This HTML5 document contains 98 embedded RDF statements represented using HTML+Microdata notation.

The embedded RDF content will be recognized by any processor of HTML5 Microdata.

Subject Item

n2:w

rdf:type

bibo:Article rdac:C10001

dcterms:isPartOf

n23:w

dcterms:subject

n8:methodsdataanalysis n8:starsindividualdrtau n8:planetarysystems n8:techniquesimagingspectroscopy n8:instrumentationadaptiveoptics n11:planetsandplanetarysystems

dcterms:title

Signs of late infall and possible planet formation around DR Tau using VLT/SPHERE and LBTI/LMIRCam

dcterms:date

2022-01-01

rdaw:P10072

n21:print n21:web

vivo:relatedBy

n6:5 n6:29 n6:3 n6:23 n6:27 n6:10 n6:12 n6:1 n6:9 n6:7 n6:8 n6:22 n6:25 n6:19 n6:21 n6:16 n6:18 n6:13 n6:14 n6:4 n6:6 n6:33 n6:34 n6:30 n6:32 n6:26 n6:28 n6:24 n6:31 n6:2 n6:20 n6:15 n6:17 n6:11

marcrel:aut

n2:vigana n2:ginskic n2:grattonr n2:henningt n2:jansonm n9:person n10:person n12:person n13:person n2:chauving n2:meyerm n2:perrotc n2:rouand n14:person n2:claudir n2:defrered n2:desideras n2:lazzonic n15:person n16:id n2:boccalettia n2:bonnefoym n2:hugote n2:lagrangeam n2:maureld n2:mesad n2:ertels n2:fedeled n2:garufia n2:hagelbergj n2:zurloa n2:pawellekn n2:petitc n2:rigliacoe n2:wagnerk n24:person n25:id n2:antoniuccis n2:bonavitam n2:cantalloubef n2:feldtm n2:langloism n26:person n2:squicciariniv

dcterms:abstract

Context. 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.

hub:articleType

n18:researcharticle

hub:publisher-id

aa42219-21

dcterms:dateCopyrighted

2022-01-01

dcterms:rights

© ESO 2022

dcterms:rightsHolder

ESO

hub:isPartOfThisJournal

n22:w