Results 61 to 70 of about 210,786 (294)

Structure in the ε Eridani Debris Disk

The Astrophysical Journal, 2005
New submillimeter images have been obtained of the dust disk around the nearby K2 V star e Eridani, with the total data set now spanning 5 yr. These images show the distribution of dusty debris generated by comet collisions, reflecting clearing and perturbations by planets, and may give insights to early conditions in the solar system.
Greaves, J. S., Holland, W. S., Wyatt, M. C., Dent, W. R. F., Robson, E. I., Coulson, I. M., Jenness, T., Moriarty-Schieven, G. H., Davis, G. R., Butner, H. M., Gear, W. K., Dominik, C., Walker, H. J.   +12 more
openaire   +1 more source

Collisional Grooming of Debris Disks [PDF]

AIP Conference Proceedings, 2009
5 pages, Conference proceedings, "Exoplanets and Disks: Their Formation and Diversity" Kailua-Kona, Hawaii, 9-12 March 2009.
Marc J. Kuchner, Christopher C. Stark, Tomonori Usuda, Motohide Tamura, Miki Ishii   +4 more
openaire   +2 more sources

Tandem Duplication‐Driven Neofunctionalization of UDP‐Glycosyltransferases Shapes the Diversification of Triterpenoid Saponins in the Cucurbitaceae

Advanced Science, EarlyView.
We present a chromosome‐level genome assembly of Siraitia grosvenorii and, through comparative genomics, uncover a conserved UGT73 tandem array driving triterpenoid saponin diversification in Cucurbitaceae. Crystalized SgUGT73AM30 further reveals the regioselectivity mechanism underlying its catalytic activity.
Guangyi Wang, Mengmeng Li, Xuehui Dai, Yanchen Zhang, Yuhan Wu, Zhaotao Yan, Chenfei Tian, Hongkai Fan, Haili Liu, Xiaowei Zhang, Yiming Yang, Jiayu Lu, Yuwei Sun, Yong Wang   +13 more
wiley   +1 more source

Massive Debris Disks May Hinder Secular Stirring by Planetary Companions: An Analytic Proof of Concept

The Astrophysical Journal
Debris disks or exo-Kuiper belts, detected through their thermal or scattered emission from their dusty components, are ubiquitous around main-sequence stars.
Antranik A. Sefilian
doaj   +1 more source

Debris disks modeling and characterization: a case study approach to identifying debris disk morphology and asymmetry

Dodson-Robinson, Sarah E.According to the Catalog of Circumstellar Disks, 323 circumstellar disks have been resolved. What these observations show is that each disk presents its own challenge in terms of modeling and characterization, speaking to the ...
Yea, Inbok
core   +1 more source

Cold Debris Disks as Strategic Targets for the 2020s [PDF]

, 2019
Cold debris disks ...
Moro-Martín, Amaya, Sivramakrishnan, Anand, Ygouf, Marie, Mazoyer, Johan, Choquet, Élodie, Debes, John, Hines, Dean, Mennesson, Bertrand, Duchêne, Gaspard, Chen, Christine, Dodson-Robinson, Sally, Kalas, Paul, Girard, Julien, Millar-Blanchaer, Max A., Lisse, Carey M., Debes, John H., Stark, Chris, Douglas, Ewan S., Mawet, Dimitri, Currie, Thayne, Arriaga, Pauline, Faramaz, Virginie C., Wang, Jason   +22 more
core   +1 more source

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

Advanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang, Dingshun Yan, Yong Zhang, Zhiming Li   +3 more
wiley   +1 more source

Giant Impacts and Debris Disk Morphology

The Astrophysical Journal, 2023
Certain debris disks have nonaxisymmetric shapes in scattered light which are unexplained. The appearance of a disk depends on how its constituent Keplerian ellipses are arranged.
Joshua W. Jones, Eugene Chiang, Gaspard Duchêne, Paul Kalas, Thomas M. Esposito   +4 more
doaj   +1 more source

On the solar system—debris disk connection [PDF]

Proceedings of the International Astronomical Union, 2007
AbstractThis paper emphasizes the connection between solar and extra-solar debris disks: how models and observations of the Solar System are helping us understand the debris disk phenomenon, and vice versa, how debris disks are helping us place our Solar System into context.
openaire   +2 more sources

Cost estimate for clean up and debris removal

, 2020
Title from PDF caption (viewed on March 3, 2022)."The Labor Day Fires constitute the biggest and most expensive disaster in Oregon history. The current total cost estimate for debris clean up is $622 million (hazard tress and ash and debris on private ...

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