Results 31 to 40 of about 327,633 (295)

Analytic orbit propagation for transiting circumbinary planets

, 2015
The herein presented analytical framework fully describes the motion of coplanar systems consisting of a stellar binary and a planet orbiting both stars on orbital as well as secular timescales.
Eggl, Siegfried, Georgakarakos, Nikolaos
core   +2 more sources

Addressing Economic Insecurities Can Improve Patient‐Reported Outcomes in Lupus

Arthritis Care &Research, EarlyView.
Objective Economic insecurities, such as food, housing, transportation, and financial challenges, are modifiable risk factors and influence patient‐reported outcomes (PROs) in systemic lupus erythematosus (SLE). We examined the following: (1) associations between economic insecurities and PROs, and (2) the impact of screening and addressing economic ...
Jay Patel, Tripti Singh, Meredith Ingersoll, Shelby Gomez, Amanda Weber, Sarah E. Panzer, Sancia Ferguson, Christie M. Bartels, Shivani Garg   +8 more
wiley   +1 more source

Unstable Planetary Systems Emerging Out Of Gas Disks

, 2010
The discovery of over 400 extrasolar planets allows us to statistically test our understanding of formation and dynamics of planetary systems via numerical simulations.
Adams, Bryden, Chatterjee, Chiang, Currie, Duncan, D’Angelo, D’Angelo, Edward W. Thommes, Ford, Frederic A. Rasio, Goldreich, Hillenbrand, Jurić, Kokubo, Lee, Lodders, Masset, Matsuyama, Menou, Murray, Nagasawa, Narita, Raymond, Shakura, Sicilia-Aguilar, Soko Matsumura, Sourav Chatterjee, Tanigawa, Thommes, Winn, Wittenmyer, Wright, Wright   +33 more
core   +1 more source

Planet gaps in the dust layer of 3D proto-planetary disks: Observability with ALMA [PDF]

, 2013
Among the numerous known extrasolar planets, only a handful have been imaged directly so far, at large orbital radii and in rather evolved systems. The Atacama Large Millimeter/submillimeter Array (ALMA) will have the capacity to observe these wide ...
Gonzalez, Jean-François, Maddison, Sarah T., Ménard, François, Pinte, Christophe   +3 more
core   +3 more sources

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan, Rhena Wulf, Till M. J. Stadtmüller, Christos G. Aneziris, Tobias M. Fieback   +4 more
wiley   +1 more source

Cryptic geological histories accessed through entombed and matrix geochronometers in dykes

Communications Earth & Environment
Deep geology of ancient continental crust can be difficult to access, with direct observation restricted to limited exposures. The age and composition of hidden geology can be gleaned from indirect isotopic modelling or via detrital minerals within ...
Christopher L. Kirkland, Maximilian Dröllner, Raphael Quentin de Gromard, Bruno V. Ribeiro, Hugo K. H. Olierook, Michael Hartnady, Milo Barham, Janne Liebmann, Hugh Smithies, Andreas Zametzer   +9 more
doaj   +1 more source

Stability of Multiplanetary Systems in Star Clusters

, 2017
Most stars form in star clusters and stellar associated. To understand the roles of star cluster environments in shaping the dynamical evolution of planetary systems, we carry out direct $N$-body simulations of four planetary systems models in three ...
Cai, Maxwell Xu, Kouwenhoven, M. B. N., Spurzem, Rainer, Zwart, Simon F. Portegies   +3 more
core   +1 more source

Can Planets Influence the Horizontal Branch Morphology? [PDF]

, 1998
As stars which have planetary systems evolve along the red giant branch and expand, they interact with the close planets. The planets deposit angular momentum and energy into the red giant stars' envelopes, both of which are likely to enhance mass loss ...
Balbus A. S., Bondi H., Ferraro F. R., Han Z., Harpaz A., Livio M., Noam Soker, Paczynski B., Walker A. R.   +8 more
core   +2 more sources

Dynamical Habitability of Planetary Systems [PDF]

Astrobiology, 2010
The problem of the stability of planetary systems, a question that concerns only multiplanetary systems that host at least two planets, is discussed. The problem of mean motion resonances is addressed prior to discussion of the dynamical structure of the more than 350 known planets.
Dvorak, Rudolf, Pilat-Lohinger, Elke, Bois, Eric, Schwarz, Richard, Funk, Barbara, Beichman, Charles, Danchi, William, Eiroa, Carlos, Fridlund, Malcolm, Henning, Thomas, Herbst, Tom, Kaltenegger, Lisa, Lammer, Helmut, Léger, Alain, Liseau, René, Lunine, Jonathan, Paresce, Francesco, Penny, Alan, Quirrenbach, Andreas, Röttgering, Huub, Selsis, Franck, Schneider, Jean, Stam, Daphne, Tinetti, Giovanna, White, Glenn J.   +24 more
openaire   +4 more sources

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

Advanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost, Lionel Presmanes, Soléna Colin, Marie Vidal, Sophie Guillemet‐Fritsch   +4 more
wiley   +1 more source