Results 121 to 130 of about 1,914,179 (372)
Trace hydrogen in helium atmosphere white dwarfs as a possible signature of water accretion [PDF]
, 2017 A handful of white dwarfs with helium-dominated atmospheres contain exceptionally large masses of hydrogen in their convection zones, with the metal-polluted white dwarf GD 16 being one of the earliest recognized examples.
N. G. Fusillo +11 more
semanticscholar +1 more source
American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.ABSTRACT Turner syndrome (TS) is frequently complicated by congenital heart disease (CHD). While left‐sided lesions such as bicuspid aortic valve (BAV) and coarctation of the aorta are the most common structural heart lesions in TS, other anomalies, such as aortic arch malformations, hypoplastic left heart syndrome (HLHS), persistent left superior vena
Katya de Groote +9 more
wiley +1 more source
Novel Atmospheric Dynamics Shape the Inner Edge of the Habitable Zone around White Dwarfs
The Astrophysical JournalWhite dwarfs offer a unique opportunity to search nearby stellar systems for signs of life, but the habitable zone around these stars is still poorly understood.
Ruizhi Zhan +2 more
doaj +1 more source
Measurements of Physical Parameters of White Dwarfs: A Test of the Mass–Radius Relation [PDF]
, 2017 We present a detailed spectroscopic and photometric analysis of 219 DA and DB white dwarfs for which trigonometric parallax measurements are available.
Antoine B'edard +2 more
semanticscholar +1 more source
Observations of Ultracool White Dwarfs [PDF]
The Astrophysical Journal, 2001 Accepted to Astronomical Journal, March ...
Oppenheimer, B. R. +8 more
openaire +6 more sources
The Insistence of Blackness and the Persistence of Antiblackness in Ireland
Australian Journal of Social Issues, EarlyView.ABSTRACT This paper positions Ireland as a critical site for examining the insistence of blackness and an antiblackness created and sustained through Irish ethnonationalist imaginaries and exclusionary processes. Drawing on connected sociologies and Irish Black Studies, this enquiry argues that antiblackness in Ireland operates as a generational force,
Philomena Mullen
wiley +1 more source
Catalog of Magnetic White Dwarfs with Hydrogen Dominated Atmospheres
The Astrophysical Journal, 2023 White dwarfs are excellent research laboratories as they reach temperatures, pressures, and magnetic fields that are unattainable on Earth. To better understand how these three physical parameters interact with each other and with other stellar features,
L. L. Amorim +4 more
doaj +1 more source
A Common Origin of Magnetism from Planets to White Dwarfs [PDF]
, 2017 Isolated magnetic white dwarfs have field strengths ranging from kilogauss to gigagauss. However, the origin of the magnetic field has not been hitherto elucidated.
J. Isern +3 more
semanticscholar +1 more source
Highlights of Astronomy, 1980 It has been known for a long time that white dwarfs are pulsationally unstable if nuclear burning takes place in their envelopes. Perturbation of energy generation rate promotes pulsational instability and this effect is frequently referred to as ε-mechanism.
openaire +2 more sources
The Physics of Crystallizing White Dwarfs [PDF]
The Astrophysical Journal, 1997 Accepted for publication in ApJ (16 pages, 1 figure, aasms4)
Enrique García-Berro +3 more
openaire +3 more sources