Results 91 to 100 of about 2,088,463 (342)

Catalogue of Radial Velocities of Galaxies [PDF]

Symposium - International Astronomical Union, 1983
A catalogue of radial velocities of galaxies has been completed which lists all radial velocities published until the end of December, 1980, for galaxies in both the northern and the southern hemispheres.For each galaxy the catalogue provides R.A. and Declination, name(s) of the galaxy (NGC, IC, 3 CR, etc.), each known heliocentric radial velocity with
G. G. C. Palumbo, G. Vettolani, G. Tanzella-Nitti   +2 more
openaire   +2 more sources

Consolidate Overview of Ribonucleic Acid Molecular Dynamics: From Molecular Movements to Material Innovations

Advanced Engineering Materials, EarlyView.
Molecular dynamics simulations are advancing the study of ribonucleic acid (RNA) and RNA‐conjugated molecules. These developments include improvements in force fields, long‐timescale dynamics, and coarse‐grained models, addressing limitations and refining methods.
Kanchan Yadav, Iksoo Jang, Jong Bum Lee
wiley   +1 more source

Reconstructing Synoptic Maps of Solar Wind Radial Velocity between 20 and 60 R ⊙ Based on STEREO/HI1 Images

The Astrophysical Journal, 2023
Previously, we developed a correlation-aided reconstruction method to recognize and locate solar wind transients observed by the Heliospheric Imager-1 (HI1) on board the Solar Terrestrial Relations Observatory and then developed a technique to infer the ...
Xiaolei Li, Yuming Wang, Fang Shen, Yi Yang, Quanhao Zhang, Shaoyu Lyu   +5 more
doaj   +1 more source

Model and long-term coherent accumulation basic algorithm for the reflected signal with non-zero higher derivative range to radar target

Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2021
The purpose of the work was to substantiate a mathematical model of the signal reflected from moving radar target at the time of its observation, which determines the need to take into account the range migration and its derivatives up to the third order,
S. V. Kozlov, Le Van Cuong
doaj   +1 more source

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

Advanced Engineering Materials, EarlyView.
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram, Thomas Koch, Vasiliki-Maria Archodoulaki   +2 more
wiley   +1 more source

A Gaussian process framework for modelling stellar activity signals in radial velocity data [PDF]

, 2015
To date, the radial velocity (RV) method has been one of the most productive techniques for detecting and confirming extrasolar planetary candidates. Unfortunately, stellar activity can induce RV variations which can drown out or even mimic planetary ...
V. Rajpaul, S. Aigrain, Michael A. Osborne, S. Reece, S. Roberts   +4 more
semanticscholar   +1 more source

First Radial Velocity Results From the MINiature Exoplanet Radial Velocity Array (MINERVA) [PDF]

Publications of the Astronomical Society of the Pacific, 2019
The MINiature Exoplanet Radial Velocity Array (MINERVA) is a dedicated observatory of four 0.7m robotic telescopes fiber-fed to a KiwiSpec spectrograph. The MINERVA mission is to discover super-Earths in the habitable zones of nearby stars. This can be accomplished with MINERVA's unique combination of high precision and high cadence over long time ...
Maurice L. Wilson, Jason D. Eastman, Matthew A. Cornachione, Sharon X. Wang, Samson A. Johnson, David H. Sliski, William J. Schap III, Timothy D. Morton, John Asher Johnson, Nate McCrady, Jason T. Wright, Robert A. Wittenmyer, Peter Plavchan, Cullen H. Blake, Jonathan J. Swift, Michael Bottom, Ashley D. Baker, Stuart I. Barnes, Perry Berlind, Eric Blackhurst, Thomas G. Beatty, Adam S. Bolton, Bryson Cale, Michael L. Calkins, Ana Colón, Jon de Vera, Gilbert Esquerdo, Emilio E. Falco, Pascal Fortin, Juliana Garcia-Mejia, Claire Geneser, Steven R. Gibson, Gabriel Grell, Ted Groner, Samuel Halverson, John Hamlin, M. Henderson, J. Horner, Audrey Houghton, Stefaan Janssens, Graeme Jonas, Damien Jones, Annie Kirby, George Lawrence, Julien Andrew Luebbers, Philip S. Muirhead, Justin Myles, Chantanelle Nava, Kevin O Rivera-García, Tony Reed, Howard M. Relles, Reed Riddle, Connor Robinson, Forest Chaput de Saintonge, Anthony Sergi   +54 more
openaire   +5 more sources

X‐Ray Computed Tomography Quantifies Primary Phases and Reveals Crack Morphology in High‐Cycle Fatigue of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
Primary phases and a fatigue crack are studied in a forged blank of an aluminum alloy using synchrotron and laboratory X‐ray computed tomography. To image the crack, the fatigue test is interrupted, and a static tensile load is applied to open the crack.
Jakob Schröder, Ying Han, Tobias Fritsch, Bardia Hejazi, Alexander Ulbricht, Birgit Skrotzki, Giovanni Bruno   +6 more
wiley   +1 more source

Tribology of ZrC Coatings and Spherical Tips Acquired with Extraordinarily Stiff, Metal Atomic Force Microscopy Probes

Advanced Engineering Materials, EarlyView.
In this research, ZrC coatings are evaluated against various counterprobes at the microscale using novel super‐stiff atomic force microscopy cantilevers. The chemical composition of the coating is shown to be an important factor influencing coating hardness and Young's modulus, while surface roughness, counterprobe hardness, and surface energy are the ...
Piotr Jenczyk, Marcin Michałowski, Bogdan Warcholiński, Michał Milczarek, Adam Gilewicz   +4 more
wiley   +1 more source

THE RADIAL VELOCITY EXPERIMENT (RAVE): FIFTH DATA RELEASE [PDF]

, 2013
Data Release 5 (DR5) of the Radial Velocity Experiment (RAVE) is the fifth data release from a magnitude-limited ( ) survey of stars randomly selected in the Southern Hemisphere. The RAVE medium-resolution spectra ( ) covering the Ca-triplet region (8410–
M. Steinmetz, T. Zwitter, A. Siebert, F. Watson, K. Freeman, U. Munari, R. Campbell, M. Williams, G. Seabroke, R. Wyse, Q. Parker, O. Bienaymé, S. Roeser, B. Gibson, G. Gilmore, E. Grebel, A. Helmi, J. Navarro, D. Burton, C. Cass, J. Dawe, K. Fiegert, M. Hartley, K. Russell, W. Saunders, H. Enke, J. Bailin, J. Binney, J. Bland-Hawthorn, C. Boeche, W. Dehnen, D. Eisenstein, N. Evans, M. Fiorucci, J. Fulbright, O. Gerhard, U. Jauregi, A. Kelz, L. Mijović, I. Minchev, G. Parmentier, J. Peñarrubia, A. Quillen, M. Read, G. Ruchti, R. Scholz, A. Siviero, M. Smith, R. Sordo, L. Veltz, S. Vidrih, R. V. Berlepsch, B. Boyle, E. Schilbach   +53 more
semanticscholar   +1 more source