Type Ia supernovae arise from the thermonuclear explosion of white-dwarf stars that have cores of carbon and oxygen. The uniformity of their light curves makes...
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PublicationA hybrid type Ia supernova with an early flash triggered by helium-shell detonation
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PublicationA mass of less than 15 solar masses for the black hole in an ultraluminous X-ray source
Most ultraluminous X-ray sources have a typical set of properties not seen in Galactic stellar-mass black holes. They have luminosities of more than 3 × 1039...
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PublicationA Milky Way-like barred spiral galaxy at a redshift of 3
The majority of massive disk galaxies in the local Universe show a stellar barred structure in their central regions, including our Milky Way1,2. Bars are...
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PublicationA persistent ultraviolet outflow from an accreting neutron star binary transient
All disc-accreting astrophysical objects produce powerful disc winds. In compact binaries containing neutron stars or black holes, accretion often takes place...
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PublicationA planet within the debris disk around the pre-main-sequence star AU Microscopii
AU Microscopii (AU Mic) is the second closest pre-main-sequence star, at a distance of 9.79 parsecs and with an age of 22 million years1. AU Mic possesses a...
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PublicationA Pluto-like radius and a high albedo for the dwarf planet Eris from an occultation
The dwarf planet Eris is a trans-Neptunian object with an orbital eccentricity of 0.44, an inclination of 44 degrees and a surface composition very similar to...
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PublicationA possible low-mass type Ia supernova
IN the standard model for type Ia supernovae1, a massive white dwarf in a binary system accretes matter from the companion star until it reaches the...
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PublicationA radio-pulsing white dwarf binary star
White dwarfs are compact stars, similar in size to Earth but approximately 200,000 times more massive. Isolated white dwarfs emit most of their power from...
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PublicationA recurrent nova super-remnant in the Andromeda galaxy
The accretion of hydrogen onto a white dwarf star ignites a classical nova eruption1,2—a thermonuclear runaway in the accumulated envelope of gas, leading to...