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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Vydané v:	Monthly notices of the Royal Astronomical Society Ročník 491; číslo 1; s. 504 - 514
Hlavní autori:	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
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	Oxford University Press (OUP): Policy P - Oxford Open Option A 01.01.2020 Oxford University Press
Predmet:	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
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Popis
Shrnutí:	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).
Bibliografia:	scopus-id:2-s2.0-85079627971
ISSN:	0035-8711 1365-2966 1365-2966
DOI:	10.1093/mnras/stz2938