Results 31 to 40 of about 186,944 (198)

The Plutino Population: An Abundance of Contact Binaries [PDF]

open access: yesThe Astronomical Journal, 2018
Abstract We observed 12 Plutinos over two separated years with the 4.3 m Lowell’s Discovery Channel Telescope. Here, we present the first light-curve data for those objects. Three of them (2014 JL80, 2014 JO80, and 2014 JQ80) display a large light-curve amplitude explainable by a single elongated object, but they are most likely caused ...
Audrey Thirouin, Scott S. Sheppard
openaire   +2 more sources

Contact Binaries of Spectral Type O [PDF]

open access: yesSymposium - International Astronomical Union, 1979
The eclipsing binaries UW CMa, AO Cas, and V729 Cyg have been systems of great interest for over fifty years. The light curves are complex and suffer significant changes on a time scale of months, but the primary attraction of these systems is that both components have O-type spectra; thus they present us with some of the few possibilities for direct ...
Kam-Ching Leung, Donald P. Schneider
openaire   +1 more source

OBSERVED PROPERTIES OF CONTACT BINARY SYSTEMS

open access: yesOdessa Astronomical Publications, 2017
A group of close eclipsing systems, which continues to pose a challenge in many subjects of modern astrophysics, is that of contact binaries. In this study, using the most recent observational data of a large sample of such systems, a review concerning ...
A. Kalimeris, H. Rovithis-Livaniou
doaj   +1 more source

Contact Binary Stars [PDF]

open access: yesInternational Astronomical Union Colloquium, 1983
Abstract:Ultraviolet and X-ray surveys of the W Ursae Majoris type stars are reviewed. These systems exhibit extended coronas and transition regions that are confined close to the optically determined surfaces. Correlations of X-ray activity with period or rotational velocity indicate a turn-over or saturation of emission at the short periods or high ...
openaire   +1 more source

Study of Shear Behavior of Binary Mixtures by DEM Simulation of Biaxial Test in the Membrane Boundary Condition

open access: yesFrontiers in Physics, 2021
This paper aims to study the shear behavior of binary particles with irregular shapes by discrete element method simulations of the biaxial test in the membrane boundary condition.
Kai Wu   +4 more
doaj   +1 more source

The Binary Contact Path Process

open access: yesThe Annals of Probability, 1983
We study some $\{0, 1, \cdots\}^{z^d}$ valued Markov interactions $\eta_t$ called contact path processes. These are similar to branching random walks, in that the normalized size process starting from a singleton is a martingale which converges to a limit $M_\infty$.
openaire   +2 more sources

Disk Comtact Networks in a Binary Disk System by Photoelasticity [PDF]

open access: yes, 2002
Disk contact networks in binary disk systems under compression were measured by using photoelasticity. Two types of acrylic resin cylinders with diameters of 8 mm or 10mm and a height of 10 mm were used as binary disks, which were packed at random into ...
平田, 隆幸   +7 more
core  

Characterization and evaluation of carbon nanotube Bucky-Paper membranes for direct contact membrane distillation

open access: yes, 2010
Self-supporting carbon nanotube (CNT) Bucky-Papers have unique structural and surface properties which can be utilised in many applications. In this work we characterised pure self-supporting CNT membranes, where CNTs were held together only by Van der ...
Sears, Kallista   +8 more
core   +1 more source

The evolution of binary stars into contact states [PDF]

open access: yesSpace Science Reviews, 1989
AbstractGood-quality empirical results on 62 short-period binary stars recently summarised by Hilditch & Bell (1987) and Hilditch, King & McFarlane (1988) are discussed in terms of evolutionary paths from detached to semi-detached and contact states.
openaire   +1 more source

On the properties of contact binary stars

open access: yes, 2004
We have compiled a catalogue of light curve solutions of contact binary stars. It contains the results of 159 light curve solutions. The properties of contact binary stars were studied using the catalogue data. 
As is well known since Lucy's (
P. Klagyivik, Sz. Csizmadia
core   +1 more source

Home - About - Disclaimer - Privacy