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DOES THE OOSTERHOFF DICHOTOMY EXIST IN THE ANDROMEDA GALAXY? I THE CASE OF G11

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Figure 1. Location of the GCs targeted in the Cycle 15 HST program GO 11081 on a ∼2.9×2.9 deg 2 POSSI/O/DSS2 image of the Andromeda galaxy from the Digitized Sky Survey available at CDS (Strasbourg)
Table 2 Log of the Observations
Figure 2. HSTphot quality image parameters of the G11 data for the PC. The dashed lines show the cuts we have applied to the photometric catalogs.
Figure 4. F 606W , F 814W light curves of the RRL stars detected in this study, ordered by increasing distance from the cluster center (R.A
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