Results 31 to 40 of about 399,848 (263)
Planets opening dust gaps in gas disks [PDF]
, 2004 We investigate the interaction of gas and dust in a protoplanetary disk in the presence of a massive planet using a new two-fluid hydrodynamics code. In view of future observations of planet-forming disks we focus on the condition for gap formation in ...
Bryden +16 more
core +3 more sources
Kinematic detection of a planet carving a gap in a protoplanetary disk [PDF]
Nature Astronomy, 2019 We still do not understand how planets form or why extrasolar planetary systems are so different from our own Solar System. However, the past few years have dramatically changed our view of the disks of gas and dust around young stars.
C. Pinte +14 more
semanticscholar +1 more source
The First Detection of 13C17O in a Protoplanetary Disk: A Robust Tracer of Disk Gas Mass [PDF]
Astrophysical Journal, 2019 Measurements of the gas mass are necessary to determine the planet formation potential of protoplanetary disks. Observations of rare CO isotopologues are typically used to determine disk gas masses; however, if the line emission is optically thick this ...
A. Booth +6 more
semanticscholar +1 more source
Protoplanetary Disk Rings and Gaps across Ages and Luminosities [PDF]
Astrophysical Journal, 2019 Since the discovery of the multiring structure of the HL Tau disk, ALMA data suggest that the dust continuum emission of many, if not all, protoplanetary disks consists of rings and gaps, no matter their spectral type or age.
N. van der Marel +4 more
semanticscholar +1 more source
Effect of dust grain porosity on the appearance of protoplanetary disks [PDF]
, 2014 We theoretically analyze protoplanetary disks consisting of porous dust grains. In the analysis of observations of protoplanetary disks the dust phase is often assumed to consist of spherical grains, allowing one to apply the Mie scattering formalism ...
Kirchschlager, F., Wolf, S.
core +1 more source
The origin of s-process isotope heterogeneity in the solar protoplanetary disk [PDF]
Nature Astronomy, 2019 Rocky asteroids and planets display nucleosynthetic isotope variations that are attributed to the heterogeneous distribution of stardust from different stellar sources in the solar protoplanetary disk.
M. Ek +3 more
semanticscholar +1 more source
Ionization and heating by X-rays and cosmic rays*
EPJ Web of Conferences, 2015 High-energy radiation from the central T Tauri and protostars plays an important role in shaping protoplanetary disks and influences their evolution. Such radiation, in particular X-rays and extreme-ultraviolet (EUV) radiation, is predominantly generated
Güdel Manuel
doaj +1 more source
The Role of Multiplicity in Disk Evolution and Planet Formation [PDF]
, 2011 The past decade has seen a revolution in our understanding of protoplanetary disk evolution and planet formation in single star systems. However, the majority of solar-type stars form in binary systems, so the impact of binary companions on ...
Hillenbrand, Lynne A. +3 more
core +3 more sources
ALMA Observations of Polarization from Dust Scattering in the IM Lup Protoplanetary Disk [PDF]
Astrophysical Journal, 2018 We present 870 μm ALMA observations of polarized dust emission toward the Class II protoplanetary disk IM Lup. We find that the orientation of the polarized emission is along the minor axis of the disk, and that the value of the polarization fraction ...
C. L. H. Hull +11 more
semanticscholar +1 more source
A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk
Open Astronomy, 2022 Multiphase astrochemical modeling presents a numerical challenge especially for the simulation of objects with the wide range of physical parameters such as protoplanetary disks.
Kiskin Mikhail Yu. +2 more
doaj +1 more source