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Trigonometric Parallaxes Of High-Mass Star Forming Regions: Our View Of The Milky Way
M. J. Reid, K. M. Menten, A. Brunthaler +15
We compile and analyze ~200 trigonometric parallaxes and proper motions of molecular masers associated with very young high-mass stars. These measurements strongly suggest that the…
Protostellar Outflows at the EarliesT Stages (POETS). III. H2O masers tracing disk-winds and jets near luminous YSOs
Luca Moscadelli, Alberto Sanna, Ciriaco Goddi +3
The goal of the Protostellar Outflows at the EarliesT Stages (POETS) survey is to image the disk-outflow interface on scales of 10-100 au in a statistically significant sample (36)…
Measuring the ionisation fraction in a jet from a massive protostar
R. Fedriani, A. Caratti o Garatti, S. J. D. Purser +7
It is important to determine if massive stars form via disc accretion, like their low-mass counterparts. Theory and observation indicate that protostellar jets are a natural conseq…
Sub-arcsecond (sub)millimeter imaging of the massive protocluster G358.93-0.03: Discovery of 14 new methanol maser lines associated with a hot core
C. L. Brogan, T. R. Hunter, A. P. M. Towner +25
We present (sub)millimeter imaging at 0.5'' resolution of the massive star-forming region G358.93-0.03 acquired in multiple epochs at 2 and 3 months following the recent flaring of…
Understanding Accretion Outbursts in Massive Protostars through Maser Imaging
Todd R. Hunter, Anna Bartkiewicz, Walter Brisken +8
The bright maser emission produced by several molecular species at centimeter to long millimeter wavelengths provides an essential tool for understanding the process of massive sta…
Protostellar Outflows at the EarliesT Stages (POETS). II. A possible radio synchrotron jet associated with the EGO G035.02+0.35
A. Sanna, L. Moscadelli, C. Goddi +7
Centimeter continuum observations of protostellar jets have revealed the presence of knots of shocked gas where the flux density decreases with frequency. This spectrum is characte…
A 10- YSO with a Keplerian disk and a nonthermal radio jet
Luca Moscadelli, Alberto Sanna, Riccardo Cesaroni +3
We previously observed the star-forming region G16.590.05 through interferometric observations of both thermal and maser lines, and identified a high-mass young stellar object (…