aug 222013
 
Stellar Winds Scatter Star-Forming Material

  A University of Alberta astrophysicist’s 3-D computer animation is helping an international research team get an unprecedented look at star-forming gases escaping from the nearby starburst galaxy NGC 253 (The Sculptor Galaxy).    UAlberta astrophysicist Erik Rosolowsky created this 3-D rendering of carbon monoxide in the starburst galaxy NGC 253 (The Sculptor Galaxy).    Since 2011, [continue reading]

jul 262013
 
The Sculptor Galaxy and the Limits to Galactic Growth

  Astronomers have long assumed that when a galaxy produces too many stars too quickly, it greatly reduces its capacity for producing stars in the future. Now, a group of astronomers that includes Fabian Walter from the Max Planck Institute for Astronomy were able to obtain the first detailed images of this type of self-limiting [continue reading]

jul 022013
 
Red Dwarfs Could Strip Away Protection of Their Planets

  Red dwarfs are the commonest type of stars, making up about 75% of the stars in our Galaxy. They are much smaller and much less massive than our Sun and for that reason a lot dimmer. If planets are found around these stars, then given the number of red dwarfs, life could then be [continue reading]

mrt 282013
 
Titanium Oxides Around a Giant Star Discovered

  Astronomers detect titanium oxide and titanium dioxide around the giant star VY Canis Majoris An international team of astronomers, including researchers from the Max Planck Institute for Radio Astronomy and from the University of Cologne, successfully identified two titanium oxides in the extended atmosphere around a giant star. The object VY Canis Major is [continue reading]

feb 052013
 
Massive Stellar Winds are Made of Tiny Pieces

  ESA’s XMM-Newton space observatory has completed the most detailed study ever of the fierce wind from a giant star, showing for the first time that it is not a uniform breeze but is fragmented into hundreds of thousands of pieces. Artist’s impression comparing a smooth stellar wind (left) with a highly fragmented stellar wind [continue reading]

nov 152012
 
Fate of Solar System Shown by Reborn Star

  Astronomers have found evidence for a dying Sun-like star coming briefly back to life after casting its gassy shells out into space, mimicking the possible fate our own Solar System faces in a few billion years. The intricate pattern of planetary nebula Abell 30 is revealed in these images that combine optical Hubble Space [continue reading]