VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris★
dc.contributor.author | Hofmann, K-H | |
dc.contributor.author | Bensberg, A | |
dc.contributor.author | Schertl, D | |
dc.contributor.author | Weigelt, G | |
dc.contributor.author | Wolf, S | |
dc.contributor.author | Meilland, A | |
dc.contributor.author | Millour, F | |
dc.contributor.author | Waters, LBFM | |
dc.contributor.author | Kraus, S | |
dc.contributor.author | Ohnaka, K | |
dc.contributor.author | Lopez, B | |
dc.contributor.author | Petrov, RG | |
dc.contributor.author | Lagarde, S | |
dc.contributor.author | Berio, P | |
dc.contributor.author | Allouche, F | |
dc.contributor.author | Robbe-Dubois, S | |
dc.contributor.author | Jaffe, W | |
dc.contributor.author | Henning, T | |
dc.contributor.author | Paladini, C | |
dc.contributor.author | Schöller, M | |
dc.contributor.author | Mérand, A | |
dc.contributor.author | Glindemann, A | |
dc.contributor.author | Beckmann, U | |
dc.contributor.author | Heininger, M | |
dc.contributor.author | Bettonvil, F | |
dc.contributor.author | Zins, G | |
dc.contributor.author | Woillez, J | |
dc.contributor.author | Bristow, P | |
dc.contributor.author | Stee, P | |
dc.contributor.author | Vakili, F | |
dc.contributor.author | van Boekel, R | |
dc.contributor.author | Hogerheijde, MR | |
dc.contributor.author | Dominik, C | |
dc.contributor.author | Augereau, J-C | |
dc.contributor.author | Matter, A | |
dc.contributor.author | Hron, J | |
dc.contributor.author | Pantin, E | |
dc.contributor.author | Rivinius, T | |
dc.contributor.author | de Wit, W-J | |
dc.contributor.author | Varga, J | |
dc.contributor.author | Klarmann, L | |
dc.contributor.author | Meisenheimer, K | |
dc.contributor.author | Rosas, VG | |
dc.contributor.author | Burtscher, L | |
dc.contributor.author | Leftley, J | |
dc.contributor.author | Isbell, JW | |
dc.contributor.author | Yoffe, G | |
dc.contributor.author | Kokoulina, E | |
dc.contributor.author | Danchi, WC | |
dc.contributor.author | Cruzalèbes, P | |
dc.contributor.author | de Souza, AD | |
dc.contributor.author | Drevon, J | |
dc.contributor.author | Hocdé, V | |
dc.contributor.author | Kreplin, A | |
dc.contributor.author | Labadie, L | |
dc.contributor.author | Connot, C | |
dc.contributor.author | Nußbaum, E | |
dc.contributor.author | Lehmitz, M | |
dc.contributor.author | Antonelli, P | |
dc.contributor.author | Graser, U | |
dc.contributor.author | Leinert, C | |
dc.date.accessioned | 2022-06-20T09:42:11Z | |
dc.date.issued | 2022-02-03 | |
dc.date.updated | 2022-06-17T20:05:20Z | |
dc.description.abstract | Context. FS Canis Majoris (FS CMa, HD 45677) is an unclassified B[e] star surrounded by an inclined dust disk. The evolutionary stage of FS CMa is still debated. Perpendicular to the circumstellar disk, a bipolar outflow was detected. Infrared aperture-synthesis imaging provides us with a unique opportunity to study the disk structure. Aims. Our aim is to study the intensity distribution of the disk of FS CMa in the mid-infrared L and N bands. Methods. We performed aperture-synthesis imaging of FS CMa with the MATISSE instrument (Multi AperTure mid-Infrared SpectroScopic Experiment) in the low spectral resolution mode to obtain images in the L and N bands. We computed radiative transfer models that reproduce the L- and N-band intensity distributions of the resolved disks. Results. We present L- and N-band aperture-synthesis images of FS CMa reconstructed in the wavelength bands of 3.4-3.8 and 8.6-9.0 μm. In the L-band image, the inner rim region of an inclined circumstellar disk and the central object can be seen with a spatial resolution of 2.7 milliarcsec (mas). An inner disk cavity with an angular diameter of ~6 × 12 mas is resolved. The L-band disk consists of a bright northwestern (NW) disk region and a much fainter southeastern (SE) region. The images suggest that we are looking at the bright inner wall of the NW disk rim, which is on the far side of the disk. In the N band, only the bright NW disk region is seen. In addition to deriving the inclination and the inner disk radius, fitting the reconstructed brightness distributions via radiative transfer modelling allows one to constrain the innermost disk structure, in particular the shape of theinner disk rim. | en_GB |
