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dc.contributor.authorReiter, M.
dc.contributor.authorMorse, J.A.
dc.contributor.authorSmith, N.
dc.contributor.authorHaworth, T.J.
dc.contributor.authorKuhn, M.A.
dc.contributor.authorKlaassen, P.D.
dc.date.accessioned2024-01-24T05:44:56Z
dc.date.available2024-01-24T05:44:56Z
dc.date.issued2022-10-04
dc.identifier.citationReiter, M., Morse, J. A., Smith, N., Haworth, T. J., Kuhn, M. A., & Klaassen, P. D. (2022). Deep diving off the ‘Cosmic Cliffs’: previously hidden outflows in NGC 3324 revealed by JWST. Monthly Notices of the Royal Astronomical Society, 517(4), 5382-5405.
dc.identifier.issn0035-8711
dc.identifier.doi10.1093/mnras/stac2820
dc.identifier.urihttp://hdl.handle.net/10150/670696
dc.description.abstractWe present a detailed analysis of the protostellar outflow activity in the massive star-forming region NGC 3324, as revealed by new Early Release Observations (EROs) from the James Webb Space Telescope (JWST). Emission from numerous outflows is revealed in narrow-band images of hydrogen Paschen α (Paα) and molecular hydrogen. In particular, we report the discovery of 24 previously unknown outflows based on their H2 emission. We find three candidate driving sources for these H2 flows in published catalogues of young stellar objects (YSOs), and we identify 15 infrared point sources in the new JWST images as potential driving protostars. We also identify several Herbig-Haro (HH) objects in Paα images from JWST; most are confirmed as jets based on their proper motions measured in a comparison with previous Hubble Space Telescope (HST) Hα images. This confirmed all previous HST-identified HH jets and candidate jets, and revealed seven new HH objects. The unprecedented capabilities of JWST allow the direct comparison of atomic and molecular outflow components at comparable angular resolution. Future observations will allow quantitative analysis of the excitation, mass-loss rates, and velocities of these new flows. As a relatively modest region of massive star formation (larger than Orion but smaller than starburst clusters), NGC 3324 offers a preview of what star formation studies with JWST may provide. © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.language.isoen
dc.publisherOxford University Press
dc.rights© 2022 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectHerbig-Haro objects
dc.subjectHII regions
dc.subjectstars: formation
dc.subjectstars: jets
dc.subjectstars: protostars
dc.titleDeep diving off the 'Cosmic Cliffs': previously hidden outflows in NGC 3324 revealed by JWST
dc.typeArticle
dc.typetext
dc.contributor.departmentDepartment of Astronomy, University of Arizona
dc.identifier.journalMonthly Notices of the Royal Astronomical Society
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleMonthly Notices of the Royal Astronomical Society
refterms.dateFOA2024-01-24T05:44:56Z


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