Multiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI

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dc.citation.firstpage2653
dc.citation.issueNumber2
dc.citation.journalTitleMonthly Notices of the Royal Astronomical Society
dc.citation.lastpage2668
dc.citation.volumeNumber531
dc.contributor.authorChahine, Layal
dc.contributor.authorCeccarelli, Cecilia
dc.contributor.authorDe Simone, Marta
dc.contributor.authorChandler, Claire J
dc.contributor.authorCodella, Claudio
dc.contributor.authorPodio, Linda
dc.contributor.authorLópez-Sepulcre, Ana
dc.contributor.authorSakai, Nami
dc.contributor.authorLoinard, Laurent
dc.contributor.authorBouvier, Mathilde
dc.contributor.authorCaselli, Paola
dc.contributor.authorVastel, Charlotte
dc.contributor.authorBianchi, Eleonora
dc.contributor.authorCuello, Nicolás
dc.contributor.authorFontani, Francesco
dc.contributor.authorJohnstone, Doug
dc.contributor.authorSabatini, Giovanni
dc.contributor.authorHanawa, Tomoyuki
dc.contributor.authorZhang, Ziwei E
dc.contributor.authorAikawa, Yuri
dc.contributor.authorBusquet, Gemma
dc.contributor.authorCaux, Emmanuel
dc.contributor.authorDurán, Aurore
dc.contributor.authorHerbst, Eric
dc.contributor.authorMénard, François
dc.contributor.authorSegura-Cox, Dominique
dc.contributor.authorSvoboda, Brian
dc.contributor.authorBalucani, Nadia
dc.contributor.authorCharnley, Steven
dc.contributor.authorDulieu, François
dc.contributor.authorEvans, Lucy
dc.contributor.authorFedele, Davide
dc.contributor.authorFeng, Siyi
dc.contributor.authorHama, Tetsuya
dc.contributor.authorHirota, Tomoya
dc.contributor.authorIsella, Andrea
dc.contributor.authorJímenez-Serra, Izaskun
dc.contributor.authorLefloch, Bertrand
dc.contributor.authorMaud, Luke T
dc.contributor.authorMaureira, María José
dc.contributor.authorMiotello, Anna
dc.contributor.authorMoellenbrock, George
dc.contributor.authorNomura, Hideko
dc.contributor.authorOba, Yasuhiro
dc.contributor.authorOhashi, Satoshi
dc.contributor.authorOkoda, Yuki
dc.contributor.authorOya, Yoko
dc.contributor.authorPineda, Jaime
dc.contributor.authorRimola, Albert
dc.contributor.authorSakai, Takeshi
dc.contributor.authorShirley, Yancy
dc.contributor.authorTesti, Leonardo
dc.contributor.authorViti, Serena
dc.contributor.authorWatanabe, Naoki
dc.contributor.authorWatanabe, Yoshimasa
dc.contributor.authorZhang, Yichen
dc.contributor.authorYamamoto, Satoshi
dc.date.accessioned2024-08-22T15:28:50Z
dc.date.available2024-08-22T15:28:50Z
dc.date.issued2024
dc.description.abstractThe exploration of outflows in protobinary systems presents a challenging yet crucial endeavour, offering valuable insights into the dynamic interplay between protostars and their evolution. In this study, we examine the morphology and dynamics of jets and outflows within the IRAS 4A protobinary system. This analysis is based on ALMA observations of SiO(5–4), H2CO(30, 3–20, 3), and HDCO(41, 4–31, 3) with a spatial resolution of ∼150 au. Leveraging an astrochemical approach involving the use of diverse tracers beyond traditional ones has enabled the identification of novel features and a comprehensive understanding of the broader outflow dynamics. Our analysis reveals the presence of two jets in the redshifted emission, emanating from IRAS 4A1 and IRAS 4A2, respectively. Furthermore, we identify four distinct outflows in the region for the first time, with each protostar, 4A1 and 4A2, contributing to two of them. We characterize the morphology and orientation of each outflow, challenging previous suggestions of bends in their trajectories. The outflow cavities of IRAS 4A1 exhibit extensions of 10 and 13 arcsec with position angles (PA) of 0° and -12°, respectively, while those of IRAS 4A2 are more extended, spanning 18 and 25 arcsec with PAs of 29° and 26°. We propose that the misalignment of the cavities is due to a jet precession in each protostar, a notion supported by the observation that the more extended cavities of the same source exhibit lower velocities, indicating they may stem from older ejection events.
dc.identifier.citationChahine, L., Ceccarelli, C., De Simone, M., Chandler, C. J., Codella, C., Podio, L., López-Sepulcre, A., Sakai, N., Loinard, L., Bouvier, M., Caselli, P., Vastel, C., Bianchi, E., Cuello, N., Fontani, F., Johnstone, D., Sabatini, G., Hanawa, T., Zhang, Z. E., … Yamamoto, S. (2024). Multiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI. Monthly Notices of the Royal Astronomical Society, 531(2), 2653–2668. https://doi.org/10.1093/mnras/stae1320
dc.identifier.digitalstae1320
dc.identifier.doihttps://doi.org/10.1093/mnras/stae1320
dc.identifier.urihttps://hdl.handle.net/1911/117706
dc.language.isoeng
dc.publisherOxford University Press
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleMultiple chemical tracers finally unveil the intricate NGC 1333 IRAS 4A outflow system. FAUST XVI
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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