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Radio Active Brown Dwarves are new class of Pulsar

Last Updated on Thursday, 27 May 2010 17:35
Published on Friday, 13 April 2007 00:00
IMAGES:

Fig. 1:
Brown_dwarf1_thumb
Caption: Artist's impression of a brown dwarf with "super-aurorae" at its magnetic
poles, causing the pulsed radio emission.
(C) National University of Ireland, Armagh Observatory, National Radio Astronomy Observatory, United States Naval Observatory & Vatican Observatory,
Arizona.









Fig. 2:
Brown_dwarf2_thumb.jpgCaption: Two images taken with the VLA showing a brown dwarf and a field source. In the left hand image, the brown dwarf is not emitting.  The right hand image was taken during one of the pulses. In the left hand image the brown dwarf is not present, while in the right hand image, it outshines the field source.(C) National University of Ireland, Armagh Observatory, National Radio Astronomy Observatory, United States Naval Observatory & Vatican Observatory,
Arizona.





Fig. 3


Brown_dwarf3_thumb.jpg
Caption: Composite image of artist's impression, observations of a brown dwarf and a field source and a plot of the light-curve showing the pulsing intensity of the radio emissions.
(C) National University of Ireland, Armagh Observatory, National Radio Astronomy Observatory, United States Naval Observatory & Vatican Observatory,
Arizona.