Results 71 to 80 of about 131,089 (321)

Gravitational-wave asteroseismology with fundamental modes from compact binary inspirals [PDF]

open access: yesNature Communications, 2019
Gravitational waves (GWs) from binary neutron stars encode unique information about ultra-dense matter through characterisic signatures associated with a variety of phenomena including tidal effects during the inspiral.
G. Pratten, P. Schmidt, T. Hinderer
semanticscholar   +1 more source

Comparing P-stars with Observations [PDF]

open access: yes, 2007
P-stars are compact stars made of up and down quarks in $\beta$-equilibrium with electrons in a chromomagnetic condensate. P-stars are able to account for compact stars as well as stars with radius comparable with canonical neutron stars.
Baade W.   +6 more
core   +3 more sources

Vector gauge boson radiation from compact binary systems in a gauged Lμ−Lτ scenario [PDF]

open access: yesPhysical Review D, 2019
The orbital period of the binary neutron star systems decrease due to mainly quadrupole gravitational radiation which agrees with the observation to within one percent. Other types of radiation such as ultralight scalar or pseudoscalar radiation, massive
T. K. Poddar, S. Mohanty, S. Jana
semanticscholar   +1 more source

Cognitive Behavioral Therapy for Youth With Childhood‐Onset Lupus: A Randomized Clinical Trial

open access: yesArthritis Care &Research, EarlyView.
Objective Our objective was to determine the feasibility and acceptability of the Treatment and Education Approach for Childhood‐Onset Lupus (TEACH), a six‐session cognitive behavioral intervention addressing depressive, fatigue, and pain symptoms, delivered remotely to individual youth with lupus by a trained interventionist.
Natoshia R. Cunningham   +29 more
wiley   +1 more source

Gravitational Waves from Compact Sources

open access: yes, 2005
We review sources of high-frequency gravitational waves, summarizing our current understanding of emission mechanisms, expected amplitudes and event rates.
Kokkotas, Kostas D.   +1 more
core   +3 more sources

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

Mass Transfer in Eccentric Orbits with Self-consistent Stellar Evolution

open access: yesThe Astrophysical Journal
We investigate Roche lobe overflow mass transfer (MT) in eccentric binary systems between stars and compact objects (COs), modeling the coupled evolution of both the star and the orbit due to eccentric MT (eMT) in a self-consistent framework.
Kyle Akira Rocha   +14 more
doaj   +1 more source

X-rays from Hot Subdwarfs [PDF]

open access: yes, 2015
Thanks to the high sensitivity of the instruments on board the XMM-Newton and Chandra satellites, it has become possible to explore the properties of the X-ray emission from hot subdwarfs.
La Palombara, Nicola, Mereghetti, Sandro
core   +3 more sources

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani   +2 more
wiley   +1 more source

A Compact Object with a K-type Star Companion in the Solar Neighborhood: A Wide Postcommon Envelope Binary with a White Dwarf Candidate

open access: yesThe Astrophysical Journal
Post-common envelope binaries (PCEBs) consisting of a white dwarf (WD) plus a main-sequence star can constrain current prescriptions of common envelope evolution (CEE) and calibrate theoretical models of binary formation and evolution. Most PCEBs studied
Jie Lin   +5 more
doaj   +1 more source

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