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A 42.3-43.6 GHz spectral survey of Orion BN/KL: First detection of the v=0 J=1-0 line from the isotopologues 29SiO and 30SiO
C. Goddi, L. J. Greenhill, E. M. L. Humphreys +3
We have surveyed molecular line emission from Orion BN/KL from 42.3 to 43.6 GHz with the Green Bank Telescope. Sixty-seven lines were identified and ascribed to 13 different molecu…
Disks, young stars, and radio waves: the quest for forming planetary systems
Claire J. Chandler, Debra S. Shepherd
Kant and Laplace suggested the Solar System formed from a rotating gaseous disk in the 18th century, but convincing evidence that young stars are indeed surrounded by such disks wa…
New Radio Sources and the Composite Structure of Component B in the Very Young Protostellar System IRAS 16293-2422
Laurent Loinard, Claire J. Chandler, Luis F. Rodriguez +4
In this article, we report high-resolution (~ 0.1" -- 0.3"), high-sensitivity (~ 50 -100 uJy beam-1) Very Large Array 0.7 and 1.3 cm observations of the young stellar system IRAS 1…
A Documentary of High-Mass Star Formation: Probing the Dynamical Evolution of Orion Source I on 10-100 AU Scales using SiO Masers
L. D. Matthews, C. Goddi, L. J. Greenhill +3
A comprehensive picture of high-mass star formation has remained elusive, in part because examples of high-mass YSOs tend to be relatively distant, deeply embedded, and confused wi…
A Photoevaporating Rotating Disk in the Cepheus A HW2 Star Cluster
I. Jimenez-Serra, J. Martin-Pintado, A. Rodriguez-Franco +3
We present VLA and PdBI subarcsecond images (0.15"-0.6") of the radiocontinuum emission at 7 mm and of the SO2 J=19_{2,18}-18_{3,15} and J=27_{8,20}-28_{7,21} lines toward the Ceph…
Imaging the Ionized Disk of the High-Mass Protostar Orion-I
M. J. Reid, K. M. Menten, L. J. Greenhill +1
We have imaged the enigmatic radio source-I (Orion-I) in the Orion-KL nebula with the VLA at 43 GHz with 34 mas angular resolution. The continuum emission is highly elongated and i…