Spectroscopic sizing of interstellar icy grains with JWST
| hal.structure.identifier | Centre National de la Recherche Scientifique [CNRS] | |
| hal.structure.identifier | Université Paris-Saclay | |
| hal.structure.identifier | Institut des Sciences Moléculaires d'Orsay [ISMO] | |
| dc.contributor.author | DARTOIS, E. | |
| hal.structure.identifier | Physique des interactions ioniques et moléculaires [PIIM] | |
| hal.structure.identifier | Centre National de la Recherche Scientifique [CNRS] | |
| dc.contributor.author | NOBLE, Jennifer | |
| hal.structure.identifier | Dipartimento di Chimica "Giacomo Ciamician" | |
| dc.contributor.author | CASELLI, P. | |
| dc.contributor.author | FRASER, H. | |
| dc.contributor.author | JIMÉNEZ-SERRA, I. | |
| dc.contributor.author | MATÉ, B. | |
| dc.contributor.author | MCCLURE, M. | |
| dc.contributor.author | MELNICK, G. | |
| dc.contributor.author | PENDLETON, Y. | |
| hal.structure.identifier | Niigata University | |
| dc.contributor.author | SHIMONISHI, T. | |
| hal.structure.identifier | NOAA Space Environment Center | |
| dc.contributor.author | SMITH, Z. | |
| dc.contributor.author | STURM, J. | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| dc.contributor.author | TAILLARD, A. | |
| hal.structure.identifier | Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB] | |
| dc.contributor.author | WAKELAM, V. | |
| dc.contributor.author | BOOGERT, A. | |
| hal.structure.identifier | Universität Bern = University of Bern = Université de Berne [UNIBE] | |
| dc.contributor.author | DROZDOVSKAYA, M. | |
| dc.contributor.author | ERKAL, J. | |
| dc.contributor.author | HARSONO, D. | |
| dc.contributor.author | HERRERO, V. | |
| hal.structure.identifier | Queen Mary University of London [QMUL] | |
| dc.contributor.author | IOPPOLO, S. | |
| hal.structure.identifier | Laboratory for Astrophysics | |
| dc.contributor.author | LINNARTZ, H. | |
| hal.structure.identifier | Department of Chemistry [MIT Cambridge] | |
| hal.structure.identifier | National Radio Astronomy Observatory [Charlottesville] [NRAO] | |
| dc.contributor.author | MCGUIRE, B. | |
| dc.contributor.author | PEROTTI, G. | |
| dc.contributor.author | QASIM, D. | |
| dc.contributor.author | ROCHA, W. | |
| dc.date.accessioned | 2024-11-26T03:25:22Z | |
| dc.date.available | 2024-11-26T03:25:22Z | |
| dc.date.issued | 2024-01-09 | |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/203480 | |
| dc.description.abstractEn | Clouds of gas and dust in the Galaxy are nurseries in which stars and planetary systems are born. Cold dust grains grow icy mantles -by accretion, surface chemistry, and collision mechanisms -during their journey from the diffuse interstellar medium to protoplanetary disks. Our "Ice Age" JWST observations of the dense Chamaeleon I cloud reveal that this growth starts early, before the protostellar phase, significantly modifying the ice absorption band spectroscopic profiles. Spectral analysis confirms that the grains reach micron sizes, implying myriad changes in local microphysics, including mass transfer from small to large grains, reduction in the grain surface available for chemistry, and modification of the penetration and propagation of radiation fields. Deformation of the observed profiles complicates chemical abundance determination. Observing extensive icy growth in dense clouds quantitatively constrains the grain size evolution prior to star-and planet-formation. | |
| dc.language.iso | en | |
| dc.publisher | Nature Publishing Group | |
| dc.subject.en | Astrophysical dust | |
| dc.subject.en | Interstellar medium | |
| dc.subject.en | Laboratory astrophysics | |
| dc.title.en | Spectroscopic sizing of interstellar icy grains with JWST | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1038/s41550-023-02155-x | |
| dc.subject.hal | Physique [physics]/Astrophysique [astro-ph] | |
| dc.description.sponsorshipEurope | Linking chemistry and physics in the planet-forming zones of disks | |
| bordeaux.journal | Nature Astronomy | |
| bordeaux.page | 359-367 | |
| bordeaux.volume | 8 | |
| bordeaux.hal.laboratories | Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804 | * |
| bordeaux.issue | 3 | |
| bordeaux.institution | Université de Bordeaux | |
| bordeaux.institution | CNRS | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-04796693 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-04796693v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Astronomy&rft.date=2024-01-09&rft.volume=8&rft.issue=3&rft.spage=359-367&rft.epage=359-367&rft.au=DARTOIS,%20E.&NOBLE,%20Jennifer&CASELLI,%20P.&FRASER,%20H.&JIM%C3%89NEZ-SERRA,%20I.&rft.genre=article |
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