dc.description.sponsorship | Science and Technology Facilities Council | en_GB |
dc.description.sponsorship | Agence Nationale de la Recheche (ANR) | en_GB |
dc.description.sponsorship | Agencia Nacional de Investigación y Desarrollo (ANID) | en_GB |
dc.description.sponsorship | Agencia Nacional de Investigación y Desarrollo (ANID) | en_GB |
dc.description.sponsorship | European Research Council | en_GB |
dc.description.sponsorship | European Research Council | en_GB |
dc.description.sponsorship | European Research Council | en_GB |
dc.description.sponsorship | Hungarian NKFIH OTKA | en_GB |
dc.description.sponsorship | European Research Council | en_GB |
dc.description.sponsorship | UNAM PAPIIT project IA | en_GB |
dc.description.sponsorship | CONACyT project | en_GB |
dc.description.sponsorship | FAPESP | en_GB |
dc.description.sponsorship | FAPESP | en_GB |
dc.description.sponsorship | NOVA, the Netherlands Research School for Astronomy | en_GB |
dc.format.extent | a81- | |
dc.identifier.citation | Vol. 658, article A81 | en_GB |
dc.identifier.doi | https://doi.org/10.1051/0004-6361/202141601 | |
dc.identifier.grantnumber | ST/V000721/1 | en_GB |
dc.identifier.grantnumber | ANR-15-IDEX-01 | en_GB |
dc.identifier.grantnumber | FONDECYT Regular grant 1180066 | en_GB |
dc.identifier.grantnumber | FONDECYT Regular grant 1210652 | en_GB |
dc.identifier.grantnumber | 639889 | en_GB |
dc.identifier.grantnumber | Advanced Grant Origins 83 24 28 | en_GB |
dc.identifier.grantnumber | 695099 | en_GB |
dc.identifier.grantnumber | K132406 | en_GB |
dc.identifier.grantnumber | 71615 | en_GB |
dc.identifier.grantnumber | 101220 | en_GB |
dc.identifier.grantnumber | 263975 | en_GB |
dc.identifier.grantnumber | 2019/02029-2 | en_GB |
dc.identifier.grantnumber | 2017/18191-8 | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/129986 | |
dc.identifier | ORCID: 0000-0001-6017-8773 (Kraus, S) | |
dc.identifier | ScopusID: 24481487500 (Kraus, S) | |
dc.language.iso | en | en_GB |
dc.publisher | EDP Sciences | en_GB |
dc.rights | © K.-H. Hofmann et al. 2022. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. | en_GB |
dc.subject | techniques: interferometric | en_GB |
dc.subject | techniques: image processing | en_GB |
dc.subject | circumstellar matter | en_GB |
dc.subject | stars: emission-line, Be | en_GB |
dc.subject | stars: imaging | en_GB |
dc.subject | stars: individual: FS CMa | en_GB |
dc.title | VLTI-MATISSE L- and N-band aperture-synthesis imaging of the unclassified B[e] star FS Canis Majoris★ | en_GB |
dc.type | Article | en_GB |
dc.date.available | 2022-06-20T09:42:11Z | |
dc.identifier.issn | 0004-6361 | |
exeter.article-number | ARTN A81 | |
dc.description | This is the final version. Available from EDP Sciences via the DOI in this record. | en_GB |
dc.identifier.eissn | 1432-0746 | |
dc.identifier.journal | Astronomy & Astrophysics | en_GB |
dc.relation.ispartof | Astronomy & Astrophysics, 658 | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0 | en_GB |
dcterms.dateAccepted | 2021-11-14 | |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2022-02-03 | |
rioxxterms.type | Journal Article/Review | en_GB |
refterms.dateFCD | 2022-06-20T09:30:11Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2022-06-20T09:42:17Z | |
refterms.panel | B | en_GB |
refterms.dateFirstOnline | 2022-02-03 |
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which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.