Results 51 to 60 of about 394,560 (227)

Upper limits on CH3OH in the HD 163296 protoplanetary disk [PDF]

Astronomy & Astrophysics, 2019
Context. Methanol (CH3OH) is at the root of organic ice chemistry in protoplanetary disks. Its connection to prebiotic chemistry and its role in the chemical environment of the disk midplane make it an important target for disk chemistry studies. However,
M. Carney, M. Hogerheijde, V. Guzm'an, C. Walsh, K. Öberg, E. Fayolle, L. Cleeves, J. Carpenter, C. Qi   +8 more
semanticscholar   +1 more source

Scattered light mapping of protoplanetary disks

, 2016
High-contrast scattered light observations have revealed the surface morphology of several dozens of protoplanetary disks at optical and near-infrared wavelengths.
Avenhaus, H., Dominik, C., Garufi, A., Min, M., Mulders, G. D., Stolker, T.   +5 more
core   +1 more source

An ALMA Survey of CO isotopologue emission from Protoplanetary Disks in Chamaeleon I [PDF]

, 2017
The mass of a protoplanetary disk limits the formation and future growth of any planet. Masses of protoplanetary disks are usually calculated from measurements of the dust continuum emission by assuming an interstellar gas-to-dust ratio.
Apai, Daniel, Drabek-Maunder, Emily, Hendler, Nathan, Henning, Thomas, Herczeg, Gregory J., Long, Feng, Manara, Carlo F., Mohanty, Subhanjoy, Mulders, Gijs D., Pascucci, Ilaria, Testi, Leonardo   +10 more
core   +2 more sources

Midplane temperature and outer edge of the protoplanetary disk around HD 163296 [PDF]

Astronomy & Astrophysics, 2019
Knowledge of the midplane temperature of protoplanetary disks is one of the key ingredients in theories of dust growth and planet formation. However, direct measurement of this quantity is complicated, and often depends on the fitting of complex models ...
C. Dullemond, A. Isella, S. Andrews, Iuliia Skobleva, N. Dzyurkevich   +4 more
semanticscholar   +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., Ireland, Michael J., Kraus, Adam L., Martinache, Frantz   +3 more
core   +3 more sources

A Three-dimensional View of Turbulence: Constraints on Turbulent Motions in the HD 163296 Protoplanetary Disk Using DCO+ [PDF]

, 2017
Gas kinematics are an important part of the planet formation process. Turbulence influences planetesimal growth and migration from the scale of submicron dust grains through gas-giant planets.
K. Flaherty, A. Hughes, Sanaea C. Rose, J. Simon, J. Simon, C. Qi, S. Andrews, Á. Kóspál, Á. Kóspál, D. Wilner, E. Chiang, P. Armitage, X. Bai   +12 more
semanticscholar   +1 more source

Shadowing and multiple rings in the protoplanetary disk of HD 139614 [PDF]

Astronomy & Astrophysics, 2019
Context. Shadows in scattered light images of protoplanetary disks are a common feature and support the presence of warps or misalignments between disk regions.
G. Muro-Arena, M. Benisty, C. Ginski, C. Dominik, S. Facchini, M. Villenave, R. Boekel, G. Chauvin, A. Garufi, T. Henning, M. Janson, M. Keppler, A. Matter, F. Ménard, T. Stolker, A. Zurlo, P. Blanchard, D. Maurel, O. Moeller-Nilsson, C. Petit, A. Roux, A. Sevin, F. Wildi   +22 more
semanticscholar   +1 more source

The Empirical and Radiative Transfer Hybrid (EaRTH) Disk Model: Merging Analyses of Protoplanetary Dust Disk Mineralogy and Structure

The Astrophysical Journal
Our understanding of how exoplanets form and evolve relies on analyses of both the mineralogy of protoplanetary disks and their detailed structures; however, these key complementary aspects of disks are usually studied separately.
William Grimble, Joel Kastner, Christophe Pinte, Beth Sargent, David A. Principe, Annie Dickson-Vandervelde, Aurora Belén Aguayo, Claudio Caceres, Matthias R. Schreiber, Keivan G. Stassun   +9 more
doaj   +1 more source

Planet Formation in Binary Stars: The case of Gamma Cephei

, 2008
Over 30 planetary systems have been discovered to reside in binary stars. For small separations gravitational perturbation of the secondary star has a strong influence on the planet formation process.
Baruteau, Boss, Boss, Chambers, Cresswell, Crida, Desidera, Dvorak, Dvorak, Eggenberger, Eggenberger, Haghighipour, Hatzes, Heppenheimer, Heppenheimer, Jang-Condell, Kley, Kley, Konacki, Lubow, Masset, Mugrauer, Nelson, Nelson, Nelson, Neuhäuser, Paardekooper, Paardekooper, Papaloizou, Papaloizou, Papaloizou, Pfahl, Pierens, Pierens, Pierens, Portegies Zwart, R. P. Nelson, Takeda, Tanaka, Thébault, Thébault, Turrini, Turrini, van Leer, Verrier, W. Kley, Whitmire, Wu, Wu, Ziegler, Ziegler   +50 more
core   +2 more sources

CO destruction in protoplanetary disk midplanes: Inside versus outside the CO snow surface [PDF]

Astronomy & Astrophysics, 2018
Context. The total gas mass is one of the most fundamental properties of disks around young stars, because it controls their evolution and their potential to form planets.
A. Bosman, C. Walsh, E. V. van Dishoeck
semanticscholar   +1 more source