Results 131 to 140 of about 2,034,344 (399)
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT This study presents a comparative evaluation of phosphate adsorption on pristine ZIF‐8 and Fe3O4‐doped ZIF‐8 (Fe3O4/ZIF‐8), a hybrid adsorbent combining high surface area with magnetic separability. Structural integrity and composition were confirmed using SEM, XRD, FTIR, and XPS.
Edward Hartman Ernest +10 more
wiley +1 more source
A Gravitational-wave-detectable Candidate Type Ia Supernova Progenitor
The Astrophysical JournalType Ia supernovae (SNe Ia), critical for studying cosmic expansion, arise from thermonuclear explosions of white dwarfs, but their precise progenitor pathways remain unclear.
Emma T. Chickles +39 more
doaj +1 more source
White Dwarfs in Globular Clusters [PDF]
International Astronomical Union Colloquium, 1989 Surrounding the galaxy,with an aloofness appropriate to their great age,the globular clusters have played a starry role in the development of much of modern astronomy. In particular,they continue to be vital laboratories for testing our ideas of stellar evolution (Renzini and Fusi Pecci 1988).
G. G. Fahlman, H. B. Richer
openaire +1 more source
Applications in Plant Sciences, EarlyView.Abstract Premise As the sister clade to angiosperms, extant gymnosperms are crucial for reconstructing ancestral gene regulatory networks in seed plants. This highlights the need for model systems representing each of their distinct lineages. However, tools to quickly and effectively investigate gene function in gymnosperms are still limited due to the
Anthony G. K. Garcia +4 more
wiley +1 more source
The population of single and binary white dwarfs of the Galactic bulge
, 2018 Recent Hubble Space Telescope observations have unveiled the white dwarf cooling sequence of the Galactic bulge. Although the degenerate sequence can be well fitted employing the most up-to-date theoretical cooling sequences, observations show a ...
Calamida, A. +3 more
core +1 more source
Symposium - International Astronomical Union, 1974 The effects of core crystallization and of convection in the envelope on the cooling of white dwarfs are reviewed. The case of a 0.6 M⊙ white dwarf composed of an oxygen core and a helium envelope is taken as example. Also the amount of hydrogen that a white dwarf can accrete before nuclear burning occurs is estimated and possible evolutionary ...
openaire +1 more source
A 5.3-min-period pulsing white dwarf in a binary detected from radio to X-rays
Nature Astronomy, 2023 I. Pelisoli +21 more
semanticscholar +1 more source
The binarity of the local white dwarf population [PDF]
, 2017 Context As endpoints of stellar evolution, white dwarfs (WDs) are powerful tools to study the evolutionary history of the Galaxy. In particular, the multiplicity of WDs contains information regarding the formation and evolution of binary systems ...
S. Toonen +6 more
semanticscholar +1 more source
The Anatomical Record, EarlyView.Abstract A subadult Moschognathus whaitsi from the Eastern Cape Province, South Africa, was scanned using synchrotron radiation X‐ray computed tomography (SRXCT). Its subadult state allowed the cranial bones and teeth to be identified and individually reconstructed in 3D.
Tristen Lafferty +3 more
wiley +1 more source
Revisiting the Impact of Axions in the Cooling of White Dwarfs
, 2012 It has been shown that the shape of the luminosity function of white dwarfs can be a powerful tool to check for the possible existence of DFSZ-axions. In particular, Isern et al.
Althaus, Leandro +2 more
core