Stars with masses ranging from 7 to 10 times the mass of the Sun end their lives either as massive white dwarfs or weak type II supernovae, but there are only limited observational constraints on either evolutionary channel. Here we report the detection of two white dwarfs with large photospheric oxygen abundances, implying that they are bare oxygen-neon cores and that they may have descended from the most massive progenitors that avoid core collapse
The existence of carbon in cool He white dwarf (WD) atmospheres has been known for a relatively long...
Ultra-massive white dwarfs ( M WD1 . 05 M ) are considered powerful tools to study Type Ia supernova...
White dwarf stars are the most common end point of stellar evolution. The ultramassive white dwarfs ...
White dwarf stars are the most common end point of stellar evolution. The ultramassive white dwarfs ...
Context. The existence of ultra-massive white dwarf stars, M & 1.05 M, has been reported in several ...
White dwarfs represent the endpoint of stellar evolution for stars with initial masses between appro...
Aims. We present evolutionary calculations and colors for massive white dwarfs with oxygen-neon core...
We study the full evolution of low-mass white dwarfs with helium and oxygen cores. We revisit the ag...
White dwarfs are dense, cooling stellar embers consisting mostly of carbon and oxygen1, or oxygen an...
[Context] Ultra-massive white dwarfs are relevant for many reasons: Their role as type Ia supernova ...
Aims. The present paper focuses on the evolution of hydrogen-deficient white dwarfs with the aim of ...
We present full evolutionary calculations appropriate for the study of hot hydrogen-deficient DO whi...
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society....
White dwarfs are the burnt-out cores of Sun-like stars and are the fate of 97 per cent of the stars ...
The existence of carbon in cool He white dwarf (WD) atmospheres has been known for a relatively long...
Ultra-massive white dwarfs ( M WD1 . 05 M ) are considered powerful tools to study Type Ia supernova...
White dwarf stars are the most common end point of stellar evolution. The ultramassive white dwarfs ...
White dwarf stars are the most common end point of stellar evolution. The ultramassive white dwarfs ...
Context. The existence of ultra-massive white dwarf stars, M & 1.05 M, has been reported in several ...
White dwarfs represent the endpoint of stellar evolution for stars with initial masses between appro...
Aims. We present evolutionary calculations and colors for massive white dwarfs with oxygen-neon core...
We study the full evolution of low-mass white dwarfs with helium and oxygen cores. We revisit the ag...
White dwarfs are dense, cooling stellar embers consisting mostly of carbon and oxygen1, or oxygen an...
[Context] Ultra-massive white dwarfs are relevant for many reasons: Their role as type Ia supernova ...
Aims. The present paper focuses on the evolution of hydrogen-deficient white dwarfs with the aim of ...
We present full evolutionary calculations appropriate for the study of hot hydrogen-deficient DO whi...
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society....
White dwarfs are the burnt-out cores of Sun-like stars and are the fate of 97 per cent of the stars ...
The existence of carbon in cool He white dwarf (WD) atmospheres has been known for a relatively long...
Ultra-massive white dwarfs ( M WD1 . 05 M ) are considered powerful tools to study Type Ia supernova...
White dwarf stars are the most common end point of stellar evolution. The ultramassive white dwarfs ...