Results 71 to 80 of about 20,871 (275)

Free-floating planets in stellar clusters? [PDF]

, 2017
We have simulated encounters between planetary systems and single stars in various clustered environments. This allows us to estimate the fraction of systems liberated, the velocity distribution of the liberated planets, and the separation and ...
Bonnell, Ian A., Smith, Kester W.
core  

Interactions Between Moderate- and Long-Period Giant Planets: Scattering Experiments for Systems in Isolation and with Stellar Flybys

, 2012
The chance that a planetary system will interact with another member of its host star's nascent cluster would be greatly increased if gas giant planets form in situ on wide orbits.
Aaron C. Boley, Adams, Barranco, Boley, Boley, Borucki, Caselli, Chatterjee, Crida, Dodson-Robinson, Duquennoy, Eric B. Ford, Heggie, Jurić, Kley, Kratter, Lada, Lafrenière, Lin, Lissauer, Mamajek, Marcy, Matthew J. Payne, Michael, Miller-Ricci, Nagasawa, Ogilvie, Press, Proszkow, Raghavan, Siegler, Spiegel, Veras, Zakamska, Zhu   +34 more
core   +1 more source

Light Activated Induction of Cuproptosis in Resistant Cancer Cells Using Polymeric BODIPY Nanoparticles for Photoactivated Chemotherapy

Advanced Functional Materials, EarlyView.
This article presents a photo‐responsive nanoparticle platform that precisely triggers copper‐dependent cuproptotic cell death in (drug‐resistant) cancer cells. The system remains stable and inactive in the dark but releases cytotoxic species upon red‐light irradiation, achieving potent activity in drug‐resistant breast cancer cells.
Ricarda Zimmermann, Nicolás Montesdeoca, Johannes Karges   +2 more
wiley   +1 more source

A Neptune-mass Free-floating Planet Candidate Discovered by Microlensing Surveys

, 2018
Current microlensing surveys are sensitive to free-floating planets down to Earth-mass objects. All published microlensing events attributed to unbound planets were identified based on their short timescale (below two days), but lacked an angular ...
Albrow, M. D., Cha, S. -M., Chung, S. -J., Gould, A., Han, C., Hwang, K. -H., Jung, Y. K., Kim, D. -J., Kim, H. -W., Kim, S. -L., Kozlowski, S., Lee, C. -U., Lee, D. -J., Lee, Y., Mroz, Przemek, Park, B. -G., Pawlak, M., Pietrukowicz, P., Pogge, R. W., Poleski, R., Ryu, Y. -H., Shin, I. -G., Skowron, J., Soszynski, I., Szymanski, M. K., Udalski, A., Ulaczyk, K., Yee, J. C., Zhu, W.   +28 more
core   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Searching for Free-floating Planets with TESS: Results from Sectors 61–65

The Astronomical Journal
Though free-floating planets (FFPs) may outpopulate their bound counterparts in the terrestrial-mass range, they remain one of the least explored exoplanet demographics.
Michelle Kunimoto, William DeRocco, Nolan Smyth, Steve Bryson, B. Scott Gaudi   +4 more
doaj   +1 more source

Survival Rates of Planets in Open Clusters: the Pleiades, Hyades, and Praesepe clusters

, 2019
In clustered environments, stellar encounters can liberate planets from their host stars via close encounters. Although the detection probability of planets suggests that the planet population in open clusters resembles that in the field, only a few ...
Fujii, M. S., Hori, Y.
core   +1 more source

Dual‐Programmable Architected Magnetic Soft Materials: Tuning Mechano–Electric Responses by Inverse Design

Advanced Functional Materials, EarlyView.
ABSTRACT Materials that can deform, sense, and autonomously generate power in response to wireless magnetic fields, through both magnetic‐actuated shape transformation and charge generation, are an emerging focus in advanced functional materials research.
Zhi Zhao, Xiaojia Shelly Zhang
wiley   +1 more source

Distinct Rotational Evolution of Giant Planets and Brown Dwarf Companions

The Astronomical Journal
We present a rotational velocity ( $v\sin i$ ) survey of 32 stellar/substellar objects and giant planets using Keck/KPIC high-resolution spectroscopy, including 6 giant planets (2–7 M _Jup ) and 25 substellar/stellar companions (12–88 M _Jup ).
Chih-Chun Hsu, Jason J. Wang, Jerry W. Xuan, Yapeng Zhang, Jean-Baptiste Ruffio, Dimitri Mawet, Luke Finnerty, Katelyn Horstman, Julianne Cronin, Yinzi Xin, Ben Sappey, Daniel Echeverri, Nemanja Jovanovic, Ashley Baker, Randall Bartos, Geoffrey A. Blake, Benjamin Calvin, Sylvain Cetre, Jacques-Robert Delorme, Gregory W. Doppmann, Michael P. Fitzgerald, Quinn M. Konopacky, Joshua Liberman, Ronald A. López, Evan Morris, Jacklyn Pezzato, Tobias Schofield, Andrew Skemer, J. Kent Wallace, Ji Wang   +29 more
doaj   +1 more source

Ultracool dwarf legacy science with ESA's Euclid mission

EPJ Web of Conferences, 2013
Euclid is an medium-class ESA mission that will carry out a 5 year survey of the extragalactic sky. The science drivers for the survey are cosmological and extragalactic.
Martin E.L.
doaj   +1 more source