8.5 Target-Specific Problems
119
Fig. 8.9 An inverted science frame of the globular cluster M3 taken in clear. This image has yet to
undergo any post-production correction to improve the visibility of the stars near the centre. (Image
courtesy University of Hertfordshire)
65535
12681
84
Distance (pixels)
707
Intensity
Fig. 8.10 A slice though Fig. 8.9 using SalsaJ. We can see that near the centre of the globular
cluster there are many saturated stars The sharp peak to the left of the main body is caused by a
cosmic ray
Figure 8.10 shows a slice through Fig. 8.9. The apparent rise in the background
near to the centre of the field is in fact due to the stars in the centre of the cluster
merging in the image. We can also see that there are a number of regions in the centre
that are saturated. The sharp peak located to the left is due to a cosmic ray.
119
Fig. 8.9 An inverted science frame of the globular cluster M3 taken in clear. This image has yet to
undergo any post-production correction to improve the visibility of the stars near the centre. (Image
courtesy University of Hertfordshire)
65535
12681
84
Distance (pixels)
707
Intensity
Fig. 8.10 A slice though Fig. 8.9 using SalsaJ. We can see that near the centre of the globular
cluster there are many saturated stars The sharp peak to the left of the main body is caused by a
cosmic ray
Figure 8.10 shows a slice through Fig. 8.9. The apparent rise in the background
near to the centre of the field is in fact due to the stars in the centre of the cluster
merging in the image. We can also see that there are a number of regions in the centre
that are saturated. The sharp peak located to the left is due to a cosmic ray.