Results 11 to 20 of about 1,989,293 (378)

White dwarf planets [PDF]

open access: yesEPJ Web of Conferences, 2013
The recognition that planets may survive the late stages of stellar evolution, and the prospects for finding them around White Dwarfs, are growing. We discuss two aspects governing planetary survival through stellar evolution to the White Dwarf stage ...
Bonsor Amy   +4 more
doaj   +3 more sources

An irradiated brown-dwarf companion to an accreting white dwarf [PDF]

open access: yesNature, 2016
Interacting compact binary systems provide a natural laboratory in which to study irradiated substellar objects. As the mass-losing secondary (donor) in these systems makes a transition from the stellar to the substellar regime, it is also irradiated by ...
J. V. H. Santisteban   +9 more
semanticscholar   +11 more sources

A Mini-Review of Accreting Pulsating White Dwarfs

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The discovery in 1998 of a pulsating white dwarf in the cataclysmic variable GW Lib opened up a new avenue of exploration in the asteroseismology of white dwarfs.
Paula Szkody
doaj   +1 more source

A giant planet candidate transiting a white dwarf [PDF]

open access: yesNature, 2020
Astronomers have discovered thousands of planets outside the Solar System1, most of which orbit stars that will eventually evolve into red giants and then into white dwarfs.
A. Vanderburg   +63 more
semanticscholar   +1 more source

New Conductive Opacities for White Dwarf Envelopes [PDF]

open access: yesAstrophysical Journal, 2020
Thanks to their continuous cooling and relative simplicity, white dwarf stars are routinely used to measure the ages of stellar populations. The usefulness of white dwarfs as cosmochronometers depends on the availability of accurate cooling models. A key
S. Blouin   +3 more
semanticscholar   +1 more source

Accreting white dwarf [PDF]

open access: yesProceedings of Supernovae: lights in the darkness — PoS(SUPERNOVA), 2008
Thermonuclear (type Ia) supernovae are explosions in accreting white dwarfs, but the exact scenario leading to these explosions is still unclear. An important step to clarify this point is to understand the behaviour of accreting white dwarfs in close binary systems.
Hernanz, Margarita, José, Jordi
openaire   +4 more sources

Magnetic White Dwarfs [PDF]

open access: yesSpace Science Reviews, 2015
In this paper we review the current status of research on the observational and theoretical characteristics of isolated and binary magnetic white dwarfs (MWDs). Magnetic fields of isolated MWDs are observed to lie in the range 10^3-10^9G. While the upper limit cutoff appears to be real, the lower limit is more difficult to investigate. The incidence of
Lilia Ferrario   +2 more
openaire   +5 more sources

UBVR Photometry of white dwarfs and white dwarfs suspects [PDF]

open access: bronzePublications of the Astronomical Society of the Pacific, 1972
Photoelectric UBVr photometry is presented for 33 white-dwarf suspects from the Lowell Observatory lists. On the basis of (B- V) and (U- B) color indices, eight probable white dwarfs are identffied.
Richard D. Schwartz
openalex   +3 more sources

White Dwarf and Pre-White Dwarf Pulsations [PDF]

open access: yesAIP 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   +3 more sources

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