Sentences with phrase «dwarf nova»
The breakthrough was being able to reconcile the 580 - year - old Korean recording of this event to the dwarf nova and nova shell that we see in the sky today.»
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This series of photographic plates spanning six weeks in 1942 shows the old nova of 1437 A.D. undergoing a dwarf nova eruption.
We report the identification of a new dwarf nova in M13, the 13th dwarf nova identified in a globular cluster to date.
This led to the detection of one dwarf nova showing several outbursts.
The detection of one dwarf nova when more could have been expected likely indicates that our knowledge of the global Galactic population of cataclysmic variables is too limited.
A Chandra X-ray source is coincident with this dwarf nova and shows both a spectrum and variability consistent with that expected from a dwarf nova, thus supporting the identification.
They suggested that three different stellar observations — bright classical nova explosions, dwarf nova outbursts and an intermediate stage where a white dwarf is not stealing enough material to erupt — are all different views of the same system.
The researchers also saw the star, which they named Nova Scorpii AD 1437, give smaller outbursts called dwarf novas in the 1930s and 1940s.
The proportion of dwarf novae may be lower than found in catalogs, or they may have a much smaller duty cycle in general as proposed by some population synthesis models and recent observations in the field.
Dwarf novae in globular clusters seem to be rare with only 12 detections in the 157 known Galactic globular clusters.
Eclipsing variables of this type may develop into eruptive «dwarf novae» similar to U Geminorum and SS Cygni, and U Pegasi has been observed to exhibit flares or eruptions of small amplitude that may presage more violent activity at a later stage of evolution.
Finding dwarf novas coming from the same binary system appears to indicate they work in cycles.
Not exact matches
Matter falling from a companion star onto a white dwarf might have induced a thermonuclear chain reaction that forced the dwarf to expand radically without exploding into a more common nova, Bond notes.
The event was what's known as a classical nova explosion, which occurs when a dense stellar corpse called a white dwarf steals enough material from an ordinary companion star for its gas to spontaneously ignite.
When the white dwarf has devoured enough material, it can explode as a nova.
Modern astronomers have long speculated that their 17th century counterparts had observed a nova — an exploding white dwarf.
Imagine being able to view microscopic aspects of a classical nova, a massive stellar explosion on the surface of a white dwarf star (about as big as Earth), in a laboratory rather than from afar via a telescope.
A nova can occur if the strong gravity of a white dwarf pulls material from its orbiting companion star.
A kilonova is about 1,000 times brighter than a nova, which is caused by the eruption of a white dwarf.
The first so - called helium nova, the possible result of a large white dwarf sucking material from a hydrogen - deficient companion star, may be a precursor to a supernova
It was first assumed to be a nova — a white dwarf that pulls gas off a companion until it triggers a thermonuclear explosion on its surface.
My research concentrates on the study of exploding stars — mainly nova outbursts caused by thermonuclear explosions on the surface of white dwarfs in binary star systems.
late stages of stellar evolution: white dwarfs, isolated and in interacting binary systems, stellar explosions on white dwarfs (novae and type Ia supernovae).
It's 1,000 times brighter than a nova (when a white dwarf erupts) but not as bright as a supernova.
After the nova burst, gas from the regular star begins to build up again on the white dwarf's surface.
At other times, the white dwarf may pull just enough material from its companion to briefly ignite in a nova, a far smaller explosion.
From the original description, the team knew they were looking for a nova eruption — an extremely powerful explosion, where a white dwarf is fed by hydrogen from a nearby star.
Her research is focused on using radio observations of novae and symbiotic systems to examine the evolution of accreting dwarf galaxies among other things.
Novae, which are significantly less luminous than supernovae, are cataclysmic nuclear explosions that occur on the surface of a white dwarf in a binary system.
Moreover, any «nova outbursts» that occur on the white dwarf are relatively weak and eject little matter, so that the white dwarf grows in mass.