CFHT UM2025 - Presentation Details
Abstract Details
Title: Revealing the Magnetic South Pole of the Strongly Magnetic O-star NGC 1624-2
Presenter: Shaquann Seadrow
Abstract:
We revisit the magnetic field structure of the strongly magnetic O-star NGC 1624-2. In a recent effort to revise this star’s rotation period, we have identified a gap in spectropolarimetric observations. There is spectroscopic evidence to suggest that the rotation period could actually be twice as long as the period that was originally reported, on the order of 300 days. This longer period implies that both magnetic poles are visible and that the magnetic south pole has been overlooked in followup studies. We present the results of combining archival spectropolarimetric observations with a new ESPaDOns Stokes V that was recently acquired at the epoch we predicted the southern magnetic hemisphere would be observable.