hydrodynamics; methods: numerical; planets and satellites: formation; protoplanetary discs; Astrophysics - Earth and Planetary Astrophysics; Astrophysics - Astrophysics of Galaxies; Astrophysics - Solar and; Stellar Astrophysics
Abstract :
[en] Tidal encounters in star clusters perturb discs around young protostars. In Cuello et al., we detailed the dynamical signatures of a stellar flyby in both gas and dust. Flybys produce warped discs, spirals with evolving pitch angles, increasing accretion rates, and disc truncation. Here, we present the corresponding observational signatures of these features in optical/near-infrared scattered light and (sub) millimetre continuum and CO line emission. Using representative prograde and retrograde encounters for direct comparison, we post-process hydrodynamical simulations with radiative transfer methods to generate a catalogue of multiwavelength observations. This provides a reference to identify flybys in recent near-infrared and submillimetre observations (e.g. RW Aur, AS 205, HV Tau and DO Tau, FU Ori, V2775 Ori, and Z CMa).
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Cuello, Nicolás; Pontifical Catholic University of Chile, Department of Astronomy and Astrophysics, Millennium Institute of Astrophysics, Chile, University of Leicester, Department of Physics and Astronomy
Louvet, Fabien; University of Chile, Department of Astronomy
Mentiplay, Daniel; Monash University, School of Astrophysics
Pinte, Christophe; Monash University, School of Astrophysics, Institute de Planetologie et d'Astrophysique de Grenoble
Price, Daniel J.; Monash University, School of Astrophysics
Winter, Andrew J.; University of Leicester, Department of Physics and Astronomy
Nealon, Rebecca; University of Leicester, Department of Physics and Astronomy
Ménard, François; Institute de Planetologie et d'Astrophysique de Grenoble
Lodato, Giuseppe; University of Milan, Department of Physics
Dipierro, Giovanni; University of Leicester, Department of Physics and Astronomy
Christiaens, Valentin ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR) ; Monash University, School of Astrophysics
Montesinos, Matías; Millennium Institute of Astrophysics, Chile, Valparaiso University, Department of Physics and Astronomy, CAS, National Astronomical Observatories
Cuadra, Jorge; Pontifical Catholic University of Chile, Department of Astronomy and Astrophysics, Millennium Institute of Astrophysics, Chile
Laibe, Guillaume; Observatoire de Lyon, Centre Recherche Astrophysique de Lyon
Cieza, Lucas; Diego Portales University, Chile
Dong, Ruobing; University of Victoria, Department of Physics and Astronomy
Alexander, Richard; Institute de Planetologie et d'Astrophysique de Grenoble
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