论文标题

迅速和苔丝的NUV和光发射的表征和光发射和温度

Characterisation of the NUV and Optical Emission and Temperature of Flares from Ross 733 with Swift and TESS

论文作者

Jackman, James A. G.

论文摘要

我们介绍了一场协调一致的运动的结果,以同时在光学和近距离粉状(NUV)中同时观察M Star Binary Ross 733。我们在迅速的光曲线中观察到了两个耀斑。其中一个是耀斑的衰减阶段,也被苔丝检测到,另一个仅在NUV中检测到。我们使用苔丝光曲线来测量Ross 733的白光耀斑速率,并计算系统以每1.5天的能量为$ 10^{33} $ ERG的能量燃烧。我们使用同时​​观察值来测量售价为$ 7340^{+810} _ { - 900} $ K期间的伪内um温度。我们还使用观察结果来测试9000 K黑体耀斑模型的NUV预测,并发现它低估了我们在Swift Nuv光曲线中发现的耀斑数量。我们讨论了这样做的原因,并将其归因于9000 K以上的排放线和连续温度的未指定的贡献。我们讨论了如何在将来的多波长耀斑运动中破坏两者之间的堕落方式。

We present the results of a coordinated campaign to simultaneously observe the M star binary Ross 733 simultaneously in the optical and near-ultraviolet (NUV) with TESS and Swift respectively. We observed two flares in the Swift NUV light curve. One of these was decay phase of a flare that was also detected with TESS and the other was only detected in the NUV. We used the TESS light curve to measure the white-light flare rate of Ross 733, and calculate that the system flares with an energy of $10^{33}$ erg once every 1.5 days. We used our simultaneous observations to measure a pseudo-continuum temperature of $7340^{+810}_{-900}$K during the flare decay. We also used our observations to test the NUV predictions of the 9000 K blackbody flare model, and find that it underestimates number of flares we detect in our Swift NUV light curve. We discuss the reasons for this and attribute it to the unaccounted contributions from emission lines and continuum temperatures above 9000 K. We discuss how additional observations are required to break the degeneracy between the two in future multi-wavelength flare campaigns.

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