} and {\it APEX} radiotelescopes and the {\it Submillimeter Ar…