Discovery of water vapour around IRC+10216 as evidence for comets orbiting another star

Article Abstract:

Research describing the observation of water vapour around the ageing carbon star IRC+10216 is presented. It is suggested that the star is causing the vaporization of orbiting icy bodies by changes in its structure as evidenced by its increased luminosity.

Author: Melnick, Gary J., Neufeld, David A., Ford, K.E. Saavik, Hollenbach, David J., Ashby, Matthew L.N.
Research, Comets, Stars, Atmosphere

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A giant stream of metal-rich stars in the halo of the galaxy M31

Article Abstract:

Research describing the structure of the Andromeda galaxy is presented. In particular galaxy formation from the tidal interaction of large and small galaxies and the ensuing structure of galactic haloes is investigated.

Author: Lewis, Geraint, Ibata, Rodrigo, Irwin, Michael, Fergusson, Annette M.N., Tanvir, Nial
Galaxies, Galactic evolution, Andromeda (Nebula), Andromeda galaxy

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Subjects list: Astronomy, Observations
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