Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk

Utilizing the James Webb Space Telescope (JWST), the Atacama Large Millimeter/submillimeter Array (ALMA), and the Very Large Array (VLA), we present high angular resolution (0 06–0 42), multiwavelength (4 μm–3 cm) observations of the VLA 1623-2417 protostellar system to characterize the origin, morp...

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Autores: Forbrich, Jan, Girart, Josep M., Hoare, Melvin G., Hernández Garnica, Ricardo, Jiménez-Serra, Izaskun, Loinard, Laurent, Ordóñez-Toro, Jazmín, Podio, Linda, Radley, Isaac C., Busquet Rico, Gemma, Ilee, John D., Liu, Hauyu Baobab, Pineda, Jaime E., Pontoppidan, Klaus M., Macías, Enrique, Maureira, María José, Bianchi, Eleonora, Bourke, Tyler L., Codella, Claudio
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/225004
Acceso en línea:https://hdl.handle.net/2445/225004
Access Level:acceso abierto
Palabra clave:Formació d'estels
Astrofísica
Galàxies
Star formation
Astrophysics
Galaxies
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spelling Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled DiskForbrich, JanGirart, Josep M.Hoare, Melvin G.Hernández Garnica, RicardoJiménez-Serra, IzaskunLoinard, LaurentOrdóñez-Toro, JazmínPodio, LindaRadley, Isaac C.Busquet Rico, GemmaIlee, John D.Liu, Hauyu BaobabPineda, Jaime E.Pontoppidan, Klaus M.Macías, EnriqueMaureira, María JoséBianchi, EleonoraBourke, Tyler L.Codella, ClaudioFormació d'estelsAstrofísicaGalàxiesStar formationAstrophysicsGalaxiesUtilizing the James Webb Space Telescope (JWST), the Atacama Large Millimeter/submillimeter Array (ALMA), and the Very Large Array (VLA), we present high angular resolution (0 06–0 42), multiwavelength (4 μm–3 cm) observations of the VLA 1623-2417 protostellar system to characterize the origin, morphology and, properties of the continuum emission. JWST observations at 4.4 μm reveal outflow cavities for VLA 1623 A and, for the first time, VLA 1623 B, as well as scattered light from the upper layers of the VLA 1623 W disk. We model the millimeter-centimeter spectral energy distributions to quantify the relative contributions of dust and ionized gas emission, calculate dust masses, and use spectral index maps to determine where optical depth hinders this analysis. In general, all objects appear to be optically thick down to ∼90 GHz, show evidence for significant amounts (tens to hundreds of M<sub>⊕</sub>) of large (>1 mm) dust grains, and are dominated by ionized gas emission for frequencies ≲15 GHz. In addition, we find evidence of unsettled millimeter dust in the inclined disk of VLA 1623 B possibly attributed to instabilities within the circumstellar disk, adding to the growing catalog of unsettled Class 0/I disks. Our results represent some of the highest-resolution observations possible with current instrumentation, particularly in the case of the VLA. However, our interpretation is still limited at low frequencies (≲22 GHz) and thus motivates the need for next-generation interferometers operating at centimeter wavelengths.Institute of Physics (IOP)2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/225004Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.3847/1538-4357/adb0b9Astrophysical Journal, 2025, vol. 981, num.2https://doi.org/10.3847/1538-4357/adb0b9(c) American Astronomical Society, 2025info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2250042026-05-27T06:46:51Z
dc.title.none.fl_str_mv Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
title Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
spellingShingle Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
Forbrich, Jan
Formació d'estels
Astrofísica
Galàxies
Star formation
Astrophysics
Galaxies
title_short Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
title_full Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
title_fullStr Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
title_full_unstemmed Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
title_sort Characterizing the Multiple Protostellar System VLA 1623-2417 with JWST, ALMA, and VLA: Outflow Origins, Dust Growth, and an Unsettled Disk
dc.creator.none.fl_str_mv Forbrich, Jan
Girart, Josep M.
Hoare, Melvin G.
Hernández Garnica, Ricardo
Jiménez-Serra, Izaskun
Loinard, Laurent
Ordóñez-Toro, Jazmín
Podio, Linda
Radley, Isaac C.
Busquet Rico, Gemma
Ilee, John D.
Liu, Hauyu Baobab
Pineda, Jaime E.
Pontoppidan, Klaus M.
Macías, Enrique
Maureira, María José
Bianchi, Eleonora
Bourke, Tyler L.
Codella, Claudio
author Forbrich, Jan
author_facet Forbrich, Jan
Girart, Josep M.
Hoare, Melvin G.
Hernández Garnica, Ricardo
Jiménez-Serra, Izaskun
Loinard, Laurent
Ordóñez-Toro, Jazmín
Podio, Linda
Radley, Isaac C.
Busquet Rico, Gemma
Ilee, John D.
Liu, Hauyu Baobab
Pineda, Jaime E.
Pontoppidan, Klaus M.
Macías, Enrique
Maureira, María José
Bianchi, Eleonora
Bourke, Tyler L.
Codella, Claudio
author_role author
author2 Girart, Josep M.
Hoare, Melvin G.
Hernández Garnica, Ricardo
Jiménez-Serra, Izaskun
Loinard, Laurent
Ordóñez-Toro, Jazmín
Podio, Linda
Radley, Isaac C.
Busquet Rico, Gemma
Ilee, John D.
Liu, Hauyu Baobab
Pineda, Jaime E.
Pontoppidan, Klaus M.
Macías, Enrique
Maureira, María José
Bianchi, Eleonora
Bourke, Tyler L.
Codella, Claudio
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Formació d'estels
Astrofísica
Galàxies
Star formation
Astrophysics
Galaxies
topic Formació d'estels
Astrofísica
Galàxies
Star formation
Astrophysics
Galaxies
description Utilizing the James Webb Space Telescope (JWST), the Atacama Large Millimeter/submillimeter Array (ALMA), and the Very Large Array (VLA), we present high angular resolution (0 06–0 42), multiwavelength (4 μm–3 cm) observations of the VLA 1623-2417 protostellar system to characterize the origin, morphology and, properties of the continuum emission. JWST observations at 4.4 μm reveal outflow cavities for VLA 1623 A and, for the first time, VLA 1623 B, as well as scattered light from the upper layers of the VLA 1623 W disk. We model the millimeter-centimeter spectral energy distributions to quantify the relative contributions of dust and ionized gas emission, calculate dust masses, and use spectral index maps to determine where optical depth hinders this analysis. In general, all objects appear to be optically thick down to ∼90 GHz, show evidence for significant amounts (tens to hundreds of M<sub>⊕</sub>) of large (>1 mm) dust grains, and are dominated by ionized gas emission for frequencies ≲15 GHz. In addition, we find evidence of unsettled millimeter dust in the inclined disk of VLA 1623 B possibly attributed to instabilities within the circumstellar disk, adding to the growing catalog of unsettled Class 0/I disks. Our results represent some of the highest-resolution observations possible with current instrumentation, particularly in the case of the VLA. However, our interpretation is still limited at low frequencies (≲22 GHz) and thus motivates the need for next-generation interferometers operating at centimeter wavelengths.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/225004
url https://hdl.handle.net/2445/225004
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/adb0b9
Astrophysical Journal, 2025, vol. 981, num.2
https://doi.org/10.3847/1538-4357/adb0b9
dc.rights.none.fl_str_mv (c) American Astronomical Society, 2025
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Astronomical Society, 2025
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Institute of Physics (IOP)
publisher.none.fl_str_mv Institute of Physics (IOP)
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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