Sentences with phrase «young white dwarf»

We performed a pilot study with the extreme - AO system on the Spectro - Polarimetric High - contrast Exoplanet REsearch (SPHERE) on the Very Large Telescopes (VLT) to look for giant planets around a young white dwarf, GD 50.

H. Bond (STSci), R. Ciardullo (PSU), WFPC2, HST, NASA HD 147513 B is a young white dwarf (a remnant stellar core which enriched its binary companion, Star A) with elements heavier than hydrogen when it cast off its outer gas layers) like planetary nebula NGC 2440.

The youngest white dwarfs are the hottest and emit strongly in the extreme ultraviolet, which corresponds to temperatures between 100 000 °C and about 1 million °C.

Not exact matches

The researchers found that relatively cool accretion discs around young stars, whose inner edges can be several times the size of the Sun, show the same behaviour as the hot, violent accretion discs around planet - sized white dwarfs, city - sized black holes and supermassive black holes as large as the entire Solar system, supporting the universality of accretion physics.

The study, «Accretion - induced variability links young stellar objects, white dwarfs, and black holes», which is published in the journal Science Advances, shows how the «flickering» in the visible brightness of young stellar objects (YSOs)-- very young stars in the final stages of formation — is similar to the flickering seen from black holes or white dwarfs as they violently pull matter from their surroundings in a process known as accretion.

Dr Simon Vaughan, Reader in Observational Astronomy at the University of Leicester's Department of Physics and Astronomy, explained: «The seemingly random fluctuations we see from the black holes and white dwarfs look remarkably similar to those from the young stellar objects — it is only the tempo that changes.»

The new observations were obtained with Kepler / K2 and ULTRACAM, examining accreting white dwarfs and young stellar objects.

Even protostars — these are young stars that are just forming and making their own planetary disks and so on — they make very powerful outflows called, the same sort of jets obviously moving at slower speeds, but they are full of plasma, that is flowing out at high speed; white dwarfs, neutron stars, black holes big and small, they seem able to do this task, it really seems to be a very common phenomenon.

A Southampton astronomer is among a team of international researchers whose work has revealed a surprising similarity between the way in which astronomical objects grow including black holes, white dwarfs and young stars.

The article Accretion - induced variability links young stellar objects, white dwarfs, and black holes has been published in the latest edition of the journal Science Advances.

HD 147513 A is a so - called young «Barium dwarf» (s - process element rich but comparatively carbon deficient) star that was probably enriched by an asymptotic branch giant (AGB) star (see Gacrux) but is now a very dim, white dwarf companion, which has an observed separation of around 4,400 AUs — 5.7» at a HIPPARCOS distance estimate of 42.0 ly (Porto de Mello and da Silva, 1997; and Poveda et al, 1993, pp. 74 - 75).

These ancient white dwarfs are 12 to 13 billion years old, only slightly younger than the universe itself.

I remember when I was young, the teacher in the kindergarten told us a story called Snow White and the Seven Dwarfs.

I will now give you some movies that were intended for a younger audience as well as the rotten tomatoes review that it got: Toy Story (100) Toy Story 2 (100) Snow white and the seven dwarfs (98).

Young children love Dr. Seuss's Ten Apples Up on Top, and the fairytale Snow White and the Seven Dwarfs.

The young Snow White masturbating in a solitary romantic reverie, various phallic - nosed dwarfs in a dither at the arrival of the beautiful stranger in their midst — he develops his characters and depicts them as players in a sly yet poignant coming - of - age narrative packing a metaphorical wallop.