Results 101 to 110 of about 1,010,215 (374)

TOI-4600 b and c: Two Long-period Giant Planets Orbiting an Early K Dwarf

The Astrophysical Journal Letters, 2023
We report the discovery and validation of two long-period giant exoplanets orbiting the early K dwarf TOI-4600 ( V = 12.6, T = 11.9), first detected using observations from the Transiting Exoplanet Survey Satellite (TESS) by the TESS Single Transit ...
Ismael Mireles, Diana Dragomir, Hugh P. Osborn, Katharine Hesse, Karen A. Collins, Steven Villanueva, Allyson Bieryla, David R. Ciardi, Keivan G. Stassun, Mallory Harris, Jack J. Lissauer, Richard P. Schwarz, Gregor Srdoc, Khalid Barkaoui, Arno Riffeser, Kim K. McLeod, Joshua Pepper, Nolan Grieves, Vera Maria Passegger, Solène Ulmer-Moll, Joseph E. Rodriguez, Dax L. Feliz, Samuel Quinn, Andrew W. Boyle, Michael Fausnaugh, Michelle Kunimoto, Pamela Rowden, Andrew Vanderburg, Bill Wohler, Jon M. Jenkins, David W. Latham, George R. Ricker, Sara Seager, Joshua N. Winn   +33 more
doaj   +1 more source

The Hunt for Exomoons with Kepler (HEK): II. Analysis of Seven Viable Satellite-Hosting Planet Candidates

, 2013
From the list of 2321 transiting planet candidates announced by the Kepler Mission, we select seven targets with favorable properties for the capacity to dynamically maintain an exomoon and present a detectable signal.
Bakos, Gáspár Á., Buchhave, Lars A., Hartman, Joel, Kipping, David M., Nesvorny, David, Schmitt, Allan R.   +5 more
core   +1 more source

First‐Principles Modeling of Solid Solution Softening and Hardening Effects in Al–Mg–Zr–Si Aluminum Alloys

Advanced Engineering Materials, EarlyView.
The role of various alloying elements in face‐centered cubic aluminum on the barrier of a Shockley partial dislocation during its motion is presented. The study aims to understand how alloying atoms such as Mg, Si, and Zr affect the energy landscape for dislocation motion, thus influencing the solid solution hardening and softening in aluminum, which ...
Inna Plyushchay, Zhengqing Wei, Nebahat Bulut, Sibylle Gemming   +3 more
wiley   +1 more source

The K2 and TESS Synergy. III. Search and Rescue of the Lost Ephemeris for K2's First Planet

The Astronomical Journal
K2-2 b/HIP 116454 b, the first exoplanet discovery by K2 during its Two-Wheeled Concept Engineering Test, is a sub-Neptune (2.5 ± 0.1 R _⊕ , 9.7 ± 1.2 M _⊕ ) orbiting a relatively bright ( K _S = 8.03) K-dwarf star on a 9.1 day period. Unfortunately, due
Erica Thygesen, Joseph E. Rodriguez, Zoë L. de Beurs, Andrew Vanderburg, John H. Livingston, Jonathon Irwin, Alexander Venner, Michael Cretignier, Karen A. Collins, Allyson Bieryla, David Charbonneau, Ian J. M. Crossfield, Xavier Dumusque, John Kielkopf, David W. Latham, Michael Werner   +15 more
doaj   +1 more source

Research on the Impact of Driverless Car Technology Development on Future Urban Rail Transit

Chengshi guidao jiaotong yanjiu
［Objective］ The possible impact of the development of driverless car technology on future urban rail transit is explored, and the role of driverless cars in urban transportation systems as well as their impact on the existing urban transportation ...
GE Shiping
doaj   +1 more source

Structural Transitions of Satellite Tobacco Mosaic Virus Particles

Virology, 2001
Satellite tobacco mosaic virus (STMV) can undergo at least two physical transitions that significantly alter its mechanical and structural characteristics. At high pH the 17-nm STMV particles expand radially by about 5 A to yield particles having diameters of about 18 nm.
Kuznetsov, Yurii G, Larson, Steven B, Day, John, Greenwood, Aaron, McPherson, Alexander   +4 more
openaire   +4 more sources

Hinode Calibration for Precise Image Co-alignment between SOT and XRT (November 2006 -- April 2007)

, 2007
To understand the physical mechanisms for activity and heating in the solar atmosphere, the magnetic coupling from the photosphere to the corona is an important piece of information from the Hinode observations, and therefore precise positional alignment
DeLuca, Edward E., Ichimoto, Kiyoshi, Kano, Ryohei, Katsukawa, Yukio, Lundquist, Loraine L., Matsuzaki, Keiichi, Minesugi, Kenji, Sakao, Taro, Shimizu, Toshifumi, Shine, Richard A., Soma, Mitsuru, Tarbell, Theodore D., Tsuneta, Saku, Weber, Mark A.   +13 more
core   +1 more source

Ground-based photometry of the 21-day Neptune HD106315c [PDF]

, 2017
Space-based transit surveys such as K2 and TESS allow the detection of small transiting planets with orbital periods beyond 10 days. Few of these warm Neptunes are currently known around stars bright enough to allow for detailed follow-up observations ...
Bayliss, D., Blanco-Cuaresma, S., Bouchy, F., Ehrenreich, D., Giles, H., Lendl, M., Marmier, M., Turner, O. D., Udry, S.   +8 more
core   +1 more source

A Simulative Approach for the Prediction of Mesoscale Residual Stress Fields in Solution‐Strengthened Ferritic Ductile Iron

Advanced Engineering Materials, EarlyView.
This study presents a 3D representative volume element‐based simulation approach to predict mesoscopic residual stress and strain fields in silicon solid solution‐strengthened ductile cast iron. By modeling phase transformation kinetics with an enhanced Johnson–Mehl–Avrami–Kolmogorov model, the effects of varying cooling rates on residual stresses are ...
Lutz Horbach, Oliver Schenk, Valérian Iss, Ali Rajaei, Jiali Zhang, Felix Weber, Christoph Broeckmann   +6 more
wiley   +1 more source

Direct Electron Detection Electron Energy‐Loss Spectroscopy: Speeding Up 2D Analytical In Situ Transmission Electron Microscopy for Aluminum Alloys

Advanced Engineering Materials, EarlyView.
Scanning transmission electron microscopy imaging techniques are an essential tool to document dynamic developments, such as precipitation in aluminum alloys, during in situ heating experiments using transmission electron microscopy. However, in many cases, chemical information is required to interpret complex nanoscale processes.
Evelin Fisslthaler, Martina Dienstleder, Judith Lammer, Moritz Theissing, Daniel Knez   +4 more
wiley   +1 more source