Results 131 to 140 of about 83,891 (346)

White dwarfs with a surface electrical charge distribution: equilibrium and stability

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
The equilibrium configuration and the radial stability of white dwarfs composed of charged perfect fluid are investigated. These cases are analyzed through the results obtained from the solution of the hydrostatic equilibrium equation. We regard that the
G. A. Carvalho   +3 more
doaj   +1 more source

A Multi-Survey Approach to White Dwarf Discovery

open access: yes, 2012
By selecting astrometric and photometric data from the Sloan Digital Sky Survey (SDSS), the L{\'e}pine & Shara Proper Motion North Catalog (LSPM-North), the Two Micron All Sky Survey (2MASS), and the USNO-B1.0 catalog, we use a succession of methods to ...
AlSayyad, Yusra   +6 more
core   +1 more source

The age of white dwarf companions

open access: yesJournal of Physics: Conference Series, 2009
4 pages, 2 figures, Proceedings to 16th European WD Workshop Meeting ...
S. Weston, Ralf Napiwotzki
openaire   +3 more sources

Do Consumers Trust Social Businesses? Effects of Corporate Social Responsibility Fit on Purchase Intention and Positive Word‐of‐Mouth Behavior

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT This research analyzed how perceived mission adherence (PMA) and perceived corporate social responsibility (CSR) fit influence consumer responses toward social businesses. No study has explored the role of CSR fit within social businesses, and limited CSR‐related research has integrated attribution theory with the theory of planned behavior ...
Ching Yin Ip
wiley   +1 more source

The neutrino emission due to plasmon decay and neutrino luminosity of white dwarfs

open access: yes, 2007
One of the effective mechanisms of neutrino energy losses in red giants, presupernovae and in the cores of white dwarfs is the emission of neutrino-antineutrino pairs in the process of plasmon decay. In this paper, we numerically calculate the emissivity
Braaten, E. M. Kantor, M. E. Gusakov
core   +1 more source

Corporate Social Responsibility or Strategic Opportunism? Evidence From High and New Technology Firms

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Corporate Social Responsibility (CSR) presents a dual nature in practice. Beyond its explicit ethical imperatives, it can be strategically instrumentalized to manage external pressures, shape public impression, and even divert attention from corporate misconduct. Acknowledging this complexity, this study investigates the conditions under which
Yang Deng, Assunta Di Vaio, Tze San Ong
wiley   +1 more source

Short Wavelength Limit of the Dynamic Matsubara Local Field Correction

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We investigate the short wavelength limit of the dynamic Matsubara local field correction G˜q,zl$$ \tilde{G}\left(\mathbf{q},{z}_l\right) $$ of the uniform electron gas based on direct ab initio path integral Monte Carlo (PIMC) results over an unprecedented range of wavenumbers, q≲20qF$$ q\lesssim 20{q}_{\mathrm{F}} $$, where qF$$ {q}_{\mathrm{
Tobias Dornheim   +3 more
wiley   +1 more source

Instantaneous Normal Modes of Yukawa Liquids

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT The instantaneous normal mode (INM) approach, which extends the normal mode description of collective excitations in solids to liquids, is applied to strongly coupled, three‐dimensional Yukawa liquids. Based on data from Langevin dynamics simulations, we compute the instantaneous normal modes across a wide range of coupling and screening ...
Tillman Keller, Hanno Kählert
wiley   +1 more source

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