The archival IUE spectra of the bright δ Scuti star ρ Puppis (HD 67523) reveal large flux variations from 2000 to 3000 Å over an 8 hr observing run. The time separating two successive flux maxima at 2900 Å is 3 hr and 19 minutes which compares well to the period of the radial fundamental mode. At 2900 Å, the flux at maximum is about 1.20 larger than at minimum which is consistent with a 260 K increase of the effective temperature between minimum and maximum. The optical brightness around 5400 Å as recorded by the Fine Error Sensor varied in phase with the ultraviolet flux, corresponding to a decrease in magnitude of −0.11 mag.

中文翻译：

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IUE记录的ρPuppis的紫外线通量变化

明亮的δScuti恒星ρPuppis（HD 67523）的档案IUE光谱显示，在8小时的观察运行中，从2000到3000Å​​有较大的通量变化。将两个连续的通量最大值在2900Å处分开的时间为3小时19分钟，与径向基本模式的周期相比要好。在2900Å时，最大通量比最小通量大约1.20，这与最小和最大之间的有效温度增加260 K一致。精细误差传感器记录的大约5400Å的光学亮度与紫外线通量同相变化，对应于-0.11 mag量级的降低。