J/A+A/710/A6ivo://CDS.VizieR/J/A+A/710/A6CDSCanin A.Fevotte C.Dobigeon N.Van De Putte D.Onaka T.Berne O.2026-05-28T10:57:58Z2026-05-28T11:57:46ZCDS support team

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

cds-question@unistra.frinterstellar-mediuminfrared-astronomyThe Mid-Infrared Instrument (MIRI) is the imager and spectrograph covering wavelengths from 4.9 to 27.9um onboard the James Webb Space Telescope (JWST). The MIRI Medium-Resolution Spectrometer (MRS) consists of four integral field units (IFU) and two wheels with three rotation settings producing four spectral channels and three spectral sub-channels. The twelve resulting spectral data cubes have different fields of view, spatial, and spectral resolutions. The wavelength range of each cube partially overlaps with the neighboring bands, and the overlap regions typically show flux mismatches which have to be corrected by spectral stitching methods. Stitching methods aim to produce a single data cube incorporating the data of the individual sub-channels, which requires matching the spatial resolution and the flux discrepancies. We present Haute Couture, a novel stitching algorithm which uses non-negative matrix factorization (NMF) to perform a matrix completion, where the available MRS data cubes are treated as twelve sub-matrices of a larger incomplete matrix. Prior to matrix completion, we also introduce a novel pre-processing to homogenize the global intensities of the twelve cubes. Our pre-processing consists in jointly optimizing a set of global scale parameters that maximize the fit between the cubes where spectral overlap occurs. We apply our novel stitching method to JWST data obtained as part of the PDRs4All observing program of the Orion Bar, and produce a uniform cube reconstructed with the best spatial resolution over the full range of wavelengths.2026A&A...710A...6Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/710/A6CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/685/A74 : PDRs4All III. JWST/NIR view of the Orion Bar (Peeters+, 2024)J/A+A/685/A75 : PDRs4All IV. Orion Bar MRS template spectra (Chown+, 2024)J/A+A/701/A111 : PDRs4All XVI. Orion Bar template spectra (Van De Putte+, 2025https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/710/A6https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/710/A6http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/710/A6https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/710/A6https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/710/A6http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/710/A6GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/710/A6/list (Informations on datacube)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/710/A6/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/710/A6/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/710/A6/list?GETtext/xml+votable180.050000true83.83479-5.418190.0055555555555555566/21439https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/710/A6?format=asciiInfrareddefaultJ/A+A/710/A6/listInformations on datacuberecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Right Ascension of center (J2000)degpos.eq.ra;meta.mainDEJ2000Declination of center (J2000)degpos.eq.dec;meta.mainNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintNzNumber of slicesmeta.numberintbWAVELower value of WAVE intervalumem.wlfloatBWAVEUpper value of WAVE intervalumem.wlfloatdWAVEWAVE resolutionumspect.resolutiondoublesizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS file, in subdirectory fitsmeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fitschar