Results 91 to 100 of about 69,486 (315)
X‐ray imaging methods for multiscale characterization of batteries
X‐ray imaging is revolutionizing battery research by offering multiscale insights into structure, composition, and chemistry, from micrometers to nanometers. Operando imaging captures real‐time changes during cycling, revealing dynamic processes and localized effects inaccessible through traditional methods.
Sebastian Kunze+7 more
wiley +1 more source
Maximum mass ratio of am CVn-type binary systems and maximum white dwarf mass in ultra-compact x-ray binaries (addendum - Serb. Astron. J. No. 183 (2011), 63) [PDF]
We recalculated the maximum white dwarf mass in ultra-compact X-ray binaries obtained in an earlier paper (Arbutina 2011), by taking the effects of super-Eddington accretion rate on the stability of mass transfer into account.
Arbutina B.
doaj +1 more source
Comparison of White Dwarf Mass Determinations [PDF]
White dwarf masses can be determined in several ways. Here we compare masses obtained from Balmer line spectroscopy with those derived from trigonometric parallax measurements for an ensemble of cool hydrogen-atmosphere white dwarfs.
arxiv
White dwarf cooling sequences and cosmochronology [PDF]
The evolution of white dwarfs is a simple gravothermal process. This means that their luminosity function, i.e. the number of white dwarfs per unit bolometric magnitude and unit volume as a function of bolometric magnitude, is a monotonically increasing function that decreases abruptly as a consequence of the finite age of the Galaxy. The precision and
arxiv +1 more source
Magnetars and white dwarf pulsars [PDF]
The anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) are a class of pulsars understood as neutron stars (NSs) with super strong surface magnetic fields, namely [Formula: see text][Formula: see text]G, and for that reason are known as magnetars.
Manuel Malheiro+2 more
openaire +3 more sources
Abstract The production of Carica papaya L. in Kenya is seriously affected by the Moroccan watermelon mosaic virus and lack of improved varieties leading to the importation of expensive seeds for the resource‐scarce farmers. To curb these challenges, new papaya hybrid lines were recently selected and bred, but their growth traits and performance ...
Janet Chepng’etich Kosgei+4 more
wiley +1 more source
Seed dispersal selection pressures may cause morphological differences in cone structure and seed traits of large‐seeded pine trees. We investigated the cone, seed, and scale traits of four species of animal‐dispersed pine trees to explore the ...
Man‐Yu Zhang+2 more
doaj +1 more source
Hydrogen Line Shapes in Plasmas with Large Magnetic Fields
We report on hydrogen line shape calculations in the presence of an external magnetic field, at conditions such that the quadratic Zeeman effect is important.
Joël Rosato
doaj +1 more source
The thermal properties and neutrino emissivity of matter in the dense, degenerate cores of white dwarfs, together with efficient heat transport through the high-density envelopes of these stars, affect the theoretical white dwarf luminosity function.
openaire +1 more source
SPIN AND MAGNETISM OF WHITE DWARFS [PDF]
The magnetism and rotation of white dwarf (WD) stars are investigated in relation to a hydromagnetic dynamo operating in the progenitor during shell burning phases. The downward pumping of angular momentum in the convective envelope, in combination with the absorption of a planet or tidal spin-up from a binary companion, can trigger strong dynamo ...
Yevgeni Kissin, Christopher Thompson
openaire +3 more sources