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News articles tagged with 'dwarf'

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Rapid supernova could be new class of exploding star

— 6 Nov 2009 11:03 | Astronomy

An unusual supernova rediscovered in seven-year-old data may be the first example of a new type of exploding star, possibly from a binary star system where helium flows from one white... — full story

Illustration of the white dwarf and its companion HD49798. If it was possible to look at the system up-close, it would look something like this, (c) Francesco Mereghetti, background image: NASA, ESA and T.M. Brown (STScI)XMM-Newton uncovers a celestial Rosetta stone

— 4 Sep 2009 16:31 | Astronomy

ESA's XMM-Newton orbiting X-ray telescope has uncovered a celestial Rosetta stone: the first close-up of a white dwarf star, circling a companion star, that could explode into a particular... — full story

From an international command centre at Mt. Cuba Observatory in Wilmington, Del., University of Delaware astronomer Judi Provencal is coordinating the Whole Earth Telescope's latest observing run, which focuses on a dying star in the constellation Ophiuchus, (c) Kevin Quinlan, University of DelawareWorld's observatories watching 'cool' star

— 16 May 2009 13:17 | Astronomy

The Whole Earth Telescope (WET), a worldwide network of observatories coordinated by the University of Delaware, is synchronising its lenses to provide round-the-clock coverage of a... — full story

An image of the Draco satellite dwarf galaxy, (c) Mischa Schirmer, University of BonnTime for a new theory of gravitation? Satellite galaxies challenge Newtonian model

— 22 Apr 2009 15:32 | Astronomy

The high speed of stars and apparent presence of 'dark matter' in the satellite galaxies that orbit our Milky Way Galaxy presents a direct challenge to Newton's theory of gravitation,... — full story

An artist's impression of the binary star system RS Ophiuchi: hydrogen-rich gas transferred from a red giant onto the surface of a white dwarf has just exploded, (c) David A. Hardy http://www.astroart.org and Science and Technology Facilities CouncilA peanut-shaped stellar explosion

— 22 Apr 2009 15:17 | Astronomy

Using the NASA/ESA Hubble Space Telescope (HST), an international team of astronomers have taken the first optical images of a dramatic stellar outburst and discovered a peanut-shaped... — full story

Youthful supernovae explained?

— 8 Apr 2009 16:02 | Astronomy

A team of astronomers, led by Dr Bo Wang from the Yunnan Observatory of the Chinese Academy of Sciences, have developed a new model which explains the formation of the most youthful... — full story

The unique ultraviolet vision of NASA's Galaxy Evolution Explorer reveals, for the first time, dwarf galaxies forming out of nothing more than pristine gas likely leftover from the early Universe, (c) NASA, JPL-Caltech, DSSNew recipe for dwarf galaxies: Start with leftover gas

— 19 Feb 2009 10:10 | Astronomy

There is more than one way to make a dwarf galaxy, and NASA's Galaxy Evolution Explorer has found a new recipe. The spacecraft has, for the first time, identified dwarf galaxies forming... — full story

The coolest and oldest objects in the galaxy measured from Calar Alto

— 14 Feb 2009 09:50 | Astronomy

Spiral galaxies as our own are made up from several structural components. Their most outstanding part is a flat disc where stars and gas trace graceful spiral arms. In the centre of... — full story

Star light, star bright, its explanation is out of sight

— 7 Jan 2009 15:08 | Astronomy

A mysterious flash of light from somewhere near or far in the Universe is still keeping astronomers in the dark long after it was first detected by NASA's Hubble Space Telescope in... — full story

This artist's concept illustrates a dead star, or 'white dwarf,' surrounded by the bits and pieces of a disintegrating asteroid, (c) NASA, JPL-CaltechDead stars tell story of planet birth

— 6 Jan 2009 12:22 | Astronomy

Astronomers have turned to an unexpected place to study the evolution of planets - dead stars. Observations made with NASA's Spitzer Space Telescope reveal six dead 'white dwarf' stars... — full story

News articles tagged with 'dwarf' — 39
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