Flybys in protoplanetary discs – II. Observational signatures

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...

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Published in:Monthly notices of the Royal Astronomical Society Vol. 491; no. 1; pp. 504 - 514
Main Authors: Cuello, Nicolás, Louvet, Fabien, Mentiplay, Daniel, Pinte, Christophe, Price, Daniel J, Winter, Andrew J, Nealon, Rebecca, Ménard, François, Lodato, Giuseppe, Dipierro, Giovanni, Christiaens, Valentin, Montesinos, Matías, Cuadra, Jorge, Laibe, Guillaume, Cieza, Lucas, Dong, Ruobing, Alexander, Richard
Format: Journal Article
Language:English
Published: Oxford University Press (OUP): Policy P - Oxford Open Option A 01.01.2020
Oxford University Press
Subjects:
Astrophysics - Astrophysics of Galaxies
Astrophysics - Earth and Planetary Astrophysics
Astrophysics - Solar and
Aérospatiale, astronomie & astrophysique
hydrodynamics
methods: numerical
Physical, chemical, mathematical & earth Sciences
Physique, chimie, mathématiques & sciences de la terre
planets and satellites: formation
protoplanetary discs
Sciences of the Universe
Space science, astronomy & astrophysics
Stellar Astrophysics
Astrophysics - Astrophysics of Galaxies
protoplanetary discs
Astrophysics - Earth and Planetary Astrophysics
hydrodynamics
methods: numerical
planets and satellites: formation
Astrophysics - Solar and Stellar Astrophysics
ISSN:0035-8711, 1365-2966, 1365-2966
Online Access:Get full text
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Summary: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).
Bibliography:scopus-id:2-s2.0-85079627971
ISSN:0035-8711
1365-2966
1365-2966
DOI:10.1093/mnras/stz2938