Fig. A.1.
Download original image
Example of our photometric analysis on the IRAC 3.6 μm data of NGC 2915. First panel: IRAC image, with the ellipse marking the division between galaxy and sky regions. Second panel: Pixel intensity distribution within the sky region (black histogram). The red curve shows the best-fit model made by the sum of a Gaussian and a Schechter component (individually shown by light-blue dashed curves). The vertical dotted line shows the mean of the Gaussian component, corresponding to the sky background value. Third panel: IRAC image filtered with our point-source masking technique (see text). The division in concentric annuli is also shown. Fourth panel: Final radial intensity profile in image units (black circles with error-bars) and normalised growth curve (red solid curve).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.