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EPoS |
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EPoS Contribution
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JOYS: JWST Observations of Young protoStars
Henrik Beuther MPIA, Heidelberg, DE | |
| The JOYS program is a European MIRI guaranteed time project investigating the physical and chemical properties of protostars and their immediate environment over a broad mass range from low- to high-mass regions. JOYS studies the physical characteristics of embedded disks, accretion signatures, feedback from the young protostars on their environment, primordial jets and outflows as well as the chemical gas and ice constituents of the protostellar envelopes. These goals are achieved with MIRI IFU imaging between 5 and 28mu. We will outline the scope and goals of the project and present early results. To mention a few: Initial results show molecular emission (CO2, C2H2, CH4) towards central sources, potentially associated with the young disk around the protostar. Extended H2 and [FeII] emission reveals active outflows, and the ice spectra dissect several ice components. Potential accretion signatures are discussed. | |
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| Caption: JWST MIRI spectrum towards the high-was star-forming region IRAS23385. | |
| Collaborators: E.F. van Dishoeck L. Tychoniec C. Gieser M.L. van Gelder L. Francis W. R. M. Rocha and the JOYS team |
Key publication
Relevant topic(s): Accretion Collapse High-Mass SF |
| Relevant Big Question: What are the accretion rates onto high-mass protostars? | |