Results 21 to 30 of about 71,280 (209)

HNC IN PROTOPLANETARY DISKS [PDF]

open access: yesThe 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
openaire   +4 more sources

SILICA IN PROTOPLANETARY DISKS [PDF]

open access: yesThe Astrophysical Journal, 2008
47 pages, 9 figures, to appear in the 1 January, 2009 issue of the Astrophysical ...
Sargent, B. A.   +12 more
openaire   +2 more sources

VORTEX MIGRATION IN PROTOPLANETARY DISKS [PDF]

open access: yesThe Astrophysical Journal, 2010
13 pages, 13 figures, accepted for publication in ...
Paardekooper, Sijme-Jan   +2 more
openaire   +6 more sources

Demographics of Protoplanetary Disks: A Simulated Population of Edge-on Systems

open access: yesThe Astrophysical Journal, 2023
The structure of protoplanetary disks plays an essential role in planet formation. A disk that is highly inclined, or “edge-on,” is of particular interest since its geometry provides a unique opportunity to study the disk’s vertical structure and radial ...
Isabel Angelo   +11 more
doaj   +1 more source

The Inner Regions of Protoplanetary Disks [PDF]

open access: yesAnnual Review of Astronomy and Astrophysics, 2010
To understand how planetary systems form in the dusty disks around pre-main-sequence stars, a detailed knowledge of the structure and evolution of these disks is required. Although this is reasonably well understood for the regions of the disk beyond about 1 AU, the structure of these disks inward of 1 AU remains a puzzle. This is partly because it is
Dullemond, C. P., Monnier, J. D.
openaire   +2 more sources

A numerical approach to model chemistry of complex organic molecules in a protoplanetary disk

open access: yesOpen 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

Kinematic Evidence of an Embedded Protoplanet in HD 142666 Identified by Machine Learning

open access: yesThe Astrophysical Journal, 2023
Observations of protoplanetary disks have shown that forming exoplanets leave characteristic imprints on the gas and dust of the disk. In the gas, these forming exoplanets cause deviations from Keplerian motion, which can be detected through molecular ...
J. P. Terry   +3 more
doaj   +1 more source

Gas line observations of disks*

open access: yesEPJ Web of Conferences, 2015
Gas represents the bulk of the mass content in protoplanetary disks. It is therefore observations of gas that can provide important information of physical structure and chemical evolution of disks.
Dionatos Odysseas
doaj   +1 more source

CHEMICAL PROCESSES IN PROTOPLANETARY DISKS [PDF]

open access: yesThe Astrophysical Journal, 2010
24 pages, 13 figures, accepted for publication in ...
Walsh, C, Millar, TJ, Nomura, H
openaire   +5 more sources

Interferometry and the study of protoplanetary disks [PDF]

open access: yesEPJ Web of Conferences, 2015
Interferometry offers access to scales that are unresolvable using single dish telescopes, which is especially important when investigating objects with small angular sizes, such as protoplanetary disks. This Chapter introduces the concept of interferometry, and describes the basic aspects of interferometric observations when considering long (i.e. sub-
Ilee, John David, Greaves, Jane Sophia
openaire   +4 more sources

Home - About - Disclaimer - Privacy