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 postprocess hydrodynamical simulations with radiative transfer methods to generate a catalogue of multiwavelength observations. This provides a reference to identify flybys in recent nearinfrared and submillimetre observations (e.g. RW Aur, AS 205, HV Tau and DO Tau, FU Ori, V2775 Ori, and Z CMa).
Flybys in protoplanetary discs – II. Observational signatures / N. Cuello, F. Louvet, D. Mentiplay, C. Pinte, D.J. Price, A.J. Winter, R. Nealon, F. Ménard, G. Lodato, G. Dipierro, V. Christiaens, M. Montesinos, J. Cuadra, G. Laibe, L. Cieza, R. Dong, R. Alexander. - In: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY. - ISSN 0035-8711. - 491:1(2020 Jan), pp. 504-514.
Flybys in protoplanetary discs – II. Observational signatures
G. Lodato;
2020
Abstract
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 postprocess hydrodynamical simulations with radiative transfer methods to generate a catalogue of multiwavelength observations. This provides a reference to identify flybys in recent nearinfrared and submillimetre observations (e.g. RW Aur, AS 205, HV Tau and DO Tau, FU Ori, V2775 Ori, and Z CMa).File | Dimensione | Formato | |
---|---|---|---|
Cuello2019.pdf
accesso aperto
Tipologia:
Publisher's version/PDF
Dimensione
3 MB
Formato
Adobe PDF
|
3 MB | Adobe PDF | Visualizza/Apri |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.