Results 11 to 20 of about 73,704 (164)
Carbon In Protoplanetary Disks
, 2018 The carbon and oxygen content of the solids in protoplanetary disks plays an important role in defining the composition of giant planet atmospheres. I will discuss what we know about the distribution of carbonaceous material in the solar system and discuss potential processes influencing its radial distribution. I will also present modeling results for
Henning, Thomas +2 more
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Heating and cooling processes in disks* [PDF]
EPJ Web of Conferences, 2015 This chapter summarises current theoretical concepts and methods to determine the gas temperature structure in protoplanetary disks by balancing all relevant heating and cooling rates.
Woitke Peter
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Light Echoes of Protoplanetary Disks
The Astrophysical JournalLight echoes offer a means of studying protoplanetary disks, including their geometry and composition, even when they are not spatially resolved. We present a test of this approach applied specifically to optically thick, geometrically flared disks ...
Austin J. King, Benjamin C. Bromley
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Dust in protoplanetary disks: observations* [PDF]
EPJ Web of Conferences, 2015 Solid particles, usually referred to as dust, are a crucial component of interstellar matter and of planet forming disks surrounding young stars. Despite the relatively small mass fraction of ≈1% (in the solar neighborhood of our galaxy; this number may ...
Waters L.B.F.M.
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On the Dynamics of Protoplanetary Disks [PDF]
, 2018 Protoplanetary disks are disks of gas and dust orbiting young stars which form planetary systems. This thesis is devoted to understanding how gravitational interactions in different astrophysical situations effect the structure and dynamical evolution of protoplanetary disks, shaping the planetary systems the disks give birth to.
Zanazzi, John Jacob
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Chemistry in Protoplanetary Disks [PDF]
Chemical Reviews, 2013 This comprehensive review summarizes our current understanding of the evolution of gas, solids and molecular ices in protoplanetary disks. Key findings related to disk physics and chemistry, both observationally and theoretically, are highlighted.
Henning, Thomas, Semenov, Dmitry
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Photoprocesses in protoplanetary disks [PDF]
Faraday Discussions, 2006 Circumstellar disks are exposed to intense ultraviolet radiation from the young star. In the inner disks, the UV radiation can be enhanced by more than seven orders of magnitude compared with the average interstellar field, resulting in a physical and chemical structure that resembles that of a dense photon-dominated region (PDR). This intense UV field
van Dishoeck, E. F. +2 more
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On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]
, 2015 PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
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HNC IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2015 The distributions and abundances of small organics in protoplanetary disks are potentially powerful probes of disk physics and chemistry. HNC is a common probe of dense interstellar regions and the target of this study. We use the Submillimeter Array (SMA) to observe HNC 3--2 towards the protoplanetary disks around the T Tauri star TW Hya and the ...
Dawn Graninger +3 more
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SILICA IN PROTOPLANETARY DISKS [PDF]
The Astrophysical Journal, 2008 47 pages, 9 figures, to appear in the 1 January, 2009 issue of the Astrophysical ...
Sargent, B. A. +12 more
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