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A rotating accretion disk around MWC297, a young B1.5 Ve star
Goran Sandell, William Vacca
High resolution spectra with iSHELL on IRTF in the K and M band of the young, heavily accreting B 1.5e star MWC297 show numerous double-peaked CO lines. These CO lines originate in…
Multi-wavelength Observations of MWC 297: Constraints on Disk Inclination and Mass Outflow
William D. Vacca, Göran Sandell
MWC 297 is a young, early-type star driving an ionized outflow and surrounded by warm, entrained dust. Previous analyses of near- and mid-IR interferometric images suggest that the…
FORCAST imaging of two small nearby Clusters: The Coronet and B59
G. Sandell, B. Reipurth, W. D. Vacca +1
We present mid infrared imaging of two young clusters, the Coronet in the CrA cloud core and B59 in the Pipe Nebula, using the FORCAST camera on the Stratospheric Observatory for I…
Velocity resolved [O I] 63 m emission in the HD 50138 circumstellar disk
G. Sandell, C. Salyk, M. van den Ancker +5
HH 50138 is one of the brightest B[e] stars at a distance of 380 pc with strong infrared excess. The star was observed in [O I] 63 m and [C II] 158 m with high velocit…
TADPOL: A 1.3 mm Survey of Dust Polarization in Star-forming Cores and Regions
Charles L. H. Hull, Richard L. Plambeck, Woojin Kwon +22
We present λ1.3 mm CARMA observations of dust polarization toward 30 star-forming cores and 8 star-forming regions from the TADPOL survey. We show maps of all sources, and compare…
Sub-arcsec Observations of NGC 7538 IRS 1: Continuum Distribution and Dynamics of Molecular Gas
Lei Zhu, Jun-Hui Zhao, Melvyn Wright +5
We report new results based on the analysis of the SMA and CARMA observations of NGC 7538\,IRS\,1 at 1.3 and 3.4 mm with sub-arcsec resolutions. With angular resolutions 0\f…