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. +4 more
core +4 more sources
The White Dwarfs within 25 Parsecs of the Sun: Kinematics and Spectroscopic Subtypes [PDF]
, 2014 We present the fractional distribution of spectroscopic subtypes, range and distribution of surface temperatures, and kinematical properties of the white dwarfs within 25pc of the sun.
Holberg, J. B. +5 more
core +4 more sources
Thick to Thin: The Evolutionary Connection Between PG 1159 Stars and the Thin Helium-Enveloped Pulsating White Dwarf GD 358 [PDF]
, 1995 Seismological observations with the Whole Earth Telescope (WET) allow the determination of the subsurface compositional structure of white dwarf stars.
Dehner, Benjamin T., Kawaler, Steven D.
core +2 more sources
Odessa Astronomical Publications, 2007 It has been shown quite recently (Morales-Rueda et al., 2003) that dB stars, extreme horisontal branch (EHB) objects in high probability all belong to binary systems.
V. -V. Pustynski, I. Pustylnik
doaj +1 more source
Amplitude and frequency variations of oscillation modes in the pulsating DB white dwarf star KIC 08626021 [PDF]
Astronomy & Astrophysics, 2015 14 pages, 13 Figures, 2 Tables, accepted to A& ...
Zong, W. +4 more
openaire +2 more sources
A survey of pulsating DA and DB white dwarfs Observations with the Whole Earth Telescope
EPJ Web of Conferences, 2017 White dwarfs represent the end point of stellar evolution for the majority of stars. As such, they are excellent astrophysical laboratories. They are structurally simple, with electron degenerate cores surrounded by thin surface layers of helium and/or ...
Provencal J. L. +2 more
doaj +1 more source
An asteroseismic test of diffusion theory in white dwarfs [PDF]
, 2005 The helium-atmosphere (DB) white dwarfs are commonly thought to be the descendants of the hotter PG1159 stars, which initially have uniform He/C/O atmospheres.
Althaus +44 more
core +1 more source
Non-LTE spectral analyses of the lately discovered DB-gap white dwarfs from the SDSS
, 2009 For a long time, no hydrogen-deficient white dwarfs have been known that have effective temperature between 30 kK and < 45 kK, i.e. exceeding those of DB white dwarfs and having lower ones than DO white dwarfs.
Dreizler S +3 more
core +1 more source
Asteroseismology of One of the Most Rapidly Rotating DBV Stars: EPIC 248705247
The Astrophysical JournalWe 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 +6 more
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
FEBS Letters, EarlyView.This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source