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

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

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:	Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:	Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:	oai:recercat.cat: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)2025202520252025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion26 p.application/pdfhttps://hdl.handle.net/2445/225004Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció 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:recercat.cat:2445/2250042026-05-29T05:05:01Z
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 2025 2025 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	26 p. 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:Recercat. Dipósit de la Recerca de Catalunya instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str	Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str	Recercat. Dipósit de la Recerca de Catalunya
collection	Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score	15,811543

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

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