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THE OPTICAL WIND LINE VARIABILITY OF<i>η</i>CARINAE DURING THE 2009.0 EVENT
We report on high-resolution spectroscopy of the 2009.0 spectroscopic event of η Carinae collected via SMARTS observations using the CTIO 1.5 m telescope and echelle spectrograph. Our observations were made almost every night over a two-month interval around the photometric minimum of η Car associated with the periastron passage of …