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96 papers · 1 filter
Asynchronous accretion can mimic diverse white dwarf pollutants II: water content
Marc G. Brouwers, Andrew M. Buchan, Amy Bonsor +3
Volatiles, notably water, are key to the habitability of rocky planets. The presence of water in planetary material can be inferred from the atmospheric oxygen abundances of pollut…
Dynamical mass measurements of two protoplanetary discs
G. Lodato, L. Rampinelli, E. Viscardi +8
ALMA observations of line emission from planet forming discs have demonstrated to be an excellent tool to probe the internal disc kinematics, often revealing subtle effects related…
Dynamics of Dusty Vortices II: Stability of 2D dust laden vortices
Francesco Lovascio, Sijme-Jan Paardekooper, Colin McNally
Vortices have long been speculated to play a role in planet formation, via the collection of dust in the pressure maxima that arise at the cores of vortices in protoplanetary discs…
Turbulent Dust-trapping Rings as Efficient Sites for Planetesimal Formation
Ziyan Xu, Xue-Ning Bai
Recent observations of protoplanetary disks (PPDs) in the sub-mm have revealed the ubiquity of annular substructures, indicative of pebble-sized dust particles trapped in turbulent…
Presolar stardust in asteroid Ryugu
Jens Barosch, Larry R. Nittler, Jianhua Wang +121
We have conducted a NanoSIMS-based search for presolar material in samples recently returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the detection…
Reference-star differential imaging on SPHERE/IRDIS
Chen Xie, Elodie Choquet, Arthur Vigan +14
Reference-star differential imaging (RDI) is a promising technique in high-contrast imaging that is thought to be more sensitive to exoplanets and disks than angular differential i…