Show simple item record

dc.contributor.authorMesa, D.
dc.contributor.authorGinski, C.
dc.contributor.authorGratton, R.
dc.contributor.authorErtel, S.
dc.contributor.authorWagner, K.
dc.contributor.authorBonavita, M.
dc.contributor.authorFedele, D.
dc.contributor.authorMeyer, M.
dc.contributor.authorHenning, T.
dc.contributor.authorLanglois, M.
dc.contributor.authorGarufi, A.
dc.contributor.authorAntoniucci, S.
dc.contributor.authorClaudi, R.
dc.contributor.authorDefrère, D.
dc.contributor.authorDesidera, S.
dc.contributor.authorJanson, M.
dc.contributor.authorPawellek, N.
dc.contributor.authorRigliaco, E.
dc.contributor.authorSquicciarini, V.
dc.contributor.authorZurlo, A.
dc.contributor.authorBoccaletti, A.
dc.contributor.authorBonnefoy, M.
dc.contributor.authorCantalloube, F.
dc.contributor.authorChauvin, G.
dc.contributor.authorFeldt, M.
dc.contributor.authorHagelberg, J.
dc.contributor.authorHugot, E.
dc.contributor.authorLagrange, A.-M.
dc.contributor.authorLazzoni, C.
dc.contributor.authorMaurel, D.
dc.contributor.authorPerrot, C.
dc.contributor.authorPetit, C.
dc.contributor.authorRouan, D.
dc.contributor.authorVigan, A.
dc.date.accessioned2022-03-17T01:56:40Z
dc.date.available2022-03-17T01:56:40Z
dc.date.issued2022
dc.identifier.citationMesa, D., Ginski, C., Gratton, R., Ertel, S., Wagner, K., Bonavita, M., Fedele, D., Meyer, M., Henning, T., Langlois, M., Garufi, A., Antoniucci, S., Claudi, R., Defrère, D., Desidera, S., Janson, M., Pawellek, N., Rigliaco, E., Squicciarini, V., … Vigan, A. (2022). Signs of late infall and possible planet formation around DR Tau using VLT/SPHERE and LBTI/LMIRCam. Astronomy and Astrophysics.
dc.identifier.issn0004-6361
dc.identifier.doi10.1051/0004-6361/202142219
dc.identifier.urihttp://hdl.handle.net/10150/663547
dc.description.abstractContext. Protoplanetary disks around young stars often contain substructures like rings, gaps, and spirals that could be caused by interactions between the disk and forming planets. Aims. We aim to study the young (1-3 Myr) star DR Tau in the near-infrared and characterize its disk, which was previously resolved through submillimeter interferometry with ALMA, and to search for possible substellar companions embedded into it. Methods. We observed DR Tau with VLT/SPHERE both in polarized light (H broad band) and total intensity (in Y, J, H, and K spectral bands). We also performed L′ band observations with LBTI/LMIRCam on the Large Binocular Telescope (LBT). We applied differential imaging techniques to analyze both the polarized data, using dual beam polarization imaging, and the total intensity data, using angular and spectral differential imaging. Results. We found two previously undetected spirals extending north-east and south of the star, respectively. We further detected an arc-like structure north of the star. Finally a bright, compact and elongated structure was detected at a separation of 303 ± 10 mas and a position angle 21.2 ± 3.7 degrees, just at the root of the north-east spiral arm. Since this feature is visible both in polarized light and total intensity and has a blue spectrum, itis likely caused by stellar light scattered by dust. Conclusions. The two spiral arms are at different separations from the star, have very different pitch angles, and are separated by an apparent discontinuity, suggesting they might have a different origin. The very open southern spiral arm might be caused by infalling material from late encounters with cloudlets into the formation environment of the star itself. The compact feature could be caused by interaction with a planet in formation still embedded in its dust envelope and it could be responsible for launching the north-east spiral. We estimate a mass of the putative embedded object of the order of few MJup. © 2022 ESO.
dc.language.isoen
dc.publisherEDP Sciences
dc.rightsCopyright © ESO 2022.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectInstrumentation: adaptive optics
dc.subjectMethods: data analysis
dc.subjectPlanetary systems
dc.subjectStars: individual: DR Tau
dc.subjectTechniques: imaging spectroscopy
dc.titleSigns of late infall and possible planet formation around DR Tau using VLT/SPHERE and LBTI/LMIRCam
dc.typeArticle
dc.typetext
dc.contributor.departmentSteward Observatory, Department of Astronomy, University of Arizona
dc.identifier.journalAstronomy and Astrophysics
dc.description.noteImmediate access
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
dc.eprint.versionFinal published version
dc.source.journaltitleAstronomy and Astrophysics
refterms.dateFOA2022-03-17T01:56:40Z


Files in this item

Thumbnail
Name:
aa42219-21.pdf
Size:
3.956Mb
Format:
PDF
Description:
Final Published Version

This item appears in the following Collection(s)

Show simple item record