activity
20062023
most citedPhotoevaporation of protoplanetary discs II: evolutionary models and observable properties

478 citations · 3.5k across the 54 of their papers we have counts for

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26 papers · 1 filter

astro-ph.EP2022

Dust dynamics in planet-forming discs in binary systems

Francesco Zagaria, Giovanni P. Rosotti, Richard D. Alexander +1

In multiple stellar systems interactions among the companion stars and their discs affect planet formation. In the circumstellar case tidal truncation makes protoplanetary discs sm…

astro-ph.EP2022★ 14 cited

Inward and outward migration of massive planets: moving towards a stalling radius

C. E. Scardoni, C. J. Clarke, G. P. Rosotti +3

Recent studies on the planet-dominated regime of Type II migration showed that, contrary to the conventional wisdom, massive planets can migrate outwards. Using `fixed-planet' simu…

astro-ph.EP2022★ 14 cited

Characteristics of small protoplanetary disc warps in kinematic observations

Alison K. Young, Richard Alexander, Giovanni Rosotti +1

Many circumstellar discs appear to have misaligned central regions that give rise to shadows seen in scattered light observations. Small warps ( misalignment) are probab…

astro-ph.EP2021★ 20 cited

Chemical signatures of a warped protoplanetary disc

Alison K. Young, Richard Alexander, Catherine Walsh +3

Circumstellar discs may become warped or broken into distinct planes if there is a stellar or planetary companion with an orbit that is misaligned with respect to the disc. There i…

astro-ph.EP2021★ 4 cited

An upper limit for the growth of inner planets?

Andrew J. Winter, Richard Alexander

The exotic range of known planetary systems has provoked an equally exotic range of physical explanations for their diverse architectures. However, constraining formation processes…

astro-ph.EP2021★ 31 cited

HD 143006: circumbinary planet or misaligned disc?

G. Ballabio, R. Nealon, R. D. Alexander +3

Misalignments within protoplanetary discs are now commonly observed, and features such as shadows in scattered light images indicate departure from a co-planar geometry. VLT/SPHERE…