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 ScienceWatch

2008 : March 2008 - Fast Moving Fronts : Daniela Calzetti - Figures & Descriptions

FAST MOVING FRONTS

March 2008

Daniela Calzetti talks with ScienceWatch.com and answers a few questions about this month's Fast Moving Front in the field of Space Science. The author has also sent along images of their work.
Article: Star formation in NGC 5194 (M51a): The panchromatic view from GALEX to Spitzer
Authors: Calzetti, D, et al.
Journal: ASTROPHYS J, 633 (2): 871-893 Part 1 NOV 10 2005
Addresses: Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA.
Space Telescope Sci Inst, Baltimore, MD 21218 USA.
Univ Arizona, Steward Observ, Tucson, AZ 85721 USA.
(addresses have been truncated)

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Figures and descriptions:

Figure 1:  
Figure 1: "The galaxy pair M51, formed by the giant spiral M51a and the small elliptical companion M51b, is shown in a three-color rendition that overlaps images from three telescopes: the ultraviolet GALEX telescope in space, the ground-based 2.1-m telescope at NOAO at visible wavelengths, and the Spitzer Space Telescope in the infrared.

The blue color in the figure traces the ultraviolet light emitted by the young massive stars in the system (from the GALEX telescope), the green color traces the gas excited by the young stars which emits at visible wavelengths (from the NOAO telescope), and the red color shows the location of the dust heated by the stars and emitting in the infrared (from the Spitzer telescope). The three-color figure shows strikingly how well the massive stars, the gas and the dust emission trace each other. Reproduced from Calzetti et al., Astrophysical Journal [633] 871, 2005, by permission of the AAS." 
 

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2008 : March 2008 - Fast Moving Fronts : Daniela Calzetti - Figures & Descriptions

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