Results 141 to 150 of about 231,447 (368)

The MUCHFUSS photometric campaign

, 2018
Hot subdwarfs (sdO/Bs) are the helium-burning cores of red giants, which lost almost all of their hydrogen envelopes. This mass loss is often triggered by common envelope interactions with close stellar or even substellar companions. Cool companions like
Cordes, O., Geier, S., Gerber, R., Heber, U., Schaffenroth, V., Schneider, D., Ziegerer, E.   +6 more
core   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Rapid Change in the Orbital Period of the Remnant of Nova Scorpii AD 1437 (IGR J17014-4306)

The Astrophysical Journal
IGR J17014-4306 is the longest orbital period (12.8 hr) deep-eclipsing intermediate polar known, where a massive white dwarf (WD) accretes matter from its companion star via an accretion disk.
Lei Zang, Shengbang Qian, Li Zhang, Qibin Sun, Linfeng Chang, Berto Monard, Gordon Myers, Franz-Josef Hambsch   +7 more
doaj   +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

Hidden Binaries in Star-forming Regions

The Astrophysical Journal
A significant fraction of, and possibly all, stars form in binary or multiple systems. For solar-mass stars in the Galactic field, the distribution of orbital separations is log-normal over 7 orders of magnitude, from 10 ^−2  to 10 ^5 au.
Mary H. Rawcliffe, Nathan Griffiths-Janvier, Richard J. Parker   +2 more
doaj   +1 more source

Disks in close binary stars

Disks in close binaries offer great opportunities for testing and refining astrophysical models and are studied in this thesis in the context of dwarf novae and planet formation. Dwarf novae are a subclass of cataclysmic variables (CVs), which are close binary systems with separations on the order of one solar radius, consisting of a white dwarf ...
openaire   +2 more sources

Evolution of close neutron star binaries

The Astrophysical Journal, 1977
In binary systems consisting of two neutron stars, the orbit decays by gravitational radiation. A crude model shows that the less massive star may suffer either immediate tidal disruption or slow mass stripping when it reaches its Roche radius, depending on the initial masses and on the details of mass exchange or mass loss.
D. M. Eardley, J. P. A. Clark
openaire   +2 more sources

The Few-Body Problem, Close Binary Stars and Steller Associations [PDF]

, 1967
G. Worrall
openalex   +1 more source

Wafer Bonding Technologies for Microelectromechanical Systems and 3D ICs: Advances, Challenges, and Trends

Advanced Engineering Materials, EarlyView.
This review explores wafer bonding technologies, covering wafer preparation, activation methods, and bonding mechanisms. It compares direct and indirect bonding, highlights recent advancements and future trends, and examines applications in 3D integration and packaging.
Abdul Ahad Khan, Tuan‐Khoa Nguyen, Quang Thang Trinh, Nam‐Trung Nguyen, Dzung Viet Dao, Yong Zhu   +5 more
wiley   +1 more source

The Origin and Early Evolution of Close Binary Stars [PDF]

, 1968
I.W. Roxburgh
openalex   +1 more source