Table 2: Periodicities identified using pre-whitening analysis for the HST FOS light curve, during the sforzando, in 1996, both for the total UV (1196-2484 Å) and zeroth-order light obtained with HST FOS. The times of maxima ( $T_{\rm max}$ ) for UV and zeroth-order data are given in relation to T₀=2 450 311.8058746 BCT.
Period Amplitude (UV) $T_{\rm max}$ Amplitude (3400 Å) $T_{\rm max}$

(s) (mma) (s) (mma) (s)

464.248 $9.80\pm0.62$ $132.3\pm4.7$ $4.97 \pm 0.40$ $140.7 \pm 6.0$

423.200 $22.51\pm0.62$ $187.5\pm1.9$ $11.01 \pm 0.40$ $191.0 \pm 2.5$

**Table 2:** Periodicities identified using pre-whitening analysis for the HST FOS light curve, during the *sforzando*, in 1996, both for the total UV (1196-2484 Å) and zeroth-order light obtained with HST FOS. The times of maxima ( $T_{\rm max}$ ) for UV and zeroth-order data are given in relation to T₀=2 450 311.8058746 BCT.
Period	Amplitude (UV)	$T_{\rm max}$	Amplitude (3400 Å)	$T_{\rm max}$
(s)	(mma)	(s)	(mma)	(s)
464.248	$9.80\pm0.62$	$132.3\pm4.7$	$4.97 \pm 0.40$	$140.7 \pm 6.0$
423.200	$22.51\pm0.62$	$187.5\pm1.9$	$11.01 \pm 0.40$	$191.0 \pm 2.5$

Source LaTeX | All tables | In the text

	1 Introduction
	2 Observations with HST
	3 Ultraviolet spectra
	4 Amplitude variation with wavelength
	5 Concluding remarks
	References