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Mass Assembly of Stellar Systems and Their Evolution with the SMA (MASSES). Multiplicity and the Physical Environment in L1448N
Katherine I. Lee, Michael M. Dunham, Philip C. Myers +18
We present continuum and molecular line observations at 230 GHz and 345 GHz from the Sub-millimeter Array (SMA) toward three protostars in the Perseus L1448N region. The data are f…
Linking low- to high-mass YSOs with Herschel-HIFI observations of water
I. San Jose-Garcia, J. C. Mottram, E. F. van Dishoeck +7
Water probes the dynamics in young stellar objects (YSOs) effectively, especially shocks in molecular outflows. It is a key molecule for exploring whether the physical properties o…
A precessing molecular jet signaling an obscured, growing supermassive black hole in NGC1377?
S. Aalto, F. Costagliola, S. Muller +11
With high resolution (0."25 x 0."18) ALMA CO 3-2 observations of the nearby (D=21 Mpc, 1"=102 pc), extremely radio-quiet galaxy NGC1377, we have discovered a high-velocity, very co…
Challenging shock models with SOFIA OH observations in the high-mass star-forming region Cepheus A
A. Gusdorf, R. Guesten, K. M. Menten +13
OH is a key molecule in H2O chemistry, a valuable tool for probing physical conditions, and an important contributor to the cooling of shock regions. OH participates in the re-dist…
Outflow forces in intermediate mass star formation
T. A. van Kempen, M. R. Hogerheijde, E. F. van Dishoeck +22
Intermediate mass protostarsprovide a bridge between theories of low- and high-mass star formation. Emerging molecular outflows can be used to determine the influence of fragmentat…
Tracing Embedded Stellar Populations in Clusters and Galaxies using Molecular Emission: Methanol as a Signature of the Low-Mass End of the IMF
L. E. Kristensen, E. A. Bergin
Most low-mass protostars form in clusters, in particular high-mass clusters; however, how low-mass stars form in high-mass clusters and what the mass distribution is, are still ope…
Far infrared CO and HO emission in intermediate-mass protostars
M. Matuszak, A. Karska, L. E. Kristensen +4
Intermediate-mass young stellar objects (YSOs) provide a link to understand how feedback from shocks and UV radiation scales from low to high-mass star forming regions. Aims: Our a…
Impacts of pure shocks in the BHR71 bipolar outflow
Antoine Gusdorf, Denise Riquelme, Sibylle Anderl +10
During the formation of a star, material is ejected along powerful jets that impact the ambient material. This outflow regulates star formation by e.g. inducing turbulence and heat…
APEX-CHAMP+ high-J CO observations of low-mass young stellar objects: IV. Mechanical and radiative feedback
Umut A. Yıldız, Lars E. Kristensen, Ewine F. van Dishoeck +14
During the embedded stage of star formation, bipolar molecular outflows and UV radiation from the protostar are important feedback processes. Our aim is to quantify the feedback, m…