Results 101 to 110 of about 116,162 (381)

Asteroseismology of One of the Most Rapidly Rotating DBV Stars: EPIC 248705247

The Astrophysical Journal
We present a comprehensive analysis of oscillations of the helium-rich white dwarf DBV star EPIC 248705247 (SDSS J102106.69+082724.8). We extract the light curves from 79.7 days of K2 Campaign 14 data and identify 21 independent frequencies, including ...
Jiayi Zhang, Jianning Fu, Tianqi Cang, Jie Su, Yanhui Chen, Xiaoyu Ma, Gang Meng   +6 more
doaj   +1 more source

Phosphate Removal by ZIF‐8 and Magnetic Fe3O4/ZIF‐8: A Comparative Study of Capacity, Kinetics, and Regeneration

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, Maria Stefani, Immanuel Joseph Ondang, Artik Elisa Angkawijaya, Shella Permatasari Santoso, Hsien‐Yi Hsu, Felycia Edi Soetaredjo, Kuan‐Chen Cheng, Shin‐Ping Lin, Chang‐Wei Hsieh, Suryadi Ismadji   +10 more
wiley   +1 more source

A magnetic white dwarf in a detached eclipsing binary [PDF]

, 2013
SDSS J030308.35+005444.1 is a close, detached, eclipsing white dwarf plus M dwarf binary which shows a large infrared excess which has been interpreted in terms of a circumbinary dust disc.
Applegate, Araujo-Betancor, B. T. Gänsicke, Backhaus, Beuermann, Beuermann, Brinkworth, Burleigh, Campbell, Campbell, Claret, Copperwheat, Copperwheat, D'Odorico, Davis, Debes, Debes, Dhillon, Dobbie, Dobbie, Faulkner, Feiden, Ferrario, Ferrario, Ferrario, Ferrario, Friedrich, Gianninas, Greenstein, Gänsicke, Gänsicke, Kafka, Kafka, Kissler-Patig, Kraft, Külebi, Külebi, Li, Liebert, Liebert, Lubow, M. C. P. Bours, M. R. Schreiber, Marsh, Matranga, Maxted, Morales, O'Donoghue, Parsons, Parsons, Parsons, Parsons, Parsons, Potter, Pretorius, Pyrzas, Pyrzas, Rappaport, Rebassa-Mansergas, Rebassa-Mansergas, Reimers, Reimers, Ribeiro, S. G. Parsons, S. P. Littlefair, Schmidt, Schmidt, Schreiber, Schwope, Schwope, Silvestri, Silvestri, Smith, Steeghs, Stockman, T. R. Marsh, Tappert, Terrien, Tout, V. S. Dhillon, Verbunt, Vogel, Vogel, Watson, Wickramasinghe, Wickramasinghe, Zorotovic   +86 more
core   +3 more sources

A White Dwarf Catalog from LAMOST DR11 Using Deep Learning

The Astrophysical Journal Supplement Series
White dwarfs, also referred to as degenerate dwarfs, represent the ultimate fate for the majority of stars in the Universe, unless their mass is large enough for them to evolve into black holes or neutron stars.
Shengwen Zhang, Yanxia Zhang, Chao Liu
doaj   +1 more source

Interacting Binary White Dwarf Stars [PDF]

Symposium - International Astronomical Union, 1992
This group of stars consists of 4 systems, also called helium cataclysmics. Three of them show photometric variations and have been studied by the Whole Earth Telescope (WET), which have revealed multiperiodic light curves showing the signature of g-mode non-radial pulsations on the accreting star.
openaire   +1 more source

Description of the skull, braincase, and dentition of Moschognathus whaitsi (Dinocephalia, Tapinocephalia), and its palaeobiological and behavioral implications

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, Luke A. Norton, Aliénor Duhamel, Julien Benoit   +3 more
wiley   +1 more source

Constraining the neutrino magnetic dipole moment from white dwarf pulsations [PDF]

, 2014
Pulsating white dwarf stars can be used as astrophysical laboratories to constrain the properties of weakly interacting particles. Comparing the cooling rates of these stars with the expected values from theoretical models allows us to search for ...
Althaus, Leandro G., Bertolami, Marcelo M. Miller, Córsico, Alejandro H., García-Berro, Enrique, Kepler, S. O.   +4 more
core   +4 more sources

Rethinking brachycephaly: Anatomical implications and health considerations in lagomorphs

The Anatomical Record, EarlyView.
Abstract Brachycephaly in domestic rabbits is increasingly perceived by welfare organizations as associated with significant health complications, particularly oral pathologies. Despite this perception, comparative anatomical research into rabbit brachycephaly is limited compared to that of dogs and cats, compelling an in‐depth examination of its ...
Helaina Cressy, Alice Nishigaki, Matthew C. Gage, Renato L. Previdelli   +3 more
wiley   +1 more source

Spectroscopic confirmation of a white dwarf companion to the B star 16 Dra [PDF]

, 2000
Using an Extreme Ultraviolet Explorer (EUVE) spectrum, we confirm the identification of a white dwarf companion to the B9.5V star 16 Dra (HD150100), and constrain its surface temperature to lie between 29,000K and 35,000K.
Barstow, Martin, Burleigh, Matt
core   +1 more source

Essential work, invisible workers: The role of digital curation in COVID‐19 Open Science

Journal of the Association for Information Science and Technology, Volume 76, Issue 4, Page 703-717, April 2025.
Abstract In this paper, we examine the role digital curation practices and practitioners played in facilitating open science (OS) initiatives amid the COVID‐19 pandemic. In Summer 2023, we conducted a content analysis of available information regarding 50 OS initiatives that emerged—or substantially shifted their focus—between 2020 and 2022 to address ...
Irene V. Pasquetto, Amina A. Abdu, Natascha Chtena   +2 more
wiley   +1 more source