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首页> 外文期刊>The Astrophysical journal >Monitoring Three Less-Studied δ Scuti Variables: GW Ursae Majoris, BO Lyncis, and AN Lyncis
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Monitoring Three Less-Studied δ Scuti Variables: GW Ursae Majoris, BO Lyncis, and AN Lyncis

机译:监视三个研究较少的δScuti变量:GW Ursae Majoris,BO Lyncis和AN Lyncis

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We present results from monitoring three δ Scuti variables. GW UMa is found to be a stable, monoperiodic, high-amplitude δ Scuti variable with a revised period of 0.20319389 days. We also report a full radial velocity curve, a near-solar metal content, and a rotational velocity of 15 ± 5 km s-1. From a very short time line we find that BO Lyn has a constant period change of -1.5 × 10-10 days day-1. We also find two potential secondary frequencies of f2 = 15.81 and f3 = 13.60 cycles day-1. Finally, we report some unusual results for AN Lyn. We show that the period and amplitude are changing in phase and that this change is related to a binary companion.
机译:我们介绍了通过监视三个δScuti变量得出的结果。 GW UMa被发现是稳定的,单周期的,高振幅δScuti变量,修正期为0.20319389天。我们还报告了完整的径向速度曲线,接近太阳的金属含量以及15±5 km s-1的旋转速度。从很短的时间轴中,我们发现BO Lyn在第1天的周期变化为-1.5×10-10天。我们还发现第1天有两个潜在的次级频率f2 = 15.81和f3 = 13.60个周期。最后,我们报告了AN Lyn的一些异常结果。我们表明,周期和幅度相位变化,并且这种变化与二进制伴奏有关。

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