Results 31 to 40 of about 2,034,344 (399)
EPJ Web of Conferences, 2017 The Sloan Digital Sky Survey has allowed us to increase the number of known white dwarfs by a factor of five and consequently the number of known pulsating white dwarfs also by a factor of five. It has also led to the discovery of new types of variable white dwarfs, as the variable hot DQs, and the pulsating Extremely Low Mass white dwarfs.
Kepler S.O., Romero Alejandra D.
openaire +3 more sources
Magnetism in white Dwarfs [PDF]
Symposium - International Astronomical Union, 1971 Searches have been made for the normal and quadratic Zeeman effect and broad-band circular polarization in white dwarf stars. A positive effect has been found in Grw + 70°8247 whose continuum shows both linear and circular polarization.
J. D. Landstreet, J. R. P. Angel
openaire +1 more source
The White Dwarf Initial–Final Mass Relation for Progenitor Stars from 0.85 to 7.5 M⊙ [PDF]
Astrophysical Journal, 2018 We present the initial–final mass relation (IFMR) based on the self-consistent analysis of Sirius B and 79 white dwarfs from 13 star clusters. We have also acquired additional signal on eight white dwarfs previously analyzed in the NGC 2099 cluster field,
J. Cummings +4 more
semanticscholar +1 more source
Explosion of White Dwarfs [PDF]
International Astronomical Union Colloquium, 1987 AbstractWe present models for Type I supernova light curves based on the explosion of partially solid white dwarfs in close binary systems. Studies of such explosions show that they leave bound remnants of different size. Our results reproduce quite well the maximun luminosities, the expansion velocities and the shape of the light curve.
R. Lopez, J. Isern, J. Labay, R. Canal
openaire +1 more source
Accretion of a giant planet onto a white dwarf star [PDF]
Nature, 2019 The detection1 of a dust disk around the white dwarf star G29-38 and transits from debris orbiting the white dwarf WD 1145+017 (ref. 2) confirmed that the photospheric trace metals found in many white dwarfs3 arise from the accretion of tidally disrupted
B. Gänsicke +5 more
semanticscholar +1 more source
Maximum mass ratio of AM CVn-type binary systems and maximum white dwarf mass in ultra-compact X-ray binaries [PDF]
Serbian Astronomical Journal, 2011 AM CVn-type stars and ultra-compact X-ray binaries are extremely interesting semi-detached close binary systems in which the Roche lobe filling component is a white dwarf transferring mass to another white dwarf, neutron star or a black hole ...
Arbutina Bojan
doaj +1 more source
Detached white-dwarf close-binary stars -- CV's extended family [PDF]
, 1999 I review detached binaries consisting of white dwarfs with either other white dwarfs or low mass main-sequence stars in tight orbits around them. Orbital periods have been measured for 15 white dwarf/white dwarf systems and 22 white dwarf/M dwarf systems.
Marsh, T. R.
core +3 more sources
White Dwarf and Pre-White Dwarf Pulsations [PDF]
AIP Conference Proceedings, 2009 In this review I describe the basic properties of white dwarfs and their pulsations. I then discuss some of the areas in which the pulsations can provide meaningful results, such as internal chemical profiles, possible emission of “exotic” particles, planet detection, crystallization, convection, accretion, and cosmochronology.
M. H. Montgomery +2 more
openaire +2 more sources
Predicting the LISA white dwarf binary population in the Milky Way with cosmological simulations [PDF]
Monthly notices of the Royal Astronomical Society, 2019 White dwarf binaries with orbital periods below 1 h will be the most numerous sources for the space-based gravitational wave detector Laser Interferometer Space Antenna (LISA).
A. Lamberts +5 more
semanticscholar +1 more source
Asteroseismic Study of KUV03442+0719 with Parallax Constraints
The Astrophysical Journal, 2023 Hydrogen atmosphere white dwarf KUV03442+0719 was first reported as a pulsator by Gianninas et al. in 2006. Follow-up campaigns by Su et al. revealed more periods.
Agnes Bischoff-Kim
doaj +1 more source