J/A+A/673/A121ivo://CDS.VizieR/J/A+A/673/A121doi:10.26093/cds/vizier.36730121CDSBeuther H.van Dishoeck E.F.Tychoniec L.Gieser C.Kavanagh P.J.,Perotti G.Gelder M.L.vanKlaassen P.Caratti o Garatti A.Francis L.,Rocha W.R.M.Slavicinska K.Ray T.Justtanont K.Linnartz H.,Waelkens C.Colina L.Greve T.Guedel M.Henning T.Lagage P.-O.,Vandenbussche B.Oestlin G.Wright G.2024-11-06T20:03:56Z2023-05-18T16:28:04ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frinfrared-sourcesstar-forming-regionsinfrared-astronomyspectroscopyUnderstanding the earliest stages of star formation, and setting that into context with the general cycle of matter in the interstellar medium, is a central aspect of research with the James Webb Space Telescope (JWST). The JWST program JOYS (JWST Observations of Young protoStars) aims at characterizing the physical and chemical properties of young high- and low-mass star-forming regions, in particular the unique mid-infrared diagnostics of the warmer gas and solid-state components. We present early results from the high-mass star formation region IRAS 23385+6053. The JOYS program uses the Mid-Infrared Instrument (MIRI) Medium Resolution Spectrometer (MRS) with its Integral Field Unit (IFU) to investigate a sample of high- and low-mass star-forming protostellar systems. The full 5 to 28um MIRI MRS spectrum of IRAS 23385+6053 shows a plethora of interesting features. While the general spectrum is typical for an embedded protostar, we see many atomic and molecular gas lines boosted by the higher spectral resolution and sensitivity compared to previous space missions. Furthermore, ice and dust absorption features are also present. Here, we focus on the continuum emission, outflow tracers like the H2(0-0)S(7), [FeII](^4^F_9/2_-^6^D_9/2_) and [NeII](^2^P_1/2_-^2^P_3/2_) lines as well as the potential accretion tracer Humphreys {alpha} HI(7-6). The short-wavelength MIRI data resolve two continuum sources A and B, where mid-infrared source A is associated with the main mm continuum peak. The combination of mid-infrared and mm data reveals a young cluster in its making. Combining the mid-infrared outflow tracer H_2_, [FeII] and [NeII] with mm SiO data shows a complex interplay of at least three molecular outflows driven by protostars in the forming cluster. Furthermore, the Humphreys line is detected at a 3-4{sigma} level towards the mid-infrared sources A and B. Following Rigliaco et al. (2015), one can roughly estimate both accretion luminosities and corresponding accretion rates between ~2.6x10^-6^ and ~0.9x10^-4^M_{sun}_/yr. This is discussed in the context of the observed outflow rates. The analysis of the MIRI MRS observations for this young high-mass star-forming region reveals connected outflow and accretion signatures. Furthermore, they outline the enormous potential of JWST to boost our understanding of the physical and chemical processes during star formation.2023A&A...673A.121Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/673/A121CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/673/A121https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/673/A121http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/673/A121https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/673/A121https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/673/A121http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/673/A121GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/673/A121/list (List of fits images)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/673/A121/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/673/A121/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/673/A121/list?GETtext/xml+votable180.050000true355.2266661.174440.0055555555555555566/14299https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/673/A121?format=asciiInfrareddefaultJ/A+A/673/A121/listList of fits imagesDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitscharJ/A+A/673/A121/listspList of spectrarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintspShow the spectrummeta.ref.urlcharFileNameName of the spectrum file in subdirectory spmeta.id;meta.filecharTitleTitle of the filemeta.title;meta.filechar