... spirals[*]
Taking $12+\log{({\rm O/H})}=8.66$ for the solar metallicity (Asplund et al. 2005). 
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... Manual[*]
http://ssc.spitzer.caltech.edu/documents/som/ 
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... NRAO[*]
The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc. 
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... AIPS[*]
The Astronomical Image Processing System is a software package provided by the National Radio Astronomy Observatory. 
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... IRAF[*]
IRAF is distributed by the National Optical Astronomy Observatories, which are operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation. 
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... pixels[*]
See http://ssc.spitzer.caltech.edu/irac/dh/ 
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... image[*]
See Morrissey et al. (2005) and the GALEX Observers Guide http://www.galex.caltech.edu/DATA/gr1_docs/GR1_Observers_guide_v1.htm for more details. 
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... counterparts[*]
This region falls outside the H$\alpha $ field of view. In the optical the region is also faint, the surface brightness averaged over the condensation being $\sim$25.2 mag/ $^{\prime\prime}$2 in the B band. The global morphology of this region is similar to what is observed in the ultraviolet. 
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... geometry[*]
The radiation shortward of 91.2 nm is more affected by dust extinction than the near ultraviolet, therefore H$\alpha $ is more sensitive than ultraviolet to the effects of geometry. 
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... M 81[*]
The mid-infrared flux densities were provided by Pérez-González (priv. comm.). 
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... bands[*]
Using the standard calibration of Kennicutt (1998) and the assumptions made therein. 
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...Higdon et al. (2006)[*]
EW(6.2 $\mu $m) = 0.58 $\mu $m, EW(7.7 $\mu $m) = 0.52 $\mu $m, EW(8.6  $\mu{\rm m})=0.53$ $\mu $m, EW(11.2 $\mu $m) = 0.65 $\mu $m. 
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... common[*]
The gigantic Ly$\alpha $ blobs found in the distant Universe (Jiménez & Haiman 2006; Nilsson et al. 2006) actually present some similarities with NGC 5291. 
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Copyright ESO 2